Exercise first-pass radionuclide ventriculography in detection of coronary artery disease.

Exercise first-pass radionuclide ventriculography in detection of coronary artery disease.

Thirty-four patients with coronary artery disease were exercised on a bicycle ergometer until they developed angina. There was a highly significant fall in ejection fraction from a mean of 61 1 to 52-9 which was more pronounced in the group with three vessel coronary artery disease. A coronary index was computed which took into account the extent and distribution of coronary artery lesions. Tho...

Radionuclide ventriculography in coronary artery disease.

Detection of a false left ventricular aneurysm by first-pass radionuclide ventriculography.

A false left ventricular aneurysm complicating an inferior myocardial infarction was successfully identified by computerized first-pass radionuclide ventriculography using a multicrystal gamma camera. The aneurysmal chamber exhibited paradoxical systolic expansion, a pattern of contraction confirmed by contrast cineangiography. Because of the propensity of false aneurysms to rupture, early noni...

Effects of Maximal Exercise Stress on Left Ventricular Function in Patients with Coronary Artery Disease Using First Pass Radionuclide Angiocardiography

Angiographically determined changes in segmental wall motion (SWM) and ejection fraction (EF) are sensitive indices of left ventricular (LV) function. To compare the effects of exercise on LV function, first pass radionticlide angiocardiography was used before and during maximal upright bicycle stress in patients with nonsignificantly stenosed coronary arteries, and in those with > 75% stenosis...

Myocardial perfusion scan accuracy in detection of coronary artery disease - Comparison with exercise stress test [Persian]

Introduction: In patients with coronary artery disease (CAD) noninvasive evaluation for detection of ischemia is important to avoid invasive interventions like angiography. Exercise stress test is conventionally the first study used in evaluation of CAD. Considering the noninvasive nature of the myocardial perfusion scan, we decided to compare its accuracy with stress test. Methods: Patie...