Cineangiography: Motion pictures of the passage of contrast medium through blood vessels.Angiocardiography: Radiography of the heart and great vessels after injection of a contrast medium.Cardiac Volume: 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.Heart Ventricles: 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.Cardiac Catheterization: Procedures in which placement of CARDIAC CATHETERS is performed for therapeutic or diagnostic procedures.Stroke Volume: 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.Coronary Artery Disease: Pathological processes of CORONARY ARTERIES that may derive from a congenital abnormality, atherosclerotic, or non-atherosclerotic cause.Exercise Test: 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.Coronary Disease: 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.Coronary Artery Bypass: 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.Coronary Angiography: Radiography of the vascular system of the heart muscle after injection of a contrast medium.Ventricular Function, Left: 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.Aortic Valve: The valve between the left ventricle and the ascending aorta which prevents backflow into the left ventricle.Aortic Valve Stenosis: 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.Aortic Valve Insufficiency: 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).Heart Valve Prosthesis Implantation: Surgical insertion of synthetic material to repair injured or diseased heart valves.Heart Valve Prosthesis: A device that substitutes for a heart valve. It may be composed of biological material (BIOPROSTHESIS) and/or synthetic material.Mitral Valve: The valve between the left atrium and left ventricle of the heart.Prognosis: 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.Patents as Topic: Exclusive legal rights or privileges applied to inventions, plants, etc.Gastrointestinal Transit: 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.Surgically-Created Structures: Organs or parts of organs surgically formed from nearby tissue to function as substitutes for diseased or surgically removed tissue.Stents: Devices that provide support for tubular structures that are being anastomosed or for body cavities during skin grafting.Inventions: A novel composition, device, or process, independently conceived de novo or derived from a pre-existing model.Intellectual Property: 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)Lymphocele: Cystic mass containing lymph from diseased lymphatic channels or following surgical trauma or other injury.American Heart Association: A voluntary organization concerned with the prevention and treatment of heart and vascular diseases.Cardiovascular Diseases: Pathological conditions involving the CARDIOVASCULAR SYSTEM including the HEART; the BLOOD VESSELS; or the PERICARDIUM.Stroke: A group of pathological conditions characterized by sudden, non-convulsive loss of neurological function due to BRAIN ISCHEMIA or INTRACRANIAL HEMORRHAGES. Stroke is classified by the type of tissue NECROSIS, such as the anatomic location, vasculature involved, etiology, age of the affected individual, and hemorrhagic vs. non-hemorrhagic nature. (From Adams et al., Principles of Neurology, 6th ed, pp777-810)Cardiology: The study of the heart, its physiology, and its functions.United StatesMedical Missions, Official: Travel by a group of physicians for the purpose of making a special study or undertaking a special project of short-term duration.Risk Factors: An aspect of personal behavior or lifestyle, environmental exposure, or inborn or inherited characteristic, which, on the basis of epidemiologic evidence, is known to be associated with a health-related condition considered important to prevent.Thermoluminescent Dosimetry: The use of a device composed of thermoluminescent material for measuring exposure to IONIZING RADIATION. The thermoluminescent material emits light when heated. The amount of light emitted is proportional to the amount of ionizing radiation to which the material has been exposed.Radiation Dosage: The amount of radiation energy that is deposited in a unit mass of material, such as tissues of plants or animal. In RADIOTHERAPY, radiation dosage is expressed in gray units (Gy). In RADIOLOGIC HEALTH, the dosage is expressed by the product of absorbed dose (Gy) and quality factor (a function of linear energy transfer), and is called radiation dose equivalent in sievert units (Sv).Fluoroscopy: Production of an image when x-rays strike a fluorescent screen.Radiation ProtectionRadiation Monitoring: The observation, either continuously or at intervals, of the levels of radiation in a given area, generally for the purpose of assuring that they have not exceeded prescribed amounts or, in case of radiation already present in the area, assuring that the levels have returned to those meeting acceptable safety standards.Escherichia coli O157: 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.Dopamine: 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.Molecular Chaperones: 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.O(6)-Methylguanine-DNA Methyltransferase: 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.Salmonella typhimurium: A serotype of Salmonella enterica that is a frequent agent of Salmonella gastroenteritis in humans. It also causes PARATYPHOID FEVER.Bacterial Proteins: Proteins found in any species of bacterium.Molecular Sequence Data: 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.Fatty Acids: Organic, monobasic acids derived from hydrocarbons by the equivalent of oxidation of a methyl group to an alcohol, aldehyde, and then acid. Fatty acids are saturated and unsaturated (FATTY ACIDS, UNSATURATED). (Grant & Hackh's Chemical Dictionary, 5th ed)Radioisotopes: Isotopes that exhibit radioactivity and undergo radioactive decay. (From Grant & Hackh's Chemical Dictionary, 5th ed & McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)Internal Medicine: A medical specialty concerned with the diagnosis and treatment of diseases of the internal organ systems of adults.Fatty Acids, Volatile: Short-chain fatty acids of up to six carbon atoms in length. They are the major end products of microbial fermentation in the ruminant digestive tract and have also been implicated in the causation of neurological diseases in humans.Lipid Metabolism: Physiological processes in biosynthesis (anabolism) and degradation (catabolism) of LIPIDS.Fats: The glyceryl esters of a fatty acid, or of a mixture of fatty acids. They are generally odorless, colorless, and tasteless if pure, but they may be flavored according to origin. Fats are insoluble in water, soluble in most organic solvents. They occur in animal and vegetable tissue and are generally obtained by boiling or by extraction under pressure. They are important in the diet (DIETARY FATS) as a source of energy. (Grant & Hackh's Chemical Dictionary, 5th ed)Fatty Acids, Nonesterified: FATTY ACIDS found in the plasma that are complexed with SERUM ALBUMIN for transport. These fatty acids are not in glycerol ester form.

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 ...
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.
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.
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 ...
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.
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 ...
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.
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
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 ...
LOS ANGELES, CA, USA, July 30, 2020 /EINPresswire.com/ - News Release. Media Contact: Alicia Gonzalez Adventist Health White Memorial (818) 800-3113 [email protected] Adventist Health White Memorial Physicians Perform Innovative BASILICA Technique Preventing TAVR-induced coronary artery obstruction in high-risk patients Even during the COVID-19 pandemic, the Structural Heart Disease Program at Adventist Health White Memorial continues to expand with the first successful BASILICA TAVR Procedure in the hospitals history! BASILICA is a cutting-edge technique used to prevent coronary obstruction from the Transcatheter Aortic Valve Replacement (TAVR) procedure. The BASILICA technique increases life-saving options for patients who need heart valve procedures but are not candidates for open heart surgery. TAVR has changed the lives of multiple patients at Adventist Health White Memorial since the procedure was introduced a few years ago. TAVR is a less invasive alternative to open heart surgery. ...
A novel method for determination of 3-D structure in biplane angiography, including determining the distance of a perpendicular line from the focal spots of respective x-ray sources to respective image planes and defining the origin of each biplane image as the point of intersection with the perpendicular line thereto, obtaining two biplane digital images at arbitrary orientations with respect to an object, identifying at least 8 points in both images which correspond to respective points in the object, determining the image coordinates of the 8 or more identified object points in the respective biplane images, constructing a set of linear equations in 8 unknowns based on the image coordinates of the object points and based on the known focal spot to image plane distances for the two biplane images; solving the linear equations to yield the 8 unknowns, which represent the fundamental geometric parameters of the biplane imaging system; using the fundamental parameters to calculate the 3-dimensional
... is a site designed for the professional staff of the Cardiac Catheterization Laboratory. The information presented in this site is designed to be an excellent resource for new and experienced nurses, technicians, and other key personnel that work in the Cardiac Catheterization Lab. This site is also designed to be a study guide for individuals preparing for the RCIS certification in invasive cardiology.. After 15 years of orienting new people to cardiac catheterization and using printed manuals that I have pulled together from various resources, I have always seen the need for a site that personnel could go to and get the basic knowledge and skills needed to perform their role in the Cardiac Catheterization Lab.. Please be patient with me as I continue to finish and improve the various portions of this site to make it as beneficial as possible. Im looking to add sections that offer further insight about various techniques, skills, and insights related to procedures in the ...
Mahkota Heart Centre is the biggest heart centre in the southern region of Peninsular Malaysia and has comprehensive cardiac diagnostic facilities with two cardiac catheterization laboratories (Cath lab) and both an adult and paediatric cardiothoracic surgical team. ...
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."In this day and age, the majority of the procedures we do in the Cath Lab are extremely safe, quick and useful," said Mark A. Apfelbaum, MD, Director of the ... ...
f(1)= 20, f(3)=13, f(5)=15, f(7)=16, f(9)=11, on [0,6] a, used midpint rule with n=5 to estimate intergral form 0 to 10 f(x)dx b, use trapezoidal rule with n=4 to estimate intergral from 1 to 9 f(x)dx c, used simpsons rule with n=4 to estimate intergal from 1 to 9 (x)dx ...
Treatment of Tricupid Atresia. When a child is diagnosed with tricuspid atresia, the newborn must quickly be transferred to an intensive care unit where "prostaglandin E1 is [administered] to keep the blood circulating to the lungs."[5] A ventilator may be required to keep the newborn breathing.[6]. While prostaglandin E1 and the use of a ventilator may stabilize the newborn, tricuspid atresia "always requires surgery."[7] This surgery is highly invasive, and usually takes place in three stages. First, the babys blood flow is redirected with the use of an artificial blood vessel to ensure that adequate blood reaches the lungs for oxygenation.[8]. After this stage, the baby most often can return home albeit under the close supervision of a physician and with the use of daily medication.. The second stage of the three-part surgery required to treat tricuspid atresia is called "the Glenn shunt of Hemifontan procedure."[9] In this stage, the major arteries carrying oxygen-deficient blood to the ...
A cardiac rhythm management system provides for the trending of a third heart sound (S3) index. The S3 index is a ratio, or an estimate of the ratio, of the number of S3 beats to the number of all heart beats, where the S3 beats are each a heart beat during which an occurrence of S3 is detected. An implantable sensor such as an accelerometer or a microphone senses an acoustic signal indicative heart sounds including S3. An S3 detector detects occurrences of S3 from the acoustic signal. A heart sound processing system trends the S3 index on a periodic basis to allow continuous monitoring of the S3 activity level, which is indicative of conditions related to heart failure.
A cardiac rhythm management system provides for the trending of a third heart sound (S3) index. The S3 index is a ratio, or an estimate of the ratio, of the number of S3 beats to the number of all heart beats, where the S3 beats are each a heart beat during which an occurrence of S3 is detected. An implantable sensor such as an accelerometer or a microphone senses an acoustic signal indicative heart sounds including S3. An S3 detector detects occurrences of S3 from the acoustic signal. A heart sound processing system trends the S3 index on a periodic basis to allow continuous monitoring of the S3 activity level, which is indicative of conditions related to heart failure.
Home > Medical Reference and Training Manuals > > Figure 2-8. Positioning for stomach and duodenum, right anterior oblique. - Fluoroscopy and Special Radiographic ...
Idiopathic dilatation of the pulmonary trunk is a rare congenital anomaly comprising of pulmonary trunk enlargement with or without dilatation of the right and left pulmonary arteries. For this diagnosis, exclusion of pulmonary and cardiac disea...
Responsibilities: The Cardiac Cath Lab Registered Nurse performs as an integral part of a multidisciplinary team providing care to patients during their journey through the Cardiac Catheterization Laboratory. Provides age specific care to patients ranging from infants to geriatric patients. Registered Nurses interact with patients in the outpatient, inpatient hospital and emergency settings. Per protocols, independently screen patients for various Cardiovascular, Cerebral vascular and Peripheral vascular diagnostic or interventional procedures. Provide pre, intra and post procedure assessment and education for patients undergoing these procedures. Collaborate with referring and procedural physicians to insure all protocol and educational needs of the patient are met prior to procedures. Provides moderate sedation and administers medications per protocols, ACLS guidelines and physician orders during procedures. Monitors for and respond to changes in, level of consciousness, ECG, respiratory, and ...
Pulmonary trunk aka Truncus pulmonalis in the latin terminology and part of structures of the left atrium and ventricle. Learn more now!
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MedPro Healthcare Staffing, a Joint Commission-certified staffing agency, is seeking a quality Cath Lab Registered Nurse (RN) for a travel assignment with one of our top healthcare clients. Requirements:
... 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. PMID 2529120. Dimitrow, PP; Krzanowski, M; ...
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 E01.370.350.700.175 --- densitometry, x-ray MeSH E01.370.350.700.200 --- electrokymography MeSH E01.370. ... cineangiography MeSH E01.370.350.700.060.200 --- coronary angiography MeSH E01.370.350.700.060.600 --- phlebography MeSH ... cineangiography MeSH E01.370.370.050.200 --- coronary angiography MeSH E01.370.370.050.350 --- fluorescein angiography MeSH ...
... or conventional pulmonary cineangiography (PAG), such as ring-like stenoses, webs/slits, chronic total occlusions (pouch ...
Cardiac cineangiography. With the availability of high-quality echocardiography, cardiac angiography has a limited role in the ...
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) ...
Left ventricular cineangiography during coronary angioplasty. Bertrand, Michel E. (et al.). Pages 133-139 ...
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 ...
Angulated views in cineangiography. C Green, L P Elliott. Circulation. 1981;64:869-870, originally published October 1, 1981 ...
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 ...
... and cineangiography in 30 infants and children, ages 3 days to 21 years. Dosimeters were placed over the eyes, thyroid, ... 5810 mR during catheterization fluoroscopy and 1592 mR during cineangiography. During the complete catheterization, average ... substitution of contrast echocardiography for cineangiography; (3) large-plate abdominal/gonadal shielding; (4) a selective ...
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 ...
  • Radionuclide angiography or contrast cineangiography may be necessary when clinical suspicion for heart failure is high and the echocardiogram is equivocal. (aafp.org)
  • Saint-Jacques began his career in 1993 as a biomedical engineer at the Quebec firm Electromed with secondment to Lariboisière Hospital, working on the design of radiological equipment for angiography and image analysis algorithms of cineangiography. (wikipedia.org)
  • In the past, the importance of this chamber has been largely downplayed because cineangiography could not visualize it directly. (nih.gov)
  • 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)