OBJECTIVE: To determine to what extent inaccuracies in measuring the end diastolic diameter of the left ventricle, the interventricular septum, and the posterior wall, by M mode echocardiography influence the left ventricular mass calculated by the Devereuxs formula. DESIGN: Mathematical model. RESULTS: Relatively small measurement inaccuracies such as 5%, which are known to be inherent in the echocardiographic method, will result in changes of left ventricular mass in the range of 8% to 15%. This is equivalent to expected changes in left ventricular mass seen during treatment. CONCLUSIONS: The use of Devereuxs formula to calculate left ventricular mass is limited by measurement inaccuracies in individual patients.. ...
How is short-axis views of two-dimensional echocardiograms abbreviated? SA-2DE stands for short-axis views of two-dimensional echocardiograms. SA-2DE is defined as short-axis views of two-dimensional echocardiograms rarely.
TY - JOUR. T1 - Noninvasive visualization of the left main coronary artery by cross sectional echocardiography. AU - Weyman, A. E.. AU - Feigenbaum, Harvey. AU - Dillon, J. C.. AU - Johnston, K. W.. AU - Eggleton, R. C.. PY - 1976. Y1 - 1976. N2 - Real time cross sectional echocardiographic studies of the left main coronary artery (LMCA) were performed in 15 normal patients, 15 patients with angiographically proven coronary artery disease but normal left main coronary segments, three patients with greater than 75% obstruction of the left main coronary artery, and one patient with a large aneurysm of the left main coronary artery. In normal subjects the LMCA evaginates from the inferolateral wall of the aorta. The artery appears as two dominant parallel linear echoes separated by a clear space representing the lumen of the vessel. The LMCA courses beneath the right ventricular outflow tract and can generally be followed to its expected point of bifurcation. Confirmation that this structure was in ...
This investigation was designed to determine the role of echocardiography in the assessment of left ventricular function in patients with significant coronary arterial disease. Satisfactory echocardiograms were obtained in 43 patients with coronary arterial disease. The ventriculographic ejection fraction was determined by the area length method. The echocardiographic left ventricular end-diastolic dimension was increased to more than 5-4 cm in 17 patients. Fifteen of these patients had an ejection fraction of 0-45 or less. Three patients had a normal left ventricular end-diastolic dimension but an ejection fraction of less than 0-45. Twenty-three patients had an ejection fraction of more than 0-45 and a normal left ventricular end-diastolic dimension. The left ventricular end-diastolic dimension index was increased (greater than 3 cm/m2) in 15 patients, all of whom had ejection fraction of less than 0-45. Three patients had a normal left ventricular end-diastolic dimension index and an ejection ...
To test the feasibility of imaging the left main coronary artery (LMCA) noninvasively as a means of detecting left main coronary artery disease, we studied 73 patients who underwent cardiac catheterization and cross-sectional echocardiography. Fifty-two had a normal LMCA (controls) and 21 had significant obstruction (greater than or equal to 50% luminal reduction). The apical, tomographic, cross-sectional, phased-array, echocardiographic approach was used, and the LMCA was imaged in 52 of 73 patients (71%). In 34 of 36 controls (94%) the LMCA was correctly judged as having no luminal obstruction. In the other two, and asymmetric, high-intensity echo in one wall of the artery suggested atherosclerotic disease, but coronary angiography revealed no obstruction. In 12 of 16 patients (75%) in whom significant LMCA disease was imaged, obstruction was predicted by echocardiographic criteria of either luminal irregularity or an asymmetric, high-intensity echo in the arterial wall. This preliminary study ...
OBJECTIVE: To investigate the changes of left ventricular structure and function in patients with liver cirrhosis and their correlation with the model for end-stage liver disease (MELD) score. METHODS: A total of 89 cirrhotic patients admitted between June, 2012 and June, 2014 and 30 healthy control subjects were enrolled in the study. According to MELD score, the cirrhotic patients were divided into 3 groups with MELD scores ≤9, between 10 and 19, and ≥20. The parameters of the left ventricle in resting state were measured using Doppler echocardiography, including left ventricular end systolic diameter (LVESD), left ventricular end diastolic diameter (LVEDD), interventricular septal thickness (IVST), left ventricular posterior wall thickness (LVPWT), left atrial diameter (LAD), ejection fraction (LVEF), cardiac output (CO), mitral flow velocity, and E wave deceleration time (DT), and evaluated their relationship with MELD score ...
A method for generating a synthesis echocardiographic image comprises first obtaining, for a plurality of pathologically similar reference hearts, a reference echocardiographic image of each reference heart at end-systole and at end-diastole. Next, the coupled epicardial and endocardial borders are identified in each echocardiographic image. An epicardial/endocardial border pair is then modeled from the identified borders. The method then locates a plurality of predetermined features in the reference echocardiographic images. The predetermined features are then located in the subject echocardiographic image from the location of the predetermined features in the reference echocardiographic images. The modeled epicardial/endocardial border pair is then mapped onto the subject echocardiographic image relative to the location of the predetermined features in the subject echocardiographic image. The apparatus generally comprises an echocardiographic machine for obtaining the echocardiographic images that are
TY - JOUR. T1 - Impact of goal directed basic echocardiography on diagnostic and therapeutic management in an ICU of cardiac surgery. AU - Moreno, O.. AU - Ochagavía, A.. AU - Artigas, A.. AU - Barbadillo, S.. AU - Tomás, R.. AU - Bosque, M. D.. AU - Fortia, C.. AU - Baigorri, F.. PY - 2019/1/1. Y1 - 2019/1/1. N2 - © 2019 Elsevier España, S.L.U. y SEMICYUC Objective: Few studies have evaluated the impact in diagnosis and therapeutic management of basic transthoracic echocardiography in postoperated cardiac surgery. The aim of our study was to evaluate the impact of basic transthoracic echocardiography in the management of this kind of patients. Design: Over an 18-month period, we prospectively studied all patients admitted to a university hospital Intensive Care Unit following heart surgery. We evaluated clinically all of them to establish a diagnosis and an initial treatment. We performed basic transthoracic echocardiography for a diagnosis evaluation that was compared with clinical ...
Overall cardiac function assessment was assessed by tests (echocardiogram,cardiac catheterization (optional),electrocardiogram,B-type natriuretic peptide [BNP]), clinical symptoms (subjective symptoms) and the New York Heart Association (NYHA) cardiac functional classification.Overall assessment of cardiac function was assessed based on the evaluation items including interventricular septum thickness, left ventricular posterior wall thickness, left ventricular mass, clinical function tests and clinical symptoms. A subject was considered to be Improved: if Improved in 2 items or more, Unchanged: Improved in one item and unchanged in 2 items or unchanged in all 3 items, Aggravated: Aggravated in one item or more ...
Emergency echocardiography refers to the use of echocardiography in the assessment of patients with suspected cardiovascular disease requiring immediate diagnosis and treatment. The European Association of Cardiovascular Imaging (EACVI) has recently set standards for adequate education and training for the safe and efficient use of echocardiography in emergency cardiac care. The level of competence in echocardiography required for emergency cases is at least the same as for elective cases and competence requirements for emergency echocardiography are the same for cardiologists and non-cardiologists. The EACVI recognizes two levels of competence in emergency echocardiography: the independent operator level and the expert operator level. This chapter discusses general considerations as well as requirements and levels of competence regarding training for emergency echocardiography.
Hypertension is a major and correctable cardiovascular risk factor. The correct diagnosis of hypertension and precise assessment of cardiovascular risk are essential to give proper treatment in patients with hypertension. Although echocardiography is the second-line study in the evaluation of hypertensive patients, it gives many clues suggesting bad prognosis associated with hypertension, including increased left ventricular (LV) mass, decreased LV systolic function, impaired LV diastolic function, and increased left atrial size and decreased function. Along with conventional echocardiographic methods, tissue Doppler imaging, three-dimensional echocardiography, and strain echocardiography are newer echocardiographic modalities in the evaluation of hypertensive patients in the current echocardiographic laboratories. Understanding conventional and newer echocardiographic parameters is important in the diagnosis and assessment of cardiovascular risk in hypertensive patients.
Procedure of Fetal Echocardiography. The test is non-invasive, safe and usually takes about 30 minutes to be performed. There are no preparations that need to be done before the test and is very similar to a routine pregnancy ultrasound. Fetal echocardiography is done through the abdomen or the vagina; if done through the former, it is called abdominal echocardiography, while the latter is called transvaginal echocardiography.. In abdominal echocardiography, you will be required to lie down. Then a special lubricating gel will be applied on the bare belly which will enable the technician to use an ultrasound transducer to send and receive signals from the sound waves over the skin. The transducers sends sound waves through the body, which eco upon hitting the childs heart are reflected back to the transducer and are then converted into images on a screen. The transducer is moved all over the stomach to get complete images of the heart. In case of transvaginal echocardiography, a small probe is ...
The Echocardiography Department conducts over 2,000 studies annually. Including over 1500 Transthoracic Echocardiograms, 150 Dobutamine Stress Echocardiograms, 100 Treadmill Stress Echocardiograms, 200 Transesophageal Echocardiograms. Services provided include diagnostic M-Mode/2-Dimensional Echocardiograms, 3-dimensional Echocardiograms, Continuous Wave Doppler, Pulsed Wave Doppler, Color Flow Doppler, and Contrast Echocardiography.. Kern Medical is dedicated to quality. All practices conform to the guidelines for Diagnostic Echocardiography as prescribed by the American Heart Association, American College of Cardiology, and the American Society of Echocardiography. Our department is under the leadership of Dr. Justin Pearlman. Furthermore all of our cardiac sonographers are highly trained and supervised by our onsite physician.. ...
TY - JOUR. T1 - Recommendations for quantitation of the left ventricle by two-dimensional echocardiography. American Society of Echocardiography Committee on Standards, Subcommittee on Quantitation of Two-Dimensional Echocardiograms.. AU - Schiller, N. B.. AU - Shah, P. M.. AU - Crawford, M.. AU - DeMaria, A.. AU - Devereux, R.. AU - Feigenbaum, H.. AU - Gutgesell, H.. AU - Reichek, N.. AU - Sahn, David. AU - Schnittger, I.. PY - 1989/9. Y1 - 1989/9. N2 - We have presented recommendations for the optimum acquisition of quantitative two-dimensional data in the current echocardiographic environment. It is likely that advances in imaging may enhance or supplement these approaches. For example, three-dimensional reconstruction methods may greatly augment the accuracy of volume determination if they become more efficient. The development of three-dimensional methods will depend in turn on vastly improved transthoracic resolution similar to that now obtainable by transesophageal echocardiography. ...
Vol 22: A Comparison of Different Techniques of Two-Dimensional Speckle-Tracking Strain Measurements of Right Ventricular Systolic Function in Patients with Acute Pulmonary Embolism.. This article is from Journal of Cardiovascular Ultrasound, volume 22.AbstractBackground: Speckle-tracking echocardiograp. Biblioteca virtual para leer y descargar libros, documentos, trabajos y tesis universitarias en PDF. Material universiario, documentación y tareas realizadas por universitarios en nuestra biblioteca. Para descargar gratis y para leer online.
Since its release in April, 2000, Bonita Andersons first textbook, Echocardiography: The Normal Examination and Echocardiographic Measurements has proved to be a valuable learning tool for students, teachers of echocardiography and sonographers worldwide. Now in its third edition, it has been adopted by many schools as the primary text for courses in echocardiography.. After the release of the second edition of Echocardiography… Bonita turned her writing skills to the subject of cardiac pathology and almost three years after committing to the task, a new textbook, A Sonographers Guide to the Assessment Heart Disease was released in January, 2014. This new text has also been adopted by many as the perfect complement to Echocardiography… as it takes students to the next level of learning the art of echocardiography.. ...
Quantification of myocardial blood flow reserve in patients with CAD using real-time myocardial contrast echocardiography (RTMCE) has been demonstrated to further improve accuracy over the analysis of wall motion and qualitative analysis of myocardial perfusion.. Conventional stress echocardiography compares wall motion during rest and stress. The FDA has approved a contrast agent for use in patients with suboptimal echocardiograms, which accounts for up to 20% of resting echo studies. A suboptimal image is one in which at least two of six myocardial segments of the left ventricle cannot be visualized in the apical views. Contrast is used to opacify the LV chamber and to improve the delineation of the left ventricular endocardial border. Patient with suboptimal echoes include technically difficult patients, such as obese patients; patients undergoing mechanical ventilation; or patients with pulmonary hypertension.. Thomas R. Porter, MD, Chair of Cardiology at the University of Nebraska Medical ...
Currently, there is a paucity of investigations that have assessed the effects of RT on LV morphology and systolic function in healthy older individuals. We recently assessed the effects of 16 weeks of upper and lower extremity RT, in previously sedentary healthy older males (mean age: 68 years), on LV morphology, end-systolic meridional wall stress and LV systolic function (26). Resting two-dimensional echocardiograms were performed after 4, 8, 12 and 16 weeks of moderate (60% one repetition maximum, 1RM) to high (80% 1RM) intensity upper and lower extremity RT. The major finding of this investigation was that 16 weeks of RT was a sufficient stimulus to increase upper (+16%) and lower (+29%) extremity maximal muscular strength but was insufficient of a stimulus to alter LV posterior wall thickness, ventricular septal wall thickness, systolic or diastolic cavity dimensions, relative wall thickness and estimated LV mass (26). In addition, this form of training was not associated with an ...
Fifty consecutive patients undergoing aortic valve replacement for isolated aortic regurgitation were studied prospectively by echocardiography, electrocardiography and cardiac catheterization. Good quality echocardiograms were obtained in 49 of the 50 patients. Left ventricular (LV) dilatation was present in all 49 patients. LV systolic function, as assessed by echocardiographic percent fractional shortening, was normal in many patients but was moderately to severely reduced (less than 25%) in 14 patients (29%). Echocardiographic studies 6 months postoperatively revealed significant reductions in LV end-diastolic dimension (73.8 mm vs 58.7 mm; p less than 0.01), and serial echocardiographic studies early and late after operation revealed that the decrease in LV size had occurred by the time of the early study (8-22 days postoperatively), with little additional change thereafter. Operative deaths occurred in three of the 49 patients (6%). Eight of the 49 patients (16%) died of congestive heart ...
TY - CHAP. T1 - Introduction to echocardiography. AU - Lohr, Jamie L.. AU - Sivanandam, Shanthi. PY - 2005/12/1. Y1 - 2005/12/1. N2 - The use of ultrasound to provide noninvasive evaluation of cardiac structure and function was a revolutionary advancement in cardiac care in the late 20th century. Today, echocardiography allows for detailed serial examinations of: (1) heart development; (2) cardiac structure and function; and (3) changes in normal physiologic states and pathologic conditions. The goals of this chapter are to: (1) provide the reader with a brief overview of the types of echocardiography in clinical use today; (2) review the basic physical principles that underlie this clinical tool; and (3) demonstrate how echocardiography can be used to assess cardiac structure and function.. AB - The use of ultrasound to provide noninvasive evaluation of cardiac structure and function was a revolutionary advancement in cardiac care in the late 20th century. Today, echocardiography allows for ...
To investigate the relationship between the elasticity of the carotid artery and the LV (left ventricle) systolic function in patients with diabetic nephropathy (DN) by using two-dimensional speckle-tracking strain echocardiography (2D-STE). DN patients (n = 108) and control subjects (n = 112), all of whom underwent echocardiography and carotid ultrasound. Analysis of LV GLS (global longitudinal strain) from the apical two-chamber (2C), three-chamber (3C), and four-chamber (4C) views. Meanwhile, the circumferential strain (CS) of the carotid artery was obtained from the view of the short-axis right common carotid artery. The differences between the two groups were compared, and a correlation analysis between CS and GLS was performed. The 4CGLS, 2CGLS, 3CGLS, and CS of the DN group were significantly lower at significant levels in contrast to the control group (p | 0.05). There was a significantly positive correlation of CS with 4CGLS, 2CGLS, and 3CGLS in all subjects (r = 0.809, p = 0.000; r = 0.830, p
Background: There is conflicting information on the effects of oestrogen on the heart in women, especially those using postmenopausal hormone therapy. Whilst some studies reported a beneficial effect, others showed adverse outcomes. The interplay of lifestyle factors and type/timing of therapy remains to be clarified.. Aim: The aim of this study was to determine the effects of lifestyle and hormone therapy on heart function and structure in postmenopausal women.. Method: As part of a large longitudinal study of women randomly recruited from an urban population, the study assessed 410 suitable women by echocardiography in Year 1 and Year 5 of the study by two independent cardiologists.. Results: In lifestyle characteristics, the difference in age and body mass (as markers of cardiovascular risk) was in favour of never-users versus hormone therapy-users. Using an arbitrary cut-off ≥15% change for an effect, we found lifestyle factors had minimal effect on the two measured parameters - ejection ...
Echocardiography with its multiple modalities plays a central role in the evaluation of patients with known or suspected coronary artery disease, starting from the differential diagnosis of the patient presenting with acute chest pain. In the patient presenting with acute myocardial infarction (raised troponins) whether it is with ST-segment elevation or without, echocardiography is the first imaging modality used in order to ascertain the presence and extent of LV dysfunction and the presence of complications. In the absence of myocardial infarction (negative troponins), echocardiography will play an important diagnostic role in identifying the presence of reversible myocardial ischaemia. Stress echocardiography in many institutions is now the preferred stress modality associated with imaging as it is cost-effective and does not use ionizing radiation. Finally, echocardiography plays a pivotal role in the assessment of myocardial viability since the presence and extent of viable myocardium may ...
Non-invasiveness and instantaneous diagnostic capability are prominent features of the use of echocardiography in critical care. Sepsis and septic shock represent complex situations where early hemodynamic assessment and support are among the keys to therapeutic success. In this review, we discuss the range of applications of echocardiography in the management of the septic patient, and propose an echocardiography-based goal-oriented hemodynamic approach to septic shock. Echocardiography can play a key role in the critical septic patient management, by excluding cardiac causes for sepsis, and mostly by guiding hemodynamic management of those patients in whom sepsis reaches such a severity to jeopardize cardiovascular function. In recent years, there have been both increasing evidence and diffusion of the use of echocardiography as monitoring tool in the patients with hemodynamic compromise. Also thanks to echocardiography, the features of the well-known sepsis-related myocardial dysfunction have been
© 2014, Wiley Periodicals, Inc. Background Three-dimensional fusion echocardiography (3DFE) is a novel postprocessing approach that utilizes imaging data acquired from multiple 3D acquisitions. We assessed image quality, endocardial border definition, and cardiac wall motion in patients using 3DFE compared to standard 3D images (3D) and results obtained with contrast echocardiography (2DC). Methods Twenty-four patients (mean age 66.9 ± 13 years, 17 males, 7 females) undergoing 2DC had three, noncontrast, 3D apical volumes acquired at rest. Images were fused using an automated image fusion approach. Quality of the 3DFE was compared to both 3D and 2DC based on contrast-to-noise ratio (CNR) and endocardial border definition. We then compared clinical wall-motion score index (WMSI) calculated from 3DFE and 3D to those obtained from 2DC images. Results Fused 3D volumes had significantly improved CNR (8.92 ± 1.35 vs. 6.59 ± 1.19, P | 0.0005) and segmental image quality (2.42 ± 0.99 vs. 1.93 ± 1.18, P
TY - JOUR. T1 - Left ventricular global systolic function assessment by echocardiography. AU - Chengode, Suresh. PY - 2016/10/1. Y1 - 2016/10/1. N2 - The left ventricle, with its thickened myocardial walls, unlike the right ventricle has no measurable geometric shape. It has a conical apex and its function quantification, needs intensive, 2D, 3D and M mode transesophageal echocardiography, which is described in this review.. AB - The left ventricle, with its thickened myocardial walls, unlike the right ventricle has no measurable geometric shape. It has a conical apex and its function quantification, needs intensive, 2D, 3D and M mode transesophageal echocardiography, which is described in this review.. KW - Echocardiography. KW - Intraoperative or intensive care setting. KW - Left ventricular global systolic function. UR - http://www.scopus.com/inward/record.url?scp=84993953630&partnerID=8YFLogxK. UR - http://www.scopus.com/inward/citedby.url?scp=84993953630&partnerID=8YFLogxK. U2 - ...
TY - JOUR. T1 - Incremental cost-effectiveness of exercise echocardiography vs. SPECT imaging for the evaluation of stable chest pain. AU - Shaw, Leslee J.. AU - Marwick, Thomas H.. AU - Berman, Daniel S.. AU - Sawada, Stephen. AU - Heller, Gary V.. AU - Vasey, Charles. AU - Miller, D. Douglas. PY - 2006/10/1. Y1 - 2006/10/1. N2 - Aims: Technological advances in cardiac imaging have led to dramatic increases in test utilization and consumption of a growing proportion of cardiovascular healthcare costs. The opportunity costs of strategies favouring exercise echocardiography or SPECT imaging have been incompletely evaluated. Methods and results: We examined prognosis and cost-effectiveness of exercise echocardiography (n = 4884) vs. SPECT (n = 4637) imaging in stable, intermediate risk, chest pain patients. Ischaemia extent was defined as the number of vascular territories with echocardiographic wall motion or SPECT perfusion abnormalities. Cox proportional hazard models were employed to assess ...
The aim of this study was to: (1) compare the usefulness, in clinical practice, of different echocardiographic methods of left ventricular (LV) function determination in patients with a recent thrombolytic-treated acute myocardial infarction (AMI); (2) compare these measurements with the reference m …
The stepwise approach in evaluation of left ventricular (LV) diastolic function is essential in any patients with dyspnea on exertion or heart failure. Many of them have normal to near-normal ejection fractions (EFs). These subsets of patients are labeled as diastolic heart failure or heart failure with preserved EF. It is important to differentiate diastolic dysfunction from dyspnea of pulmonary origin for further management and future prognosis. LV filling pressures is usually synonymous with pulmonary capillary wedge pressure (PCWP), mean left atrial pressure (LAP), mean LV diastolic pressure, and LV end-diastolic pressure (LVEDP). PCWP on the other hand is also an indirect estimate of LV diastolic pressures. LVEDP is often elevated in early diastolic dysfunction because of a large atrial pressure wave, while mean PCWP and LAP remain normal. While mean PCWP and LAP increased during tachycardia and where there is increased LV afterload which is the basis for the diastolic stress test. It is ...
Bengaluru: Fortis Hospital, Bengaluru in collaboration with Philips India today launched an echocardiography training centre, focused to help doctors learn more about echocardiography.. After ECG, ultrasound based echocardiography is the second most widely used test for investigating heart diseases. With increasing incidents of heart diseases in India, echocardiography as an easily available and affordable test needs to be better utilized in various patient scenarios. Physicians are in need of such trainings to better manage their patients and to also upgrade their skills in the latest methods of TBC.. Fortis Hospitals through F.A.M.E (Fortis Academy of Medical Education) has always been at the forefront when it comes to academics and education. The echocardiography training centre, which focuses on cardiology and diagnostics is a demonstration of Fortis and Philips commitment to upskill the healthcare professionals.. This specialized learning and training centre co-supported by Philips India, ...
Hot Tip - Transitioning From the Parasternal to Apical Window: Gulfcoast Ultrasound Institute instructor Dennis Atherton, RDCS, RCS, RRT, FASE, demonstrates how to transition from the parasternal cardiac window to the apical window using your parasternal image to guide you. Learn how perform Transitioning From the Parasternal to Apical Window as well as many other tips and tricks in the Introduction to Adult Echocardiography course (July 17-21, 2017). Introduction to Adult Echocardiography course (July 17-21, 2017) is designed to provide a strong foundation to perform and/or interpret adult cardiac ultrasound examinations. The Introduction to Adult Echocardiography course is taught by leading echocardiography experts, and includes comprehensive lectures, interactive case studies using an audience response system, and extensive hands on scanning featuring a 3:1 hands-on ratio using live models for the most hands on scan time.. ...
TY - JOUR. T1 - Value and limitations of two-dimensional echocardiography in predicting myocardial infarct size. AU - Shen, Win Kuang. AU - Khandheria, Bijoy K.. AU - Edwards, William D.. AU - Oh, Jae K.. AU - Miller, Fletcher A.. AU - Naessens, James M.. AU - Tajik, A. Jamil. PY - 1991/11/1. Y1 - 1991/11/1. N2 - To investigate the quantitative relations between the severity of regional wall motion abnormalities and segmental infarct size and between the severity of overall left ventricular dysfunction and global infarct size, a clinicopathologic study was undertaken of 30 patients who had a 2-dimensional (2-D) echocardiogram within 7 days before death. The severity of regional wall motion abnormalities was graded for each segment with a 2-D echocardiographic 14-segment model. The severity of global left ventricular dysfunction was calculated as the mean of the visualized regional wall motion scores. On pathologic examination of autopsy specimens, segmental infarct size was estimated as a ...
The spectrum of anomalies in hearts having a univentricular atrioventricular (AV) connection was examined by two-dimensional echocardiography in 183 patients and the anatomic findings were compared with angiography. The mode of AV connection was found to be of three types: 1) double inletvia two A V valves; 2) singleinlet via one AV valve with absence of the other (left or right AV valve atresia); and 3) common inletvia a common AV valve. Identification of an accessory chamber by two-dimensional echocardiography was possible with 90% sensitivity, but it was limited compared with angiography in patients with severely hypoplastic anterior Chambers and pulmonary valve atresia. All patients with subaortic outlet foramen obstruction were detected. Great artery position and the presence of obstruction to pulmonary flow were correctly predicted in all but one patient. Two-dimensional echocardiography was superior to angiography for the detection of AV valve abnormalities which were present in 27% and ...
Intracardiac echocardiography (ICE) is an imaging technique that is becoming increasingly available as an alternative to transoesophageal echocardiography to guide percutaneous interventional procedures. The probe can be inserted under local anaesthesia and is principally used during closure of atrial septal abnormalities. The main advantages of ICE over transoesophageal echocardiography include the elimination of the need for general anaesthesia, clearer imaging, shorter procedure times and reduced radiation doses to the patient. Within this article we review some of the current applications of ICE and how to image from within the heart.. ...
Using the Vevo 2100 and ultrasound pulsed-wave (PW) Doppler imaging, Caralynn Wilczewski from Dr. Frank L Conlons lab has developed a reliable method for performing non-invasive in utero embryonic echocardiography on early gestation mouse embryos. Read more.
INTRODUCTION. Exercise echocardiography (EE) has advanced significantly from the diagnostic point of view, and several recent studies (most carried out at the same center) have shown that the extent of resting or exercise- induced ventricular dysfunction is a robust predictor of cardiac death and myocardial infarction.1-10. The purpose of this study was to investigate whether the number and location of diseased territories during the exercise peak, as well as the type of response to exercise (ischemia, necrosis or remote ischemia) influenced risk stratification more than clinical, stress test, and resting echocardiography variables in patients with known or suspected coronary artery disease (CAD). We also investigated whether EE supplemented resting echocardiography in patients with a history of acute myocardial infarction (AMI) as recorded in the medical history.. PATIENTS AND METHODS. Patients. We studied 2479 patients who had undergone treadmill EE at our institution during a 4.2-year period ...
Nardi F. Echocardiographic methods integrated in the context of multimodality imaging. Minerva Cardioangiol 2017;65:577-8. DOI: 10.23736/S0026-4725.17.04481-4 ...
Echocardiography is used to diagnose certain cardiovascular disease. In fact, it is one of the most widely used diagnostic tests for heart disease. It can provide a wealth of helpful information, including the size and shape of the heart, its pumping strength, and the location and extent of any damage to its tissues. It is especially useful for assessing diseases of the heart valves. It not only allows doctors to evaluate the heart valves, but it can detect abnormalities in the pattern of blood flow, such as the backward flow of blood through partly closed heart valves, known as regurgitation. By assessing the motion of the heart wall, echocardiography can help detect the presence and assess the severity of coronary artery disease, as well as help determine whether any chest pain is related to heart disease. Echocardiography can also help detect hypertrophic cardiomyopathy, in which the walls of the heart thicken in an attempt to compensate for heart muscle weakness. The biggest advantage to ...
This Echocardiography Course serves as an introduction to use of ultrasound imaging in the cardiac evaluation. The lab and didactic portions are correlated in the teaching of normal echocardiography anatomy, techniques, and instrumentation pertaining to heart study. Specific knowledge/skill transfer processes are accomplished with 2D imaging, MMode, and an introduction to Spectral & Color Flow. At NAUTC, the program is designed to provide the student/ participant with the skills and knowledge necessary to prepare the program graduate to apply for an entry‐level echocardiography job. A certificate is awarded to the student upon successful completion of all graduation requirements listed in the student catalog.. Topics. The following broad topics will be covered in Adult Echocardiography course but not limited to:. ...
Looking for online definition of cross-sectional echocardiography in the Medical Dictionary? cross-sectional echocardiography explanation free. What is cross-sectional echocardiography? Meaning of cross-sectional echocardiography medical term. What does cross-sectional echocardiography mean?
TY - JOUR. T1 - The Doppler myocardial performance index during low-dose dobutamine echocardiography predicts mortality and left ventricular dilation after a first acute myocardial infarction. AU - Nørager, Betina. AU - Husic, Mirza. AU - Møller, Jacob E.. AU - Pellikka, Patricia A.. AU - Appleton, Christopher P.. AU - Egstrup, Kenneth. PY - 2005/9. Y1 - 2005/9. N2 - Background: Myocardial viability can be detected by wall motion analysis during low-dose dobutamine echocardiography (LDDE) after acute myocardial infarction (AMI). However, wall motion analysis describes only left ventricular (LV) systolic reserve. The Doppler myocardial performance index (MPI) is a quantitative measure of combined LV systolic and diastolic function. We hypothesized that an increase (deterioration) in MPI during LDDE, reflecting reduced systolic and diastolic LV reserve, could provide prognostic information beyond conventional systolic wall motion analysis on mortality, morbidity, and LV remodeling after AMI. ...
TY - JOUR. T1 - Redundant mitral valve simulating an intracardiac mass on transesophageal echocardiography. AU - Willens, H. J.. AU - Chakko, S.. AU - Levy, R.. AU - Bauerlein, Eugene. AU - Kessler, K. M.. PY - 1994/1/1. Y1 - 1994/1/1. N2 - Cardiac ultrasound is a useful diagnostic modality for the evaluation of cardiac masses and tumors. However, normal cardiac structures and normal variants can mimic masses with both transthoracic echocardiography and transesophageal echocardiography. We report two patients in whom a redundant mitral leaflet simulated cardiac tumor attached to the mitral valve by transesophageal echocardiography.. AB - Cardiac ultrasound is a useful diagnostic modality for the evaluation of cardiac masses and tumors. However, normal cardiac structures and normal variants can mimic masses with both transthoracic echocardiography and transesophageal echocardiography. We report two patients in whom a redundant mitral leaflet simulated cardiac tumor attached to the mitral valve by ...
0070] Transthoracic Echocardiography in conscious mice was performed using Sequoia Acuson C256 (Malvern, Pa.) ultrasound machine, equipped with a frequency bandwidth of 15 MHz (Am J Physiol, 1999. 277(5 Pt 2): p. H1967-74; Cancer Res, 2003. 63(20): p. 6602-6). The two-dimensional (2-D) and M-mode echocardiogram were obtained in the parasternal short and long axis view of the left ventricle (LV) at the level of the papillary muscles and sweep speed of 200 mm/sec. Using the M-mode echocardiogram image, four parameters were measured: (i) left ventricular posterior wall thickness at end of diastole (LVPWD), (ii) interventricular septa) thickness at end of diastole (IVSD), (iii) left ventricle (LV) chamber diameter at end of diastole (LVEDD), and (iv) left ventricle chamber diameter at end of systole (LVESD). All measurements were performed according to the guidelines set by the American Echocardiography Society. For each mouse, three to five values for each measurement were obtained and averaged for ...
Background Right-heart-catheterization and transthoracic echocardiography are routine tests to measure pulmonary artery systolic pressure among lung transplantation candidates. Echocardiography may be as accurate as right-heart-catheterization, without the inherent risks of an invasive test. Methods We examined the correlation between pulmonary pressures estimated by echocardiography versus right-heart-catheterization among lung transplantation candidates and their correlation to measurements during lung transplantation. Our cohort included all lung transplantation candidates during 1997 through 2004 who initially underwent pulmonary pressure evaluation by right-heart-catheterization and echocardiography, as well as measurements during lung transplantation. Results Of the 106 candidates, evaluation by transthoracic echocardiography was possible in 79 (74.5%). Median pulmonary systolic pressures by right-heart-catheterization was 44.0 [33.2-50.0] mm Hg and by echocardiography 40.0 [32.5-51.5] mm ...
TY - JOUR. T1 - Electrocadiographic Scoring Helps Predict Left Ventricular Wall Motion Abnormality Commonly Observed after Subarachnoid Hemorrhage. AU - Sugimoto, Keiko. AU - Yamada, Akira. AU - Inamasu, Joji. AU - Hirose, Yuichi. AU - Takada, Kayoko. AU - Sugimoto, Kunihiko. AU - Tanaka, Risako. AU - Watanabe, Eiichi. AU - Ozaki, Yukio. PY - 2018/11/1. Y1 - 2018/11/1. N2 - Background: Cardiac wall motion abnormality (WMA) is a common complication in patients with subarachnoid hemorrhage (SAH) and is one determinant of their prognosis. The aim of this study was to examine whether the electrocardiography (ECG) findings at admission could predict WMA commonly observed after SAH. Materials and methods: We studied 161 SAH patients with SAH who were hospitalized in our institution between April 2007 and November 2010. We performed bedside 2-dimensional transthoracic echocardiography and 12-lead surface ECG within 24 hours of SAH onset. Each of the following ECG changes was scored as having 1 point: ...
Left ventricular (LV) volumes and ejection fraction (EF) are important predictors of cardiac morbidity and mortality. LV volumes provide valuable prognostic information which isparticularly useful in the selection of therapy or determination of the optimal time for surgery. Two-dimensional (2D) echocardiography is the most widely used non-invasive method forassessment of cardiac function, 2D echocardiography has however several limitations inmeasuring LV volumes and EF since the formulas for quantifications are based on geometricalassumptions. Three-dimensional (3D) echocardiography has been available for almost twodecades, although the use of this modality has not gained wide spread acceptance. 3D echocardiography can overcome the above mentioned limitation in LV volume and EF evaluation since it is not based on geometrical assumption. 3D echocardiography has been shownin several studies to be more accurate and reproducible with low inter- and intraobservervariability in comparison to 2D ...
Echocardiography is the method of choice to establish a diagnosis and determine a treatment plan for patients with noncompaction of ventricular myocardium (NVM). The 2-dimentional echocardiography, 3-dimentional echocardiography, color Doppler echocardiography and contrast-enhanced echocardiography are of critical importance for diagnosis and family screening of NVM.
In the standard precordial echocardiographic imaging planes, there is frequent dropout of atrial septal echoes in the region of the fossa ovalis that can be minimized by use of the subcostal imaging approach. The diagnostic sensitivity of this approach was reviewed in 154 patients (mean age 31 years, range 2 months to 74 years) with documented atrial septal defect in whom a satisfactory image of the atrial septum could be obtained.. Subcostal two-dimensional echocardiography successfully visualized 93 (89%) of the 105 ostium secundum atrial septal defects, all 32 (100%) ostium primum defects and 7 (44%) of the 16 sinus venosus defects. A defect was not visualized (false negative response) in 12 patients (11%) with an ostium secundum defect and in 9 patients (56%) with a sinus venosus defect. In three of the former and five of the latter, a two-dimensional echocardiographic contrast examination established the presence of the interatrial shunt. Twenty-four patients (16%) with clinical findings of ...
TY - JOUR. T1 - Diagnostic accuracy and role of intraoperative biplane transesophageal echocardiography in pediatric patients with left ventricle outflow tract lesions. AU - Singh, G. K.. AU - Shiota, T.. AU - Cobanoglu, A.. AU - Droukas, P.. AU - Rice, M. J.. AU - Sahn, D. J.. PY - 1998. Y1 - 1998. N2 - Objectives: To define the lesion-specific role of biplane transesophageal echocardiography in children with left ventricular outflow tract obstructive lesions, the diagnostic accuracy of transthoracic and transesophageal images were compared, and the impact of transesophageal echocardiography on perioperative management was evaluated. Background: The reported high postoperative recurrence of left ventricular outflow tract obstructive lesion can be due to its incomplete surgical relief. A full preoperative definition of the lesions would aid in better surgical outcome. The complexity and spectrum of such lesions provide opportunity to evaluate the role of a recently available biplane ...
TY - JOUR. T1 - Clinical and echocardiographic predictors of outcomes in patients with apical hypertrophic cardiomyopathy. AU - Moon, Jeonggeun. AU - Shim, Chi Young. AU - Ha, Jong Won. AU - Cho, In Jeong. AU - Kang, Min Kyung. AU - Yang, Woo In. AU - Jang, Yangsoo. AU - Chung, Namsik. AU - Cho, Seung Yun. PY - 2011/12/1. Y1 - 2011/12/1. N2 - Apical hypertrophic cardiomyopathy (HC) is considered to have a favorable prognosis, but recent observations have suggested less benign clinical courses. We investigated the outcomes in patients with apical HC and evaluated the predictors. All 454 patients with apical HC (316 men, age 61 ± 11 years) were recruited. Major cardiovascular events (MACE) were defined as unplanned hospitalization because of heart failure, stroke, or cardiovascular mortality. The patients were divided into 2 groups: group 1 with MACE and group 2 without MACE. During the follow-up period (43 ± 20 months), the all-cause mortality rate was 9% (39 of 454), and 110 patients (25%) had ...
Objectives: Therefore, our study objectives are: 1) Assessment of the frequency of myocardial dysfunction (segmental wall motion abnormalities, cardiac-specific enzyme elevations, and ECG changes) in patients with SAH. 2) Determination of predictive clinical variables for the occurrence of myocardial dysfunction following SAH. 3) Impact of myocardial dysfunction on neurological prognosis: death, secondary cerebral ischemia, hydrocephalus and rebleeding.. Methods: For this purpose serial echocardiograms and ECGs will be obtained and cardiac enzymes will be measured in 200-400 patients admitted to hospital with SAH in the four participating centers. The clinical variables that will be studied to predict cardiac dysfunction are: medical history, the CT-scan score, circulatory parameters, blood samples, medication, surgical intervention (coiling or clipping), and the neurological condition (Glasgow Coma Scale). The echocardiograms, ECGs and cardiac enzymes will be studied to determine if they have ...
Healthcare delivery is being transformed by COVID-19 to reduce transmission risk but continued delivery of routine clinical tests is essential. Stress echocardiography is one of the most widely used cardiac tests in the NHS. We assessed the impact of the first (W1) and second (W2) waves of the pandemic on ability to deliver stress echocardiography. Clinical echocardiography teams in 31 NHS hospitals participating in the EVAREST study were asked in July and November 2020 to complete a survey on the structure and delivery of stress echocardiography as well as impact on patients and staff. Results were compared to stress echocardiography activity in the same centre during January 2020. 24 and 19 NHS hospitals completed the survey in July and November, respectively. A 55% reduction in the number of studies performed was reported in W1, recovering to exceed pre-COVID rates in W2. The major change was in mode of stress delivery. 70% of sites stopped their exercise stress service in W1, compared to 19% in W2.
Adult critical care echocardiography (ACCE) accreditation is the product of years of successful collaboration between the British Society of Echocardiography and the Intensive Care Society, recognising the need for intensive care practitioners to be able to perform transthoracic echocardiograms to inform management of critically unwell patients. Following successful completion, accreditation is valid for five years. A bespoke training syllabus reflects the patient cohort and the clinical questions unique to critical care echocardiography, and seeks to empower bedside clinicians to use the diagnostic power of echocardiography in their acute assessments and day to day care.. The accreditation process includes 250 cases, an MCQ exam and successful completion of a practical exam. ACCE accredited echocardiographers are specifically trained in the assessment of volume status and cardiac output, integrating echo evaluation and outcomes with current levels of organ support, whilst covering the core ...
Is there a long-term predictive value of intraoperative low-dose dobutamine echocardiography in patients who have coronary artery bypass graft surgery with cardiopulmonary bypass?
Data from echocardiography provide a cornerstone in the management of heart failure. All imaging techniques can provide an ejection fraction, but the versatility of echocardiography makes it unique in the provision of volumes, diastolic function, right ventricular function, hemodynamics, and valvular regurgitation. The early detection of heart failure has been facilitated by the assessment of global longitudinal strain, which is also useful in later heart failure for the assessment of left ventricular synchrony. The use of echocardiography has been associated with favorable outcomes, probably on the basis of facilitation of appropriate therapy. This review examines the evidence provided by echocardiography and its application in specific settings. Although the guidelines emphasize that no single test satisfies all imaging requirements in heart failure, and other modalities can provide additional information about specific questions (especially tissue characterization), echocardiography is ...
Transthoracic echocardiography is a primary non-invasive modality for investigation of heart transplant recipients. It is a versatile tool which provides comprehensive information about cardiac structure and function. Echocardiographic examinations can be easily performed at the bedside and serially repeated without any patients discomfort. This review highlights the usefulness of Doppler echocardiography in the assessment of left ventricular and right ventricular systolic and diastolic function, of left ventricular mass, valvular heart disease, pulmonary arterial hypertension and pericardial effusion in heart transplant recipients. The main experiences performed by either standard Doppler echocardiography and new high-tech ultrasound technologies are summarised, pointing out advantages and limitations of the described techniques in diagnosing acute allograft rejection and cardiac graft vasculopathy. Despite the sustained efforts of echocardiographic technique in predicting the biopsy state,
Left ventricular systolic function does not correlate well with functional class in patients with dilated cardiomyopathy. To determine whether the correlation is better with Doppler indexes of left ventricular diastolic function, 34 patients with dilated cardiomyopathy (M-mode echocardiographic end-diastolic dimension greater than 60 mm, fractional shortening less than 25%, increased E point-septal separation) were studied. Patients were classified into two groups according to functional class. Group 1 consisted of 16 patients in New York Heart Association functional class I or II; group 2 included 18 patients in functional class III or IV. Left ventricular dimensions, fractional shortening, left ventricular mass, meridional end-systolic wall stress, peak early and late transmitral filling velocities and their ratio, isovolumetric relaxation period and time to peak filling rate were computed from pulsed wave Doppler and M-mode echocardiograms and calibrated carotid pulse tracings. Right heart ...
TY - JOUR. T1 - Using transesophageal echocardiography to manage critically ill patients. What role in hemodynamic instability, MI, embolic disease, trauma?. AU - Holmberg, Mark Jeffrey. AU - Mohiuddin, Syed M.. PY - 1995/4. Y1 - 1995/4. N2 - When transthoracic echocardiographic images are suboptimal, transesophageal echocardiography offers a new window for visualization of the heart and thoracic aorta. It can be performed at bedside in 15 to 20 minutes. Complications (emesis, hypoxemia, hypotension) are rare and easily reversed or averted by administration of naloxone or flumazenil. Indications include evaluation of hemodynamic instability, ventricular function, mitral regurgitation, ventricular septal defects, aneurysm, endocarditis, intracardiac sources of embolus, valve pathology, aortic dissection, intra-aortic debris, and trauma. Results can be analyzed immediately and used to guide further evaluation, medical therapy, or surgery.. AB - When transthoracic echocardiographic images are ...
Before antibiotics were discovered, infective endocarditis was almost uniformly fatal. Although the prognosis is now markedly improved, it remains a disease with considerable mortality and morbidity. Patients with abscesses are much less likely to be cured with medical therapy alone. Thus, the early detection of abscesses might be useful in leading to surgery before complications, such as congestive heart failure, develop. Transthoracic echocardiography is the standard method for diagnosing vegetations, but it is not very effective in diagnosing abscesses. Recently, transesophageal echocardiography has been documented to improve the diagnosis of vegetations. On the basis of this study, transesopha- geal echocardiography is also useful for diagnosing abscesses. Although the results of this study are acceptable on the basis of the sensitivity and specificity, the predictive values reported must be adjusted for local circumstances. As noted by the authors, the population studied was skewed. First, ...
Looking for online definition of sector echocardiography in the Medical Dictionary? sector echocardiography explanation free. What is sector echocardiography? Meaning of sector echocardiography medical term. What does sector echocardiography mean?
Three-dimensional echocardiography is the most recent fundamental advancement in echocardiography with a strong impact on almost all clinical and research applications of echocardiography.. After a very successful 1st edition, this book presents the fully revised 2nd edition. Accounting for the marked progress of real-time 3D echocardiography since the 1st edition it covers all clinically important aspects of this fascinating new technology, including a comprehensive explanation of its basic principles, practical aspects of clinical application, new recommendations in recent guidelines and detailed descriptions of specific uses in the broad spectrum of clinically important heart disease.. The book was written by a group of well-recognized international experts in the field, who have not only been involved in scientific and clinical evolution of 3D echocardiography since its beginnings but are also intensely involved in expert training courses. As a result, the clear focus of this book is on the ...
Three-dimensional echocardiography (3DE) enables an easier, accurate and reproducible interpretation of the complex cardiac anatomy, overcoming the intrinsic limitations of conventional echocardiography. The availability of unprecedented views of cardiac structures from any perspective in the beating heart provides valuable clinical information and new levels of confidence in diagnosing heart disease. One major advantage of 3DE is the improvement in the accuracy and reproducibility of chamber volume measurement by eliminating geometric assumptions and errors caused by foreshortened views. Another benefit of 3DE is the realistic en face views of heart valves, enabling a better appreciation of the severity and mechanisms of valve diseases in a unique, noninvasive manner.. In previous years, the Atlas of real-time three-dimensional echocardiography has been one of the most visited sections of the website of the European Association of Echocardiography. Since its launch in December 2008, it has been ...
TY - JOUR. T1 - Performance of two-dimensional Doppler echocardiography for the assessment of infarct size and left ventricular function in rats. AU - Nozawa, E.. AU - Takeuchi, Rosemeire. AU - Murad, N.. AU - Carvalho, A. C C. AU - Cravo, S. L D. AU - Campos, O.. AU - Tucci, P. J F. AU - Moises, V. A.. PY - 2006/5. Y1 - 2006/5. N2 - Although echocardiography has been used in rats, few studies have determined its efficacy for estimating myocardial infarct size. Our objective was to estimate the myocardial infarct size, and to evaluate anatomic and functional variables of the left ventricle. Myocardial infarction was produced in 43 female Wistar rats by ligature of the left coronary artery. Echocardiography was performed 5 weeks later to measure left ventricular diameter and transverse area (mean of 3 transverse planes), infarct size (percentage of the arc with infarct on 3 transverse planes), systolic function by the change in fractional area, and diastolic function by mitral inflow parameters. ...
This study provides further evidence that echocardiographically measured LV mass predicts adverse outcomes from hypertension. Age and echocardiographic LV hypertrophy independently predicted subsequent cardiovascular events. There were limitations to the study design and execution that may have influenced the results. First, the patients age range was wide, and the duration of hypertension at entry was variable, producing a rather diverse cohort. Second, the cohort consisted of volunteers for research studies and may not be representative of general populations. Third, patient and physician reporting of morbidity and causes of death may have been influenced by the knowledge of echocardiographic abnormalities. Fourth, the collection of outcome data was not preplanned and it is not stated how much of the telephone data was backed up by documentation from records. Does echocardiography add prognostic information to that provided by readily available and less expensive diagnostic methods? LV mass ...
Objectives To assess the repeatability of commonly employed transthoracic echocardiographic measurements in standing horses.. Design Thirteen healthy 3- to 4-year-old fit Standardbred geldings with a mean weight of 411 (SEM ± 10) kg were studied. The horses environment, feeding and management regimens were standardised. All measurements were performed by the same investigator at the same time every day for three consecutive days.. Procedures Standard transthoracic measurements were made on all horses. Each measurement was performed over three consecutive cardiac cycles on 1 day and all measurements were performed over 3 consecutive days. Summary statistics of each day were then compared using an analysis of variance with times as a repeated measures factor. Statistical significance was set at P , 0.05.. Results Many of the standard echocardiographic measurements used to derive quantitative and functional information about the equine heart have a low intra-observer variability.. Conclusions ...
TY - CHAP. T1 - Echocardiography in the Context of Other Cardiac Imaging Modalities. AU - Horgan, Stephen J.. AU - Uretsky, Seth. PY - 2019/1/1. Y1 - 2019/1/1. N2 - Echocardiography maintains a central role in cardiovascular assessment despite recent advances in multimodality imaging. Some of the advantages of echocardiography include portability, rapid availability, low cost, safety and excellent temporal resolution. This in combination with continued technological development is the reason why cardiac ultrasound is the imaging tool of first choice in almost all conditions bar the assessment of flow limiting coronary stenosis. Cardiac magnetic resonance imaging, coronary computed tomographic angiography, single photon emission computed tomography and positron emission tomography each have unique advantages. The strengths and weaknesses of the different imaging modalities are discussed in this chapter and their utility outlined in conjunction with echocardiography. The synergistic relationship ...
Heritage Valleys Heart & Vascular Centers in Beaver and Leetsdale have been granted an additional three-year term of accreditation by the Intersocietal Accreditation Commission (IAC) in Echocardiography in the areas of Adult Transthoracic and Adult Stress. The accreditation demonstrates the Heart & Vascular Centers ongoing commitment to providing quality patient care in echocardiography.. Echocardiography is used to assess different areas of the heart and can detect heart disease or signs of serious conditions. Heart disease is the leading cause of death in the United States and according to the American Heart Association, more than 2,150 Americans die each day from cardiovascular disease which amounts to about one every 40 seconds.. Early detection of life-threatening heart disorders and other diseases is possible through the use of echocardiography procedures, said Dr. Michael Malkowski, Medical Director, Echocardiography, Heritage Valley Heart & Vascular Center. We are proud to once ...
Fingerprint Dive into the research topics of Prognostic value of dipyridamole stress myocardial contrast echocardiography: comparison with single photon emission computed tomography. Together they form a unique fingerprint. ...
Dear colleague:. I invite you to attend attend the 20th Annual Canadian Society of Echocardiography Weekend from April 12- 14, 2018 at the Toronto Marriott Downtown Eaton Centre Hotel. We have developed an exciting educational program for you celebrating our 20th anniversary with a special look at Echocardiography Past, Present and Future on Thursday evening. This will be followed by two case-based packed days of learning and interaction with colleagues, friends and experts from across Canada.. The Annual Canadian Echo Weekend is designed around your needs and requests over the past nineteen meetings. We will focus on common clinical problems encountered in your practice and the important role that echocardiography plays in diagnosis and patient management. Novel and evolving technologies to enhance your diagnostic capabilities and improve patient care will be highlighted.. We are excited to bring to you this year THREE different ticketed hands-on workshops 3D Echocardiography Made Simple!, ...
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This study was carried out to determine the cardiac reference parameters of Karabash dogs, a breed specific to Turkey, using M-mode and 2-D echocardiography techniques.. The material of the study comprised 25 male and 25 female Karabash dogs aged between 2 and 6 and weighing between 30 and 51 kg. The dogs were divided into 5 groups according to their body weight (BW) which were group I (26-30 kg), group II (31-35 kg), group III (36-40 kg), group IV (41-45 kg.) and group V (46-51 kg); and into 4 groups according to their body surface areas (BSA) which were group I (0.70-0.79m2), group II (0.80-0.89 m2), group III (0.90-0.99 m2) and group IV (1.0-1.1 m2). The dogs were examined in 2 groups according to their sex. The M-mode echocardiographic measurements were taken from the longitudinal axis of the 4th and 6th right intercostal space under the guidance of 2-D echocardiography. Measurement of the ventricular dimensions were made below the mitral valve at the chordal level; mitral valve measurements ...
Introduction: Stress echocardiography is a safe and cost-effective method of evaluating the patients with suspected coronary artery disease (CAD). However, the risk factors of an adverse cardiovascular event after a normal exercise (ESE) or dobutamine (DSE) stress echocardiography are not well established. Methods: A cohort of 705 patients without previous history of CAD and a negative ESE/DSE was studied. All studies were performed in a high-volume echocardiologic laboratory and interpreted by two experienced echocardiography-trained cardiologists. Patients with inconclusive studies and those with an evidence of myocardial ischemia were excluded. Demographic, echocardiographic and hemodynamic findings were recorded. Patients were followed for at least 2 years. Independent predictors of major adverse cardiovascular events (MACE) were determined by regression analysis. Results: During a period of 55.7±17.5 months, MACE occurred in 35 (5.0%) of patients. Negative predictive value (NPV) of DSE was 89.2%
Background: Patent ductus arteriosus (PDA) closure results in a sudden drop in left ventricular (LV) preload, and this may affect the LV functions. Aim: The aim was to evaluate the immediate- and short-term changes in LV functions by speckle tracking echocardiography (STE) post percutaneous PDA closure. Materials and Methods: The study included 45 patients with PDA who were referred for PDA trans-catheter closure. All the patients included in the study underwent full echocardiographic examination and speckle tracking analysis before PDA closure, immediately after closure, and 1 month after the PDA closure. Results: There was no statistically significant change in LV functions by two-dimensional transthoracic echocardiography; the LV end-diastolic volume (EDV) decreased significantly in the immediate follow-up from 41.608 ± 25.8846 ml before duct closure to 36.317 ± 21.6945 ml. The drop in the LV EDV continued in the 1-month follow-up. The LV end-systolic volume decreased as well, however it ...
Practical Perioperative Transoesophageal Echocardiography, 3rd edition, is a concise guide to the use of transoesophageal echocardiography (TOE) for patients undergoing cardiac surgical and interventional cardiological procedures. The text is aimed at anaesthetists and cardiologists, particularly those in training and those preparing for examinations. Three-dimensional imaging is integrated throughout the text. New to the third edition are chapters on mitral valve repair, aortic valve repair, TOE in the interventional catheter laboratory, and TOE assessment of pericardial disease. The first three chapters address the fundamentals of ultrasound imaging: physical principles, artefacts, image optimization, and quantitative echocardiography. Chapters 4 and 5 cover standard views, anatomical variants, and cardiac masses. Chapters 6 and 7 address left ventricular systolic and diastolic function, respectively. The subsequent eight chapters form the core of the book and deal with the cardiac valves and ...
Definition of echocardiography, transesophageal in the Definitions.net dictionary. Meaning of echocardiography, transesophageal. What does echocardiography, transesophageal mean? Information and translations of echocardiography, transesophageal in the most comprehensive dictionary definitions resource on the web.
While the Apical four-chamber view depicts the left ventricular lateral and septal walls, the apical two-chamber view isolates the anterior and inferior walls. Particular effort should be made to image as much of the endocardial border as possible in order to accurately assess left ventricular wall motion, myocardial thickness and chamber volume.. Imaging the apical two-chamber view is generally easier than the apical four-chamber view because the sector axis is more parallel to the axis of the intercostal space where the transducer is placed. Respiratory maneuvers, (including hyper-inspiration or expiration with suspension where the image is clearest), can make a dramatic improvement when image quality is sub-optimal.. Because the left ventricular apex tends to curve posteriorly, the two-chamber view depicts the true left ventricular apex more easily than the four-chamber view and can help determine whether or not the four-chamber view was foreshortened. The apical two-chamber view can be ...
The present study was designed to determine whether the wall thickening seen in acute myocarditis is caused by interstitial edema. The study group comprised 25 patients (idiopathic myocarditis, 17; eosinophilic myocarditis, 8) in whom acute myocardit
To determine whether cardiac changes provoked by the V146M variant of ADIPOR1 are able to be reversed by silencing mTOR, we treated ADIPOR1 transgenic mice with rapamycin. Rapamycin has been shown to ameliorate myocyte hypertrophy and attenuate cardiac remodeling and dysfunction in response to mechanical stress or cardiac injury (17-19). Rapamycin treatment effectively reversed Cre-V146M-induced cardiac functional deterioration. LV function and dimensions were measured by serial echocardiography at baseline and following vehicle or rapamycin treatment for 30 days; rapamycin (2 mg/kg), a dose equivalent to that used in humans based on body surface area, was administered orally each day (20). Cardiac contractility, as assessed by fractional shortening (FS) (Cre-V146M-Veh versus Cre-V146M-Rapa: FS%, 39.68 ± 8.29 versus 63.46 ± 2.23; P , 0.0001) (Fig. 6, A and B, and table S1F) and the ejection fraction (EF) (Cre-V146M-Veh versus Cre-V146M-Rapa: EF%, 77.09 ± 8.45 versus 93.68 ± 2.88; P , 0.01) ...
Left ventricular and central venous pressures, echocardiographic assessment, and direct postmortem cardiac examination were used to verify that heart failure had developed 16 wk after left coronary arterial ligation in our test rats. Our findings showed an increased left ventricular end-diastolic pressure and an increased central venous pressure, both of which are signs of heart failure. Echocardiography is commonly used as a noninvasive method to assess cardiac function during heart disease (5, 7, 12, 39). Our 2D and 2D-guided M-mode images demonstrated an increased left ventricular internal diameter, endocardial area, and left ventricular volume in the heart failure rats compared with the control rats. Fractional shortening and ejection fraction were significantly lower in heart failure rats. Postmortem measurement showed that left ventricular mass was increased in the heart failure rats. This occurred simultaneously with chamber enlargement, but with relatively normal wall thickness, which ...