Evaluation of the post-coronary artery bypass patient by myocardial perfusion scintigraphy and computed tomography
Journal Article
·
· AJR, Am. J. Roentgenol.; (United States)
The clinical utility of /sup 201/Tl scintigraphy and of computed tomography for the noninvasive assessment of graft patency and regional myocardial perfusion was evaluated in 24 patients who had undergone aortocoronary bypass surgery. Perfusion defects on /sup 201/Tl scintigraphy (reversible or new, fixed) correlated (100% sensitivity, 78% specificity) with occlusion or stenosis of a graft or significant new native vessel disease. Graft occlusion was accurately demonstrated by dynamic computed tomography (100% sensitivity, 96% specificity) but did not uniformly correlate with regional perfusion. Perfusion defects in the distribution of patent grafts resulted from progressive native vessel disease or graft stenosis without complete occlusion. The absence of exercise-induced perfusion defects in regions of occluded grafts was attributed to suboptimal exercise, collateralization, or noncritical native vessel stenosis. The two studies provide complementary anatomic and physiologic information in the evaluation of the postbypass patient.
- Research Organization:
- Department of Radiology, University of California, San Francisco
- OSTI ID:
- 5477906
- Journal Information:
- AJR, Am. J. Roentgenol.; (United States), Journal Name: AJR, Am. J. Roentgenol.; (United States) Vol. 141:3; ISSN AAJRD
- Country of Publication:
- United States
- Language:
- English
Similar Records
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/sup 201/Tl myocardial perfusion scintigraphy to evaluate patients after coronary bypass surgery
Thallium-201 myocardial imaging before and after coronary revascularization: assessment of regional myocardial blood flow and graft patency
Journal Article
·
Sun Oct 31 23:00:00 EST 1982
· Circulation; (United States)
·
OSTI ID:6492813
/sup 201/Tl myocardial perfusion scintigraphy to evaluate patients after coronary bypass surgery
Journal Article
·
Tue Aug 01 00:00:00 EDT 1978
· Am. J. Cardiol.; (United States)
·
OSTI ID:7098304
Thallium-201 myocardial imaging before and after coronary revascularization: assessment of regional myocardial blood flow and graft patency
Journal Article
·
Mon Oct 31 23:00:00 EST 1977
· Circulation; (United States)
·
OSTI ID:5115130
Related Subjects
550601* -- Medicine-- Unsealed Radionuclides in Diagnostics
62 RADIOLOGY AND NUCLEAR MEDICINE
AORTA
ARTERIES
BETA DECAY RADIOISOTOPES
BIOMEDICAL RADIOGRAPHY
BLOOD VESSELS
BODY
CARDIOVASCULAR SYSTEM
COMPUTERIZED TOMOGRAPHY
CORONARIES
DAYS LIVING RADIOISOTOPES
DIAGNOSTIC TECHNIQUES
DIAGNOSTIC USES
ELECTRON CAPTURE RADIOISOTOPES
EXERCISE
HEART
HEAVY NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MALES
MEDICINE
NUCLEAR MEDICINE
NUCLEI
ODD-EVEN NUCLEI
ORGANS
PATIENTS
PERFUSED ORGANS
RADIOISOTOPES
RADIOLOGY
SECONDS LIVING RADIOISOTOPES
SURGERY
THALLIUM 201
THALLIUM ISOTOPES
TOMOGRAPHY
TRANSPLANTS
USES
62 RADIOLOGY AND NUCLEAR MEDICINE
AORTA
ARTERIES
BETA DECAY RADIOISOTOPES
BIOMEDICAL RADIOGRAPHY
BLOOD VESSELS
BODY
CARDIOVASCULAR SYSTEM
COMPUTERIZED TOMOGRAPHY
CORONARIES
DAYS LIVING RADIOISOTOPES
DIAGNOSTIC TECHNIQUES
DIAGNOSTIC USES
ELECTRON CAPTURE RADIOISOTOPES
EXERCISE
HEART
HEAVY NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MALES
MEDICINE
NUCLEAR MEDICINE
NUCLEI
ODD-EVEN NUCLEI
ORGANS
PATIENTS
PERFUSED ORGANS
RADIOISOTOPES
RADIOLOGY
SECONDS LIVING RADIOISOTOPES
SURGERY
THALLIUM 201
THALLIUM ISOTOPES
TOMOGRAPHY
TRANSPLANTS
USES