Abstract:
45 patients were selected whose coronary angiograms were abnormal i.e. showing triple, double and single vessel disease out of a pool of Ela patients who had undergone stress thallium imaging and coronary angiography during the one year period from June 85 to 86. Majority of these patients were males (43 out of 45), their ages ranged between 34-54 years (average= A8). Resting ECG's were normal in 25 patients, 15 patients had suffered inferior myocardial infarction and 5 had sustained anterior myocardial infarction in the past. Coronary angiography revealed triple vessel disease in 20 patients, double vessel disease in 15, and single vessel coronary artery disease in 10 Their coronary angiograms were analysed and compared with the scintigraphic findings. Although thallium scanning has high sensitivity for detection of coronary artery disease in general, it has only moderate sensitivity for detection of stenosis in individual coronary arteries. Thallium scan identified 75% of RCA lesions, 66% of LAD lesions and 38% of Circumflex lesions. LAD and CX lesions are co-related but the sensitivity for RCA lesions is greater. Thallium scan sometimes fails to identify the less severe lesions in the presence of more severe coronary lesions in the same patient. The sensitivity is much higher in single vessel coronary artery disease. Gr-K
Page(s):
44-48
DOI:
DOI not available
Published:
Journal: Pakistan Heart Journal, Volume: 19, Issue: 3, Year: 1986