110 Evaluation of aortocoronary bypass surgery using thalium-201 myocardial scintigrams

Thallium-201 Myocardial Perfusion Scintigrams in the Evaluation of Aortocoronary Saphenous Bypass Surgery

Thallium-201 Myocardial Perfusion Scintigrams in the Evaluation of Aortocoronary Saphenous Bypass Surgery In a recent article, Verani et al. (/) reported the effect of aortocoronary bypass grafting (ACBG) on regional myocardial perfusion, using thallium-20! imaging after exercise. At the present time there is considerable controversy about ACBG and the way in which angina is relieved by this op...

Exercise thallium-201 myocardial scintigraphy in the follow-up of aortocoronary bypass graft surgery.

The predictive accuracy of exercise thallium-201 (201Tl) myocardial scintigraphy in the evaluation of aortocoronary bypass graft surgery was assessed in 48 patients undergoing angiographic investigation 15 months (mean time) after myocardial revascularisation. 201Tl scintigrams detected 61 out of 77 (79%) patent grafts but only 21 out of 42 (50%) occluded grafts, though, for grafts supplying no...

Rest and exercise potassium-43 myocardial perfusion imaging for the noninvasive evaluation of aortocoronary bypass surgery.

Sixteen patients undergoing aortocoronary bypass surgery were evaluated with rest and exercise potassium-43 (43K) myocardial imaging and contrast angiography an average of 5.5 months postoperatively. The results of 43K imaging allowed the division of these patients into two groups. Group 1 consisted of patients in whom there was either normalization or significant improvement in postoperative i...

Regional myocardial wall thickening response to nitroglycerin. A predictor of myocardial response to aortocoronary bypass surgery.

The peak rate of systolic wall thickening (p +/- dTw/dt) in regions of the left ventricle (LV) was determined preoperatively by biplane roentgen videometry in 18 patients before and after sublingual administration of nitroglycerin (NTG) and 3-23 months (median 12) after aortocoronary bypass surgery. The regional LV response to NTG was a reliable predictor for postoperative improvement in region...

Thallium-201 exercise myocardial imaging to evaluate myocardial perfusion after coronary artery bypass surgery.