Motion pictures of the passage of contrast medium through blood vessels.
Radiography of the heart and great vessels after injection of a contrast medium.
The volume of the HEART, usually relating to the volume of BLOOD contained within it at various periods of the cardiac cycle. The amount of blood ejected from a ventricle at each beat is STROKE VOLUME.
The lower right and left chambers of the heart. The right ventricle pumps venous BLOOD into the LUNGS and the left ventricle pumps oxygenated blood into the systemic arterial circulation.
Procedures in which placement of CARDIAC CATHETERS is performed for therapeutic or diagnostic procedures.
The amount of BLOOD pumped out of the HEART per beat, not to be confused with cardiac output (volume/time). It is calculated as the difference between the end-diastolic volume and the end-systolic volume.
Pathological processes of CORONARY ARTERIES that may derive from a congenital abnormality, atherosclerotic, or non-atherosclerotic cause.
Controlled physical activity which is performed in order to allow assessment of physiological functions, particularly cardiovascular and pulmonary, but also aerobic capacity. Maximal (most intense) exercise is usually required but submaximal exercise is also used.
An imbalance between myocardial functional requirements and the capacity of the CORONARY VESSELS to supply sufficient blood flow. It is a form of MYOCARDIAL ISCHEMIA (insufficient blood supply to the heart muscle) caused by a decreased capacity of the coronary vessels.
Surgical therapy of ischemic coronary artery disease achieved by grafting a section of saphenous vein, internal mammary artery, or other substitute between the aorta and the obstructed coronary artery distal to the obstructive lesion.
Radiography of the vascular system of the heart muscle after injection of a contrast medium.
The hemodynamic and electrophysiological action of the left HEART VENTRICLE. Its measurement is an important aspect of the clinical evaluation of patients with heart disease to determine the effects of the disease on cardiac performance.
The valve between the left ventricle and the ascending aorta which prevents backflow into the left ventricle.
A pathological constriction that can occur above (supravalvular stenosis), below (subvalvular stenosis), or at the AORTIC VALVE. It is characterized by restricted outflow from the LEFT VENTRICLE into the AORTA.
Pathological condition characterized by the backflow of blood from the ASCENDING AORTA back into the LEFT VENTRICLE, leading to regurgitation. It is caused by diseases of the AORTIC VALVE or its surrounding tissue (aortic root).
Surgical insertion of synthetic material to repair injured or diseased heart valves.
A device that substitutes for a heart valve. It may be composed of biological material (BIOPROSTHESIS) and/or synthetic material.
The valve between the left atrium and left ventricle of the heart.
A prediction of the probable outcome of a disease based on a individual's condition and the usual course of the disease as seen in similar situations.
An acute, febrile, mucocutaneous condition accompanied by swelling of cervical lymph nodes in infants and young children. The principal symptoms are fever, congestion of the ocular conjunctivae, reddening of the lips and oral cavity, protuberance of tongue papillae, and edema or erythema of the extremities.
Abnormal balloon- or sac-like dilatation in the wall of CORONARY VESSELS. Most coronary aneurysms are due to CORONARY ATHEROSCLEROSIS, and the rest are due to inflammatory diseases, such as KAWASAKI DISEASE.
Pathological outpouching or sac-like dilatation in the wall of any blood vessel (ARTERIES or VEINS) or the heart (HEART ANEURYSM). It indicates a thin and weakened area in the wall which may later rupture. Aneurysms are classified by location, etiology, or other characteristics.
The veins and arteries of the HEART.
Abnormal outpouching in the wall of intracranial blood vessels. Most common are the saccular (berry) aneurysms located at branch points in CIRCLE OF WILLIS at the base of the brain. Vessel rupture results in SUBARACHNOID HEMORRHAGE or INTRACRANIAL HEMORRHAGES. Giant aneurysms (>2.5 cm in diameter) may compress adjacent structures, including the OCULOMOTOR NERVE. (From Adams et al., Principles of Neurology, 6th ed, p841)
Compression of the heart by accumulated fluid (PERICARDIAL EFFUSION) or blood (HEMOPERICARDIUM) in the PERICARDIUM surrounding the heart. The affected cardiac functions and CARDIAC OUTPUT can range from minimal to total hemodynamic collapse.
Single-chain polypeptides of about 65 amino acids (7 kDa) from LEECHES that have a neutral hydrophobic N terminus, an acidic hydrophilic C terminus, and a compact, hydrophobic core region. Recombinant hirudins lack tyr-63 sulfation and are referred to as 'desulfato-hirudins'. They form a stable non-covalent complex with ALPHA-THROMBIN, thereby abolishing its ability to cleave FIBRINOGEN.
Endogenous factors and drugs that directly inhibit the action of THROMBIN, usually by blocking its enzymatic activity. They are distinguished from INDIRECT THROMBIN INHIBITORS, such as HEPARIN, which act by enhancing the inhibitory effects of antithrombins.
A highly acidic mucopolysaccharide formed of equal parts of sulfated D-glucosamine and D-glucuronic acid with sulfaminic bridges. The molecular weight ranges from six to twenty thousand. Heparin occurs in and is obtained from liver, lung, mast cells, etc., of vertebrates. Its function is unknown, but it is used to prevent blood clotting in vivo and vitro, in the form of many different salts.
Dilation of an occluded coronary artery (or arteries) by means of a balloon catheter to restore myocardial blood supply.
Puncture and aspiration of fluid from the PERICARDIUM.
Agents that prevent clotting.
Exclusive legal rights or privileges applied to inventions, plants, etc.
Passage of food (sometimes in the form of a test meal) through the gastrointestinal tract as measured in minutes or hours. The rate of passage through the intestine is an indicator of small bowel function.
Organs or parts of organs surgically formed from nearby tissue to function as substitutes for diseased or surgically removed tissue.
Devices that provide support for tubular structures that are being anastomosed or for body cavities during skin grafting.
A novel composition, device, or process, independently conceived de novo or derived from a pre-existing model.
Property, such as patents, trademarks, and copyright, that results from creative effort. The Patent and Copyright Clause (Art. 1, Sec. 8, cl. 8) of the United States Constitution provides for promoting the progress of science and useful arts by securing for limited times to authors and inventors, the exclusive right to their respective writings and discoveries. (From Black's Law Dictionary, 5th ed, p1014)
Cystic mass containing lymph from diseased lymphatic channels or following surgical trauma or other injury.
The gradual destruction of a metal or alloy due to oxidation or action of a chemical agent. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
A strong oxidizing agent used in aqueous solution as a ripening agent, bleach, and topical anti-infective. It is relatively unstable and solutions deteriorate over time unless stabilized by the addition of acetanilide or similar organic materials.
Stainless steel. A steel containing Ni, Cr, or both. It does not tarnish on exposure and is used in corrosive environments. (Grant & Hack's Chemical Dictionary, 5th ed)
Electron-accepting molecules in chemical reactions in which electrons are transferred from one molecule to another (OXIDATION-REDUCTION).
The use of a chemical oxidizing agent to whiten TEETH. In some procedures the oxidation process is activated by the use of heat or light.
A tough, malleable, iron-based alloy containing up to, but no more than, two percent carbon and often other metals. It is used in medicine and dentistry in implants and instrumentation.
A mixture of metallic elements or compounds with other metallic or metalloid elements in varying proportions for use in restorative or prosthetic dentistry.
A verocytotoxin-producing serogroup belonging to the O subfamily of Escherichia coli which has been shown to cause severe food-borne disease. A strain from this serogroup, serotype H7, which produces SHIGA TOXINS, has been linked to human disease outbreaks resulting from contamination of foods by E. coli O157 from bovine origin.
One of the catecholamine NEUROTRANSMITTERS in the brain. It is derived from TYROSINE and is the precursor to NOREPINEPHRINE and EPINEPHRINE. Dopamine is a major transmitter in the extrapyramidal system of the brain, and important in regulating movement. A family of receptors (RECEPTORS, DOPAMINE) mediate its action.
A family of cellular proteins that mediate the correct assembly or disassembly of polypeptides and their associated ligands. Although they take part in the assembly process, molecular chaperones are not components of the final structures.
An enzyme that transfers methyl groups from O(6)-methylguanine, and other methylated moieties of DNA, to a cysteine residue in itself, thus repairing alkylated DNA in a single-step reaction. EC 2.1.1.63.
A serotype of Salmonella enterica that is a frequent agent of Salmonella gastroenteritis in humans. It also causes PARATYPHOID FEVER.
Proteins found in any species of bacterium.
Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories.

Investigation of the theory and mechanism of the origin of the second heart sound. (1/230)

To investigate further the origin of the second heart sound we studied human subjects, dogs, and a model in vitro of the cardiovascular system. Intra-arterial sound, pressure, and, where possible, flow and high speed cine (2,000 frames/sec) were utilized. The closure sound of the semilunar valves was of higher amplitude in be ventricles than in their respective arterial cavities. The direction of inscription of the main components of intra-arterial sound were opposite in direction to the components of intraventricular sound. Notches, representative of pressure increments, were noted on the ventricular pressure tracings and were coincident with the components of sound. The amplitude of the closure sound varied with diastolic pressure, but remained unchanged with augmentation of forward and retrograde aortic flow. Cines showed second sound to begin after complete valvular closure, and average leaflet closure rate was constant regardless of pressure. Hence, the semilunar valves, when closed, act as an elastic membrane and, when set into motion, generate compression and expansion of the blood, producing transient pressure changes indicative of sound. The magnitude of the initial stretch is related to the differential pressure between the arterial and ventricular chambers. Sound transients which follow the major components of the second sound appear to be caused by the continuing stretch and recoil of the leaflets. Clinically unexplained findings such as the reduced or absent second sound in calcific aortic stenosis and its paradoxical presence in congenital aortic stenosis may be explained by those observations.  (+info)

Chronic radiodermatitis following cardiac catheterisation: a report of two cases and a brief review of the literature. (2/230)

Cardiac angiography produces one of the highest radiation exposures of any commonly used diagnostic x ray procedure. Recently, serious radiation induced skin injuries have been reported after repeated therapeutic interventional procedures using prolonged fluoroscopic imaging. Two male patients, aged 62 and 71 years, in whom chronic radiodermatitis developed one to two years after two consecutive cardiac catheterisation procedures are reported. Both patients had undergone lengthy procedures using prolonged fluoroscopic guidance in a limited number of projections. The resulting skin lesions were preceded, in one case, by an acute erythema and took the form of a delayed pigmented telangiectatic, indurated, or ulcerated plaque in the upper back or below the axilla whose site corresponded to the location of the x ray tube during cardiac catheterisation. Cutaneous side effects of radiation exposure result from direct damage to the irradiated tissue and have known thresholds. The diagnosis of radiation induced skin injury relies essentially on clinical and histopathological findings, location of skin lesions, and careful medical history. Interventional cardiologists should be aware of this complication, because chronic radiodermatitis may result in painful and resistant ulceration and eventually in squamous cell carcinoma.  (+info)

Spontaneous late improvement of myocardial viability in the chronic infarct zone is possible, depending on persistent TIMI 3 flow and a low grade stenosis of the infarct artery. (3/230)

OBJECTIVE: In the chronic phase of myocardial infarction, the relation between myocardial recovery and infarct related artery status remains unclear. The spontaneous changes in rest-redistribution thallium defect size were prospectively studied over six months in 52 patients with chronic Q wave myocardial infarction. DESIGN: Changes in rest thallium defect size, thallium uptake in the infarct area, and radionuclide left ventricular ejection fraction were compared to the quantitative coronary angiogram data. Two groups of patients were considered: patients with a percentage of stenosis below 100% (group 1, n = 31); and patients with an occluded artery (group 2, n = 21). RESULTS: In the overall population, the mean (SD) defect size decreased from 28.2 (17.2)% to 24.9 (19.3)% of the whole myocardium (p = 0.01), while, in this area, the thallium uptake increased from 62.9 (13.7)% to 66. 9 (15.6)% (p < 0.001). At the time of inclusion, the defect size, thallium uptake, and ejection fraction were similar in both groups. In group 1 patients only, the reduction in defect size correlated with the improvement in ejection fraction (r = 0.41, p = 0.02) and was related to the percentage of coronary artery stenosis. TIMI 3 patients reduced the defect size while other patients increased this defect (-5.1 (7.0)% v +11.0 (14.4)%, p < 0.001). In contrast, no significant relations were found in group 2 patients. CONCLUSION: Late spontaneous recovery in thallium defect can occur in patients with a patent infarct related artery, depending on the TIMI flow grade and a low grade stenosis of the infarct related artery, and is associated with functional improvement.  (+info)

Relationship between TIMI frame count and clinical outcomes after thrombolytic administration. Thrombolysis In Myocardial Infarction (TIMI) Study Group. (4/230)

BACKGROUND: The corrected TIMI frame count (CTFC) is the number of cine frames required for dye to first reach standardized distal coronary landmarks, and it is an objective and quantitative index of coronary blood flow. METHODS AND RESULTS: The CTFC was measured in 1248 patients in the TIMI 4, 10A, and 10B trials, and its relationship to clinical outcomes was examined. Patients who died in the hospital had a higher CTFC (ie, slower flow) than survivors (69. 6+/-35.4 [n=53] versus 49.5+/-32.3 [n=1195]; P=0.0003). Likewise, patients who died by 30 to 42 days had higher CTFCs than survivors (66.2+/-36.4 [n=57] versus 49.9+/-32.1 [n=1059]; P=0.006). In a multivariate model that excluded TIMI flow grades, the 90-minute CTFC was an independent predictor of in-hospital mortality (OR=1.21 per 10-frame rise [95% CI, 1.1 to 1.3], an approximately 0.7% increase in absolute mortality for every 10-frame rise; P<0.001) even when other significant correlates of mortality (age, heart rate, anterior myocardial infarction, and female sex) were adjusted for in the model. The CTFC identified a subgroup of patients with TIMI grade 3 flow who were at a particularly low risk of adverse outcomes. The risk of in-hospital mortality increased in a stepwise fashion from 0.0% (n=41) in patients with a 90-minute CTFC that was faster than the 95% CI for normal flow (0 to 13 frames, hyperemia, TIMI grade 4 flow), to 2.7% (n=18 of 658 patients) in patients with a CTFC of 14 to 40 (a CTFC of 40 has previously been identified as the cutpoint for distinguishing TIMI grade 3 flow), to 6.4% (35/549) in patients with a CTFC >40 (P=0.003). Although the risk of death, recurrent myocardial infarction, shock, congestive heart failure, or left ventricular ejection fraction 20 to +info)

Prognostication in 3-vessel coronary artery disease based on left ventricular ejection fraction during exercise : influence of coronary artery bypass grafting. (5/230)

BACKGROUND: Previous data indicate that left ventricular ejection fraction (LVEF) provides prognostic information among patients with coronary artery disease (CAD), but the value of such testing specifically for defining benefits of coronary artery bypass grafting (CABG) may relate to severity of exercise-inducible ischemia measured noninvasively before surgery. METHODS AND RESULTS: To determine the independent prognostic importance of preoperative ischemia severity for predicting outcomes of CABG among patients with extensive CAD, we monitored 167 stable patients with angiographically documented 3-vessel CAD (average follow-up of 9 years in event-free patients) who previously had undergone rest and exercise radionuclide cineangiography. Their course was correlated with data obtained during initial radionuclide testing, coronary arteriography, and clinical evaluation at study entry. Fifty-two patients received medical treatment only, and 115 underwent CABG (44 early [+info)

Right ventricular diastolic function in patients with hypertrophic cardiomyopathy--an invasive study. (6/230)

To assess diastolic function of the right ventricle (RV) in patients with hypertrophic cardiomyopathy (HCM), biplane RV angiograms and RV pressures were analyzed in 19 HCM patients and in 13 normal subjects. RV and left ventricle (LV) pressures were measured using catheter-tip manometers. RV volumes were obtained from frame-by-frame tracings of angiograms. Ventricular relaxation was assessed by the time constant of isovolumic pressure decay (T). The peak filling rate (PFR) and the time to PFR (TPFR) were used as parameters of early diastolic filling, and the right atrial contribution to RV filling (%AF) was used as a parameter of late diastolic filling. The T for the RV was significantly prolonged in HCM patients. However, there was no significant correlation between the T for the RV and LV, nor did the T for the RV correlate with the RV ejection fraction or interventricular septal wall thickness. The TPFR, but not PFR, was significantly greater in HCM patients, and the %AF tended to be increased in HCM, but not significantly. The RV diastolic pressure-volume relations in the HCM patients shifted upward. In conclusion, impaired isovolumic relaxation and delayed diastolic filling and decreased diastolic distensibility are present in the RV of HCM patients.  (+info)

Prediction of functional recovery of viable myocardium after delayed revascularization in postinfarction patients: accuracy of dobutamine stress echocardiography and influence of long-term vessel patency. (7/230)

OBJECTIVES: We sought to evaluate dobutamine stress echocardiography (DSE) for predicting recovery of viable myocardium after revascularization with cineangiography as a gold standard for left ventricular (LV) function. We studied the influence of late vessel reocclusion on regional LV function. BACKGROUND: Dobutamine stress echocardiography is a well established evaluation method for myocardial viability assessment. In previous studies the reference method for assessing LV recovery was echocardiography, long-term vessel patency has not been systematically addressed. METHODS: Sixty-eight patients with a first acute myocardial infarction (AMI) and residual stenosis of the infarct related artery (IRA) underwent DSE (mean +/- standard deviation) 21 +/- 12 days after AMI to evaluate myocardial viability. Revascularization of the IRA was performed in 54 patients by angioplasty (n = 43) or bypass grafting (n = 11). Coronary angiography and LV cineangiography were repeated at four months to assess LV function and IRA patency. RESULTS: Sensitivity and specificity of DSE for predicting myocardial recovery after revascularization were 83% and 82%. In the case of late IRA patency, specificity increased to 95%, whereas sensitivity remained unchanged. In the 16 patients with myocardial viability and late IRA patency, echocardiographic wall motion score index decreased after revascularization from 1.83 +/- 0.15 to 1.36 +/- 0.17 (p = 0.0001), and left ventricular ejection fraction (LVEF) increased from 0.52 +/- 0.06 to 0.57 +/- 0.06 (p = 0.0004), whereas in five patients, reocclusion of the IRA prevented improvement of segmental or global LV function despite initially viable myocardium. CONCLUSIONS: Dobutamine stress echocardiography is reliable to predict recovery of viable myocardium after revascularization in postinfarction patients. Late reocclusion of the IRA may prevent LV recovery and influence the accuracy of DSE.  (+info)

Effect of potential confounding factors on the thrombolysis in myocardial infarction (TIMI) trial frame count and its reproducibility. (8/230)

BACKGROUND: The potential factors that introduce variability into TIMI frame count (TFC) have not been systematically investigated. The goal of this study was to determine if nitrate use, dye injection rate, catheter size, the phase of the cardiac cycle in which dye is injected, or heart rate affect the TFC and to investigate the reproducibility of the TFC. METHODS AND RESULTS: The dye injection rate was increased 1 mL/s, and angiography was repeated. A coronary angiogram was taken first with an 8F catheter and then with a 6F catheter. After taking angiograms, intracoronary nitrate was given to the patient, and the second angiography was performed. Basal heart rate was increased 20 beats/min, and angiography was repeated. Dye injection was performed at the beginning of systole and diastole. The TFC was not significantly changed by increasing the dye injection rate (P=0.467) or by changing catheter size (P=0.693). Nitrate administration significantly increased the TFC from 26.4+/-11.9 to 32.8+/-13.3 frames (P<0.001). Dye injection at the beginning of diastole significantly decreased the TFC from 30.1+/-8.8 to 24.4+/-7.9 frames (P<0.001) for the left coronary artery and from 24.16+/-4.49 to 21. 24+/-4.45 frames (P<0.001) for the right coronary artery. Increasing heart rate significantly decreased the TFC from 30.4+/-6.1 to 25. 3+/-7.2 frames (P<0.001). Intraobserver and interobserver reproducibility of the TFC was good (mean difference, 1.33+/-1.24 and 2.57+/-1.72 frames, respectively). CONCLUSIONS: Nitrate use, heart rate, and the phase of the cardiac cycle in which dye is injected had significant effects on the TFC. Therefore, studies comparing TFC need to consider these factors, and the use of nitrates should be either standardized or randomized.  (+info)

A method for detecting left ventricular hypokinesis is proposed. It involves superimposition of left ventricular silhouettes traced from 30 degree right anterior oblique cineangiograms, correcting for thoracic cage motion, descent of the aortic valve and rotation of the apex. Normal values for the percent of systolic motion of seven endocardial segments have been established from measurements in 20 patients, permitting a statistical definition of hypokinesis. The use of this quantitative method has been compared with visual inspection of ventriculograms (qualitative method), resulting in differences in definition of hypokinetic segments by the two methods in 13 of 16 patients with coronary heart disease. When the quantitative method was used, only one hypokinetic segment was found which did not correspond to an obstructive coronary lesion while six such segments were defined using the qualitative method. In four patients segments thought to be hypokinetic (qualitative method) appeared to be ...
Few data are available regarding radiation exposure to children during cardiac catheterization. Using lithium fluoride thermoluminescent dosimeters, radiation exposure was measured during precatheterization chest roentgenography, fluoroscopy (hemodynamic assessment phase of catheterization) and cineangiography in 30 infants and children, ages 3 days to 21 years. Dosimeters were placed over the eyes, thyroid, anterior chest, posterior chest, anterior abdomen, posterior abdomen and gonads. Average absorbed chest doses were 24.5 mR during chest roentgenography, 5810 mR during catheterization fluoroscopy and 1592 mR during cineangiography. During the complete catheterization, average doses were 26 mR to the eyes, 431 mR to the thyroid area, 150 mR to the abdomen and 11 mR to the gonads. Radiation exposure during pediatric cardiac catheterization is low to the eyes and gonads but high to the chest and thyroid area. To decrease radiation dosage we suggest (1) low pulse-rate fluoroscopy; (2) ...
Quantitation of coronary luminal diameter with a 20 MHz mechanically rotating intravascular ultrasound (IVUS) catheter was compared with orthogonal-view cineangiography by use of a semiautomated edge-detection algorithm in 48 patients undergoing coronary angioplasty. Quantitative comparison of 196 matched segments was attempted, but in only 174 (88.8%) was a direct comparison of the two techniques possible. In angiographically normal coronary arteries (46 segments) the correlation between the values obtained by quantitative coronary angiography (QCA) and those achieved by IVUS was excellent (r = 0.92, p , 0.0001). For mild stenoses (80 segments) the correlation coefficient was only fair (r = 0.467, p , 0.001). After percutaneous transluminal coronary angioplasty the correlation coefficient between IVUS and QCA data (48 segments) was very weak (r = 0.282, p , 0.05). In conclusion, coronary IVUS is feasible and safe and even for a limited range of coronary arterial narrowing, significant ...
A system for the production of a four dimensional (moving three dimensional) human epicardial left ventriculogram, modelled and highlighted to show regional wall motion changes, is described. The moving image is derived by fitting a surface to the three dimensional coordinates of coronary artery bifurcations. These are determined by analysis of digitised biplane coronary cineangiograms. This image system not only provides a unique 3-D view of left ventricular activity but might also provide measures of cardiac dynamics such as, stroke volume and velocity of wall movement. The system is not fully automated although operator interaction may be minimised. Further work on vessel tracking systems is required before full automation is possible ...
The aim of the study was to determine the diagnostic value of lipoprotein (a) (Lp (a)) and its indices as markers of significant coronary artery (CA) - umj.com.ua
A preferred embodiment of this invention is a stent that is coated with an anti-restenosis drug that is selected from the group that includes, Alkeran, Cytoxan, Leukeran, Cis-platinum, BiCNU, Adriamycin, Doxorubicin, Cerubidine, Idamycin, Mithracin, Mutamycin, Fluorouracil, Methotrexate, Thoguanine, Toxotere, Etoposide, Vincristine, Irinotecan, Hycamptin, Matulane, Vumon, Hexalin, Hydroxyurea, Gemzar, Oncovin, Etophophos, tacrolimus (FK506), and the following analogs of sirolimus: SDZ-RAD, CCI-779, 7-epi-rapamycin, 7-thiomethyl-rapamycin, 7-epi-trimethoxyphenyl-rapamycin, 7-epi-thiomethyl-rapamycin, 7-demethoxy-rapamycin, 32-demethoxy, 2-desmethyl and proline.
TY - JOUR. T1 - Correlation between calcific aortic stenosis diagnosed by two‐dimensional echocardiography and cardiac catheterization. AU - Nair, C. K.. AU - Aronow, W. S.. AU - Sketch, M. H.. AU - Mohiuddin, S. M.. AU - Stokke, K.. AU - Ryschon, K.. PY - 1984/1/1. Y1 - 1984/1/1. N2 - This retrospective study correlates the severity of calcific aortic stenosis determined by two-dimensional (2-D) echocardiography with the aortic valve area determined by catheterization in 57 patients. Aortic valve leaflet calcification was diagnosed by cineangiography in 50 (88%) of 57 patients and by 2-D echo in 57 (100%) of 57 patients (p. AB - This retrospective study correlates the severity of calcific aortic stenosis determined by two-dimensional (2-D) echocardiography with the aortic valve area determined by catheterization in 57 patients. Aortic valve leaflet calcification was diagnosed by cineangiography in 50 (88%) of 57 patients and by 2-D echo in 57 (100%) of 57 patients (p. UR - ...
The extent of collateral circulation in 46 patients who had intracoronary thrombolysis within six hours of the onset of acute myocardial infarction was evaluated. Patients who had had a previous myocardial infarction (4 cases) or who had spontaneously recanalized infarct related coronary arteries (5 cases) were excluded from the analysis. Collateral development was graded during coronary cineangiography according to the extent of opacification of the collateral and epicardial arteries distal to the site of occlusion (collateral index 0 to 3). Angina was considered to be present before myocardial infarction if it had occurred more than one week before acute myocardial infarction. Collateral channels were visible in only two of 19 patients without angina before infarction and nine of the 18 patients with angina before infarction. The prevalence of angina and the collateral index were not significantly influenced by the extent of coronary vessel disease. It is concluded that myocardial ischaemia is ...
TY - JOUR. T1 - Mechanisms of angioplasty in hemodialysis fistula stenoses evaluated by intravascular ultrasound. AU - Davidson, Charles J.. AU - Newman, Glenn E.. AU - Sheikh, Khalid H.. AU - Kisslo, Katherine. AU - Stack, Richard S.. AU - Schwab, Steve J.. PY - 1991/7/1. Y1 - 1991/7/1. N2 - Mechanisms of angioplasty in hemodialysis fistula stenoses evaluated by travascular ultrasound. Quantification of luminal dimensions and the mechanisms by which angioplasty (PTA) corrects non-atheroma venous stula stenoses have been poorly studied. In 38 consecutive percutaeous balloon angioplasties of hemodialysis fistula stenoses, catheterbased, mechanically-rotated intravascular ultrasound (IVUS) images were obtained along with cineangiography. Images from 24 brachial vein, 11 central vein, 2 graft anastomoses, and 1 brachial artery were quantitatively and qualitatively evaluated. Semiautomated quantitative angiographic stenosis was 64 ± 13% pre-PTA and reduced to 36 ± 19% post-PTA (P , 0.001). ...
A 76-year-old woman underwent aortic valve replacement with a 23 mm Carpentier Edwards bioprosthesis for aortic stenosis. Preoperative coronary angiograms were normal. Within three months she developed exertional angina. A multislice computed tomographic (CT) angiogram indicated that part of the valve stent encroached upon the right coronary ostium (panel A, compared to … ...
To determine if patterns of ST depression or elevation during exercise testing provide reliable information about the location of an underlying coronary lesion, we studied 452 consecutive patients with one-vessel disease who underwent treadmill testing. Exercise ST changes were classified as elevation or depression and by lead groups involved. The ST depression occurred most commonly in leads V5 or V6 regardless of which coronary artery was involved. In contrast, anterior ST elevation indicated left anterior descending coronary disease in 93% of cases, and inferior ST elevation indicated a lesion in or proximal to the posterior descending artery in 86% of cases. Furthermore, anterior ST elevation in leads without diagnostic Q waves usually indicated a high-grade, often proximal, left anterior descending stenosis, whereas anterior ST elevation in leads with Q waves usually indicated a totally occluded left anterior descending coronary artery. Thus, ST elevation during exercise testing, although ...
TIMI frame count is an alternative to the TIMI flow. Unlike TIMI flow, it offers a quantitative assessment of coronary artery blood flow. TIMI frame count is expressed as the number of frames required for dye to reach a standardized distal landmark in a coronary artery.
The Cardiac Catheterization Laboratory at Ocean is an outpatient facility for high-risk, elective, cardiac diagnostic procedures. It is one of the areas leading, state-of-the-art facilities, utilizing the latest equipment and technology. The labs cardiac imaging system has the capability to instantly transmit digital data and images to other Meridian hospitals and physicians offices.. Cardiac catheterization is the diagnostic tool which enables physicians to identify blockages in the blood vessels (coronary artery) that supply the heart. Additionally it is used to detect other heart-related diseases such as valve disease. During a cardiac catheterization procedure, digital X-ray images are taken of all the coronary arteries in the heart while other images are acquired that measure and show how hard the heart muscle is pumping. This is typically done by inserting thin plastic tubes (catheters) into the femoral artery (groin), but it may also be performed using your arm. Once the catheters ...
UPDATED) The TriGUARD 3 cerebral embolic protection device (Keystone Heart), designed to cover all three cerebral vessels during transcatheter heart procedures, is safe for use during transfemoral TAVR, according to the findings of the REFLECT II trial. But it remains unclear whether it improves patient outcomes.. The primary safety endpoint was a VARC-2-defined composite of events at 30 days-all-cause mortality, all stroke, life-threatening or disabling bleeding, stage 2 or 3 acute kidney injury, coronary artery obstruction requiring intervention, major vascular complications, and valve-related dysfunction requiring a repeat procedure. The observed rate of 15.9% (with a standard deviation of 22.5%) came in under 34.4%, the performance goal based on prior trials (P = 0.0001 for noninferiority), according to Jeffrey Moses, MD (Columbia University Irving Medical Center, New York, NY, and St. Francis Hospital, Roslyn, NY).. Compared with controls undergoing unprotected TAVR, safety events were ...
Hackensack UMC Mountainside has specially equipped rooms in its Cardiac Catheterization Laboratory led by a dedicated team certified in CPR and ACLS.
{ consumer: Discusses test used to check your heart and coronary arteries. Covers reasons cardiac catheterization is done. Looks at how to prepare. Explains how the test is done in the cardiac catheterization laboratory (cath lab) by a cardiologist. Covers risks., clinical: Discusses test used to check your heart and coronary arteries. Covers reasons cardiac catheterization is done. Looks at how to prepare. Explains how the test is done in the cardiac catheterization laboratory (cath lab) by a cardiologist. Covers risks. } Solano County, California
Early intervention in the case of a cardiac emergency can mean the difference between life and death. The flow of oxygen to the brain can be sustained and the amount of permanent damage can be reduced. A survival rate as high as 90% has been reported when defibrillation is achieved within the first minute of collapse. Every minute that passes reduces the chances of survival by 7- 10%. Be part of the Chain of Survival - Learn how to react! For more information visit the Heart and Stroke Foundation of Canada website. ...
For the first time, cardiac catheterization laboratory managers will have a document that codifies a cath labs operational processes from beginning to end of the patients stay.
TY - JOUR. T1 - ACC/AHA/SCAI 2014 health policy statement on structured reporting for the cardiac catheterization laboratory. T2 - A report of the American College of Cardiology clinical quality committee. AU - Sanborn, Timothy A.. AU - Tcheng, James E.. AU - Vernon Anderson, H.. AU - Chambers, Charles E.. AU - Cheatham, Sharon L.. AU - Decaro, Matthew V.. AU - Durack, Jeremy C.. AU - Everett, Allen D.. AU - Gordon, John B.. AU - Hammond, William E.. AU - Hijazi, Ziyad M.. AU - Kashyap, Vikram S.. AU - Knudtson, Merrill. AU - Landzberg, Michael J.. AU - Martinez-Rios, Marco A.. AU - Riggs, Lisa A.. AU - Sim, Kui Hian. AU - Slotwiner, David J.. AU - Solomon, Harry. AU - Szeto, Wilson Y.. AU - Weiner, Bonnie H.. AU - Weintraub, William S.. AU - Windle, John R.. PY - 2014/6/17. Y1 - 2014/6/17. KW - ACC Health Policy Statements. KW - best practice model. KW - cardiac catheterization. KW - cardiac catheterization laboratory workflow. KW - clinical data interchange. KW - clinical document ...
Myocardial ischemia is a disorder that usually is caused by a critical coronary artery obstruction, which is also known as atherosclerotic coronary artery disease (CAD). CAD is the leading cause of death worldwide, and it is the second most common cause of emergency department visits in the United States.
KLH Architects. KLH healthcare architectural project commissioned by West Suffolk Hospital. A new Cardiac Catheterisation Laboratory & Cardiac Critical Care Ward.
This education is designed to examine the diagnosis and intervention of disease states that are studied in the cardiac catheterization laboratory. Patient case studies will be presented and discussed, from the point of admission or symptom onset, to diagnosis, to the cardiac catheterization laboratory study/intervention performed, concluding with the patient outcome. When patients in the cases are referred for cardiothoracic and or vascular surgery, those aspects of the cases will also be reviewed. Discussion of interventions will include technique, successes and pitfalls. Our goal is to illustrate best practice ...
Discusses test used to check your heart and coronary arteries. Covers reasons cardiac catheterization is done. Looks at how to prepare. Explains how the test is done in the cardiac catheterization laboratory (cath lab) by a cardiologist. Covers risks.
WESTCHESTER COUNTY, N.Y. -- Residents living in Westchester are receiving superior heart care close to home at the NewYork-Presbyterian Cardiac Catheterization Laboratory at NewYork-Presbyterian Lawrence Hospital.
TY - JOUR. T1 - Coronary microvascular dysfunction in patients with microvascular angina. T2 - Analysis by TIMI frame count. AU - Sun, Hongtao. AU - Fukumoto, Yoshihiro. AU - Ito, Akira. AU - Shimokawa, Hiroaki. AU - Sunagawa, Kenji. PY - 2005/11/1. Y1 - 2005/11/1. N2 - We have previously reported that angina pectoris persists in patients with coronary microvascular spasm (MVS) even on calcium channel blockers. Because measurement of myocardial lactate production in the coronary sinus is necessary to diagnose MVS, a more feasible diagnostic method needs to be developed. In this study, we examined the diagnostic significance of Thrombolysis in Myocardial Infarction (TIMI) frame count, a marker of coronary blood flow, in 131 consecutive patients who underwent provocation test for coronary spasm with acetylcholine (ACh). Epicardial coronary spasm (ES) was diagnosed as more than 75% of ACh-induced vasoconstriction noted by coronary angiography. MVS was diagnosed as ACh-induced myocardial ischemia ...
Animals were sedated with ketamine hydrochloride (10 mg/kg IM initially and supplemental doses as needed) and anesthetized with pentobarbital (20 mg/kg IV). Studies were performed under sterile conditions in an animal catheterization laboratory. A polyethylene catheter with multiple side holes and a 60° directional Doppler ultrasound transducer was inserted via an arteriotomy into the right axillary artery. The catheter was passed retrogradely under fluoroscopic visualization to the origin of the right subclavian artery, ie, to the bifurcation of the right brachiocephalic artery into the right common carotid and subclavian arteries. Mean and phasic arterial pressure and Doppler frequency were recorded continuously. Cineangiograms of the right internal carotid artery were obtained in a projection that was 45° to the anteroposterior plane. Power injections of nonionic contrast (iohexol, Sanofi-Winthrop Pharmaceuticals) were made at a rate of 15 mL/s through the catheter in the brachiocephalic ...
Early two-dimensional echocardiography in acute myocardial infarction A study of left ventricular wall motion abnormalities.:A Study of Left Ventricular Wall Motion Abnormalities (1984 ...
Baseline right ventricular ejection fraction as evaluated by conventional planar equilibrium radionuclide angiography is significantly associated with outcomes in patients with pulmonary arterial hypertension, research suggests.
Clinical Practice Guidelines + Codes (CPG + Codes, for short) are the most credible resources in the market, combining quick-reference versions of official clinical guidelines with ICD-10-CM and CPT® codes.. Each title in this digital series is based on a set of condition- or disease-specific guidelines that are reviewed and approved by the authoring organization prior to publication. These summarizations of the original, full-text guidelines never omit or alter important information. The addition of ICD-10-CM diagnostic codes and CPT® procedure and service codes facilitate documentation and billing.. Guidelines are typically updated or reaffirmed every 3 to 5 years. ICD-10-CM and CPT® codes are updated yearly. (Annual code updates correspond to respective implementation dates.). ...
Our heart and vascular imaging and therapeutic center is a unique place. It\s one of only a couple in the country that have assembled and integrated the most advanced heart and vascular imaging equipment in the world. This video is brought to you by the Medical University of South Carolina in Charleston, South Carolina.
WESTCHESTER COUNTY, N.Y. -- Residents living in Westchester are receiving superior heart care close to home at the NewYork-Presbyterian Cardiac Catheterization Laboratory at NewYork-Presbyterian Lawrence Hospital.
The cardiovascular laboratory/cardiac catheterization laboratory is the subspecialty area of cardiology care where invasive procedures are performed.
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We have tried this here before - what happens in real world test is the leeward sail gets too blanketed from the windward sail, so that second sail doesnt give you any performance advantage at all. Only downwind do both sails actually get wind - so its not a product that we would try and develop, sorry ...
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: ...
PURPOSE: Cardiac resynchronisation therapy (CRT) is a technique indicated in patients with moderate to severe heart failure and ventricular dyssynchrony. To evaluate left ventricular ejection fraction (LVEF) and synchronisation changes after CRT with
With ,8 million emergency department (ED) visits annually in the United States and a reported 2% of patients discharged from the ED with a missed acute coronary syndrome, the optimal management of acute chest pain in the ED is a dilemma faced by many clinicians (1). Risk stratification on the basis of the initial history, physical examination, electrocardiogram, and troponin measurement is essential early in the triage process. For patients with low to intermediate risk for short-term death and myocardial infarction (MI), the evaluation is focused on identifying those who can be safely discharged from the ED after an observation period, with or without a noninvasive study to evaluate for ischemia (stress test) or coronary artery obstruction (coronary computed tomography angiography [CCTA]). With the advent of high-sensitivity troponins (hsTn), the ability to rule out MI in the ED has improved (2). Previous protocols utilized creatine kinase myocardial band or regular troponin. Therefore, ...
The main purpose of our new cardiac catheterization lab is to perform safe, effective procedures for the diagnosis and treatment of heart diseases, said Dr. Mark Apfelbaum, director of the NewYork-Presbyterian Cardiac Catheterization Laboratory at NewYork-Presbyterian/Lawrence Hospital and associate professor of medicine at Columbia University Medical Center. Patients will benefit from high-quality, nationally renowned cardiologists performing these procedures, which are essential for patients who require tertiary care.. Staffed by interventional cardiologists and electrophysiologists of ColumbiaDoctors, the faculty practice of Columbia University Medical Center, the lab will offer a variety of minimally invasive procedures such as coronary stenting, heart biopsy, and pacemaker implantation and will be one of the few centers in Westchester licensed to perform emergency cardiac angioplasty for patients having a heart attack.. The lab will be open 24 hours a day, seven days a week. It is ...
Background: Knowledge of current trends in nurse-administered procedural sedation and analgesia (PSA) in the cardiac catheterisation laboratory (CCL) may provide important insights into how to improve safety and effectiveness of this practice.. Objective: To characterise current practice as well as education and competency standards regarding nurse-administered PSA in Australian and New Zealand CCLs.. Design: A quantitative, cross-sectional, descriptive survey design was used.. Methods: Data were collected using a web-based questionnaire on practice, educational standards and protocols related to nurse-administered PSA. Descriptive statistics were used to analyse data.. Results: A sample of 62 nurses, each from a different CCL, completed a questionnaire that focused on PSA practice. Over half of the estimated total number of CCLs in Australia and New Zealand was represented. Nurse-administered PSA was used in 94% (n = 58) of respondents CCLs. All respondents indicated that benzodiazepines, ...
In tricuspid atresia, the valve is missing between the upper-right chamber (the right atrium) and the lower-right chamber (the right ventricle). With tricuspid atresia, blood cannot reach the lungs or the left side of the heart.
The 19th Horizons in Interventional Cardiology conference at Rambam furthered the anticipation for completion of the new Eyal Ofer Heart Hospital. Live cardiac catheterization procedures were broadcast and discussed.. Against the background of large investments by pharmaceutical companies in medical research, construction of the new Eyal Ofer Heart Hospital at Rambam Health Care Campus, and with a clear agenda of medical and therapeutic innovation, the 19th Horizons in Interventional Cardiology conference took at Rambam last week (June 5). In addition to broadcasting live surgical procedures and discussions between interventional cardiologists and other experts, numerous innovations were presented relating to a medical field that speaks to everyones heart.. The conference brought together senior physicians and cardiologists from all over Israel. During the event, live cardiac intervention treatments were broadcast directly to the conference hall. The audience, mostly composed of professionals, ...
Description: Operating Room Travel Registered Nurse Job:. Cardiac Cath Lab Nurses assist doctors performing these procedures. As a Cardiac Cath Lab Nurse, you can specialize even further in coronary catherization-procedures that involve coronary arteries, and take place in state of the art labs. In this specialty, youll have the opportunity to work with the latest technology in cardiac care.. ...
Tricuspid Atresia. In: Hay, Jr WW, Levin MJ, Deterding RR, Abzug MJ. Hay, Jr W.W., Levin M.J., Deterding R.R., Abzug M.J. Eds. William W. Hay, Jr, et al.eds. Quick Medical Diagnosis & Treatment Pediatrics New York, NY: McGraw-Hill; . http://accesspediatrics.mhmedical.com/content.aspx?bookid=2196§ionid=167756170. Accessed January 18, 2018 ...
Hidden causes of Tricuspid atresia including causal conditions & diseases, associated medical conditions, and misdiagnosis of overlooked causes.
listhospitals.in helps you find Catheterization Laboratory in India. Check out Catheterization Laboratory business names, phone numbers, address & directions to find the best Catheterization Laboratory in India
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It is conveniently located at the first floor of the hospital building in between the Radiology Division and Ultrasonography Section. The compact unit includes the offices and clerical services adjoining the cardiac catheterization laboratory with 4 working catheterization rooms. For more information please contact the local numbers from 2128 to 2133 ...
This study will compare the clinical efficacy of inhaled iloprost as an invasive, selective vasodilator in the cardiac catheterization laboratory in patients
The purpose of this study was to determine whether a relation exists between electrocardiographic (ECG) abnormalities and left ventricular wall motion in patients with subarachnoid hemorrhage. Although ECG changes simulating acute myocardial infarction are frequently seen in patients with subarachnoid hemorrhage, their relation to left ventricular wall motion has not been established. Twelve patients with subarachnoid hemorrhage were classified according to the presence of ST segment elevation in at least two consecutive leads on admission: seven patients with ST segment elevation (group I) and five patients without ST segment elevation (group II). No patients had a previous history of heart disease. Left ventricular regional wall motion was evaluated by the centerline method. The mean (+/- SEM) duration from onset of subarachnoid hemorrhage to left ventriculography was 9 +/- 3 h in group I and 10 +/- 1 h in group II. Coronary angiography was performed to rule out wall motion abnormalities due ...
Other information: The cardiac catheterisation laboratory (CCL) is a specialised medical radiology facility where both chronic-stable and life-threatening cardiovascular illness is evaluated and treated. Although there are many potential sources of discomfort and distress associated with procedures performed in the CCL, a general anaesthetic is not usually required. For this reason, an anaesthetist is not routinely assigned to the CCL. Instead, to manage pain, discomfort and anxiety during the procedure, nurses administer a combination of sedative and analgesic medications according to direction from the cardiologist performing the procedure. This practice is referred to as nurse-administered procedural sedation and analgesia (PSA). While anecdotal evidence suggested that nurse-administered PSA was commonly used in the CCL, it was clear from the limited information available that current nurse-led PSA administration and monitoring practices varied and that there was contention around some ...
Looking for online definition of pulmonary trunk in the Medical Dictionary? pulmonary trunk explanation free. What is pulmonary trunk? Meaning of pulmonary trunk medical term. What does pulmonary trunk mean?
Tricuspid atresia is a congenital heart defect. A baby born with tricuspid atresia often has serious symptoms soon after birth because blood flow to the lungs is much less than normal.
Tricuspid Atresia is a congenital heart defect that occurs due to abnormal development of the fetal heart. Tricuspid atresia is caused by...
The importance of displaying and recording multiple superimposed channels of physiologic signals was rapidly recognized. Thus, the first major development was the move from ink-writing oscillographs to multichannel oscilloscopic recorders. These instruments could display multiple channels of physiologic signals in real time on an oscilloscopic screen. The physician operator could view the screen in order to monitor in real time both the data being obtained and the patients condition. These instruments also added an important adjunct-the ability to superimpose multiple analog signals in a time-based display. This capability enhanced signal interpretation by displaying the nuances of relationships between different signals. (eg, superimposing pressure signals from adjacent cardiac chambers facilitates the recognition and measurement of pressure gradients.) This capability required incorporating photo-optical recorders that could record the individual superimposed oscilloscopic beams on ...
Here, he contributed to angiocardiography (Cine angiography had not yet been invented) when he invented and built by his own ...
... can be measured through a variety of methods, including digital subtraction cineangiography with coronary ... and digital subtraction cineangiography". European Heart Journal. 10 (8): 725-36. doi:10.1093/oxfordjournals.eurheartj.a059557 ...
Beginning his research in 1960, he developed and introduced an X-ray movie technique - coronary cineangiography - for ...
... working on the design of radiological equipment for angiography and image analysis algorithms of cineangiography. During 1994- ...
... cineangiography MeSH E01.370.350.700.060.200 - coronary angiography MeSH E01.370.350.700.060.600 - phlebography MeSH E01.370. ... cineangiography MeSH E01.370.350.700.175 - densitometry, x-ray MeSH E01.370.350.700.200 - electrokymography MeSH E01.370. ... cineangiography MeSH E01.370.370.050.200 - coronary angiography MeSH E01.370.370.050.350 - fluorescein angiography MeSH E01.370 ...
... or conventional pulmonary cineangiography (PAG), such as ring-like stenoses, webs/slits, chronic total occlusions (pouch ...
"Cineangiography" is a descriptor in the National Library of Medicines controlled vocabulary thesaurus, MeSH (Medical Subject ... Below are MeSH descriptors whose meaning is more general than "Cineangiography".. *Analytical, Diagnostic and Therapeutic ... This graph shows the total number of publications written about "Cineangiography" by people in this website by year, and ... Balloon-occlusion pulmonary cineangiography for diagnosing pulmonary embolism. Cathet Cardiovasc Diagn. 1984; 10(5):519-27. ...
Left Ventricular Wall Stress Calculated from One-Plane Cineangiography. AN APPROACH TO FORCE-VELOCITY ANALYSIS IN MAN. HERMAN L ... Left Ventricular Wall Stress Calculated from One-Plane Cineangiography. HERMAN L. FALSETTI, ROBERT E. MATES, COLIN GRANT, DAVID ... Left Ventricular Wall Stress Calculated from One-Plane Cineangiography. HERMAN L. FALSETTI, ROBERT E. MATES, COLIN GRANT, DAVID ...
First-pass radionuclide cineangiography in diagnosis of coronary artery disease in patients older than 75 years: Evaluation of ... First-pass radionuclide cineangiography in diagnosis of coronary artery disease in patients older than 75 years: Evaluation of ... First-pass radionuclide cineangiography in diagnosis of coronary artery disease in patients older than 75 years: Evaluation of ... The sensitivity of first-pass radionuclide cineangiography in the detection of coronary artery disease was evaluated in 60 ...
Radionuclide Cineangiography. Gated equilibrium radionuclide cineangiography was performed according to our standard procedures ... Real-time radionuclide cineangiography in the non-invasive evaluation of global and regional left ventricular function at rest ... Patients were enrolled in the present study based on referral for exercise radionuclide cineangiography; our cohort is not a ... The present study used radionuclide cineangiography for assessment of LVEF. However, the prognostic implications of ΔLVEF are ...
Radionuclide Cineangiography. Radionuclide cineangiography was performed with the patient in the supine position at rest and ... Real-time radionuclide cineangiography in the non-invasive evaluation of global and regional left ventricular function at rest ... Each had normal LVEF (≥45% by radionuclide cineangiography29 ). These 104 patients compose the cohort for the present analysis ... By calculating the ratio of the rest (r) and exercise (ex) LVEDV from radionuclide cineangiography, echocardiographic (echo) ...
Hyperpolarized 13C MRI Cineangiography of Pulmonary Perfusion. Yu J, Ishii M, Kadlecek S, MacDuffie Woodburn J, Emami K, Rajaei ...
Cineangiography of coronary artery anatomy in congenital cyanotic and acyanotic heart disease El Ashry Mamdouh; New Egypt. J. ... Board Subjects: Noncommunicable Diseases, Coronary Vessels ,anatomy & histology ,Cineangiography Citation: Mamdouh El Ashry , ... Cineangiography of coronary artery anatomy in congenital cyanotic and acyanotic heart disease ... Cineangiography of coronary artery anatomy in congenital cyanotic and acyanotic heart disease, New Egypt. J. Med. 1989; 3 (3): ...
Cineangiography * Coronary Angiography * Coronary Disease / diagnostic imaging* * Coronary Disease / etiology * Coronary ...
Cineangiography * Coronary Angiography * Coronary Artery Disease / diagnostic imaging * Coronary Artery Disease / therapy* ...
Left ventricular cineangiography during coronary angioplasty. Bertrand, Michel E. (et al.). Pages 133-139 ...
Computational Hemodynamics of an Implanted Coronary Stent Based on Three-Dimensional Cine Angiography Reconstruction. Chen, ...
Cineangiography of atrioventricular and ventriculo-arterial connexions. PWT Brandt. *Godman MJ (ed), Paedia- tric cardiology ...
Right ventricular ejection function assessed by cineangiography. Circ J. 2002;66:605-9.CrossRefPubMedPubMedCentralGoogle ...
... were observed in 16 of 2,922 consecutive patients who underwent selective coronary cineangiography. Underlying diseases ... Cineangiography. Collateral Circulation / physiology. Coronary Angiography*. Coronary Circulation / physiology. Coronary ... were observed in 16 of 2,922 consecutive patients who underwent selective coronary cineangiography. Underlying diseases ...
Preferred methods of visualization include fluoroscopy and cineangiography.. * [0036] Once the second-guide wire 40 has been ...
Also, all patients were studied with coronary cineangiography. A sustained exercise-induced decrease in peak systolic blood ...
... evaluation of exercise-induced ST-segment depression and elevation in ischemic heart disease Left ventricular cineangiography ...
Cineangiography and surgical reports were used to confirm findings. MRI and echocardiography were equivalent for demonstrating ...
Mitral regurgitation as seen with left ventricular (LV) cineangiography. View Media Gallery ... Mitral regurgitation as seen with left ventricular (LV) cineangiography. View Media Gallery ...
Fundamental studies for pediatric Cine-Angiography (1991) * 14. Fundamental studies for pediatric Cine-Angiography (1991) ...
cineangiography. exercise test. heart block. Resumo em inglês. Ten patients with chronic Chagas cardiomyopathy, high degree ...
Left ventricular cineangiography during coronary angioplasty.- Selection of the patients.- Left ventricular cineangiography ...
Cineangiography. A technique of taking moving pictures to visualize blood vessels by monitoring the passage of an opaque dye ...
Effectiveness of fluorography versus cineangiography at reducing radiation exposure during diagnostic coronary angiography. ...
Cine Angiography. (A) Initial left ventriculogram demonstrated left ventricular (LV) pseudoaneurysm with a neck. (B) A distal ...
An x-ray movie made of the heart arteries is called cineangiography. Patients sometimes may feel a warm sensation when the ...
A scanning system for digital analysis of cineangiography films. Computer Methods and Programs in Biomedicine, 1992, 39(1-2), ... Flow disturbances in early femoral atherosclerosis: An in vivo study with digitized cineangiography. Journal of Biomechanics, ... Separated Flow Demonstrated by Digitized in vitro Cineangiography Compared vith LDV. springer-verlag, 1989. ... Separated flow demonstrated by digitized cineangiography compared with LDV. Journal of Biomechanical Engineering, 1991, 113(3 ...
Cine angiography was once regarded as the reference standard for assessing LV function. Currently, this is not the case; as a ... result of its projectional nature and the need to inject contrast agent, cine angiography may be inaccurate. In particular, it ...
MUGA] (radionuclide cineangiography [RNCA]) nuclear scintigraphy); patients with a. left ventricular ejection fraction (LVEF ...
  • Sacher HL, Sacher ML, Landau SW, Kersten RS, Dooley F, Cnmt AC, Dietrich KA, Sacher A, Sacher M. First-pass radionuclide cineangiography in diagnosis of coronary artery disease in patients older than 75 years: Evaluation of sensitivity. (jaoa.org)
  • The sensitivity of first-pass radionuclide cineangiography in the detection of coronary artery disease was evaluated in 60 patients subdivided equally according to age younger than or older than 75 years. (jaoa.org)
  • Overall sensitivity of first-pass radionuclide cineangiography in group 1 was 93% versus 97% in group 2. (jaoa.org)
  • Failure to achieve an adequate exercise endpoint had significant effect on testing sensitivity only in the younger subjects (98% vs 60%), indicating that sensitivity of first-pass radionuclide cineangiography is age independent. (jaoa.org)
  • Methods and Results -To determine the independent prognostic importance of preoperative ischemia severity for predicting outcomes of CABG among patients with extensive CAD, we monitored 167 stable patients with angiographically documented 3-vessel CAD (average follow-up of 9 years in event-free patients) who previously had undergone rest and exercise radionuclide cineangiography. (ahajournals.org)
  • At study entry, these patients had angiographically confirmed 3-vessel CAD and underwent rest and exercise radionuclide cineangiography for determination of ischemia severity by LVEF analysis. (ahajournals.org)
  • Radionuclide angiography or contrast cineangiography may be necessary when clinical suspicion for heart failure is high and the echocardiogram is equivocal. (aafp.org)
  • Real-time radionuclide cineangiography in the noninvasive evaluation of global and regional left ventricular function at rest and during exercise in patients with coronary-artery disease. (pubmedcentralcanada.ca)
  • Sensitivity, specificity and predictive accuracy of radionuclide cineangiography during exercise in patients with coronary artery disease. (pubmedcentralcanada.ca)
  • With the development of radionuclide cineangiography more than 3 decades ago ( 10 ), it became practical to employ exercise to unmask potentially important intrinsic myocardial dysfunction that is not apparent at rest. (onlinejacc.org)
  • Exercise-induced left ventricular dysfunction in symptomatic and asymptomatic patients with aortic regurgitation: Assessment with radionuclide cineangiography. (springer.com)
  • He also studied with Mason Sones, who is considered the father of coronary cineangiography. (thefamouspeople.com)
  • Later he learnt from Mason Sones, the father of coronary cineangiography, how to read and interpret coronary and ventricular images. (princemahidolaward.org)
  • Coronary flow reserve can be measured through a variety of methods, including digital subtraction cineangiography with coronary catheterization, doppler echocardiography, and positron emission tomography (PET). (wikipedia.org)
  • Biplane cineangiography and intravascular ultrasound (IVUS) are 2 powerful modalities for assessing this relationship in vivo. (ahajournals.org)
  • To evaluate gender-related differences in left ventricular (LV) structure and function in aortic stenosis, LV biplane cineangiography, micromanometry and endomyocardial biopsies were carried out in 56 patients with aortic stenosis and normal coronary arteries. (nih.gov)
  • Quantitation of coronary luminal diameter with a 20 MHz mechanically rotating intravascular ultrasound (IVUS) catheter was compared with orthogonal-view cineangiography by use of a semiautomated edge-detection algorithm in 48 patients undergoing coronary angioplasty. (kuleuven.be)
  • Coronary-to-pulmonary artery shunts via the bronchial artery (CA-BA-PA shunts) were observed in 16 of 2,922 consecutive patients who underwent selective coronary cineangiography. (biomedsearch.com)
  • Mitral regurgitation as seen with left ventricular (LV) cineangiography. (medscape.com)
  • Balloon-occlusion pulmonary cineangiography for diagnosing pulmonary embolism. (umassmed.edu)
  • The catheter is run to the the region of the heart, through which a radioopaque substance is delivered and cineangiography is performed in several projections for a detailed examination of all segments of the arteries of the heart. (emcmos.ru)
  • Cineangiography" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings) . (umassmed.edu)
  • cineangiography - the procedure of taking moving pictures to show the passage of dye through blood vessels. (nyhq.org)
  • Similar trends were observed by measuring LVEF via cineangiography, as provided in the data table below. (bio-medicine.org)
  • Mamdouh El Ashry , Cineangiography of coronary artery anatomy in congenital cyanotic and acyanotic heart disease, New Egypt. (who.int)
  • Hemodynamic evaluation of exercise-induced ST-segment depression and elevation in ischemic heart disease Left ventricular cineangiography during exercise. (nii.ac.jp)
  • An x-ray movie made of the heart arteries is called cineangiography. (healthcentral.com)
  • A handout on this topic is available at https://familydoctor.org/familydoctor/en/diseases-conditions/heart-failure.html . (aafp.org)
  • Cineangiography of the heart in a single breath hold with a segmented turboFLASH sequence. (springer.com)
  • Following this a coronary cineangiography was performed which showed a 70% obstructive lesion of the left coronary artery branch trunk ( figure 3 ). (scielo.br)
  • Right ventricular ejection function assessed by cineangiography. (springer.com)