Rest and exercise electrocardiograms and radionuclides in patients presenting for cardiac rehabilitation

Journal Article · Sun Mar 01 04:00:00 EST 1981 · Clin. Cardiol.; (United States)

DOI:https://doi.org/10.1002/clc.4960040201· OSTI ID:5392694

Froelicher, V F; Sebrechts, C; Streitwiesser, D; Battler, A; McKirnan, M D; Ashburn, W

The rest and exercise ECG, /sup 201/thallium myocardial scintigram (/sup 201/T1), and radionuclide ventriculography are noninvasive procedures which can be used to evaluate myocardial damage and ischemia. To compare these procedures and to obtain baseline information, 85 male patients with coronary heart disease were evaluated prior to beginning an exercise program. Findings at rest included Q waves or bundle branch block in 54%; 47% had /sup 201/T1 redistribution defects and 33% an abnormal ejection fraction (EF). Of the 39 patients with normal ECGs, 31 had no /sup 201/T1 defects and only of these 31 (3%) had an abnormal EF. Abnormal EF or /sup 201/T1 redistribution defects did not occur in patients without a history of myocardial infarction. Abnormal resting EF occurred in 63% of patients with abnormal versus 7% of those with normal /sup 201/T1 redistribution scans. Exercise test results included an abnormal ST-segment response in 80%, an abnormal EF response in 65%, and a /sup 201/T1 ischemic defect in 37%. Twenty patients had exercise-induced ST elevation, and this phenomenon was more related to ventricular aneurysms than to ischemia. /sup 201/Thallium imaging, radionuclide ventriculography, and the ECG provide results regarding myocardial damage that agree by more than chance, while the exercise induced ST-segment changes did not agree with the radionuclide indications of exercise-induced ischemia.

• OSTI ID: 5392694
• Journal Information: Clin. Cardiol.; (United States), Journal Name: Clin. Cardiol.; (United States) Vol. 4:2; ISSN CLCAD
• Country of Publication: United States
• Language: English

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59 BASIC BIOLOGICAL SCIENCES
62 RADIOLOGY AND NUCLEAR MEDICINE
BETA DECAY RADIOISOTOPES
BODY
CARDIOVASCULAR DISEASES
CARDIOVASCULAR SYSTEM
COMPARATIVE EVALUATIONS
COUNTING TECHNIQUES
DAYS LIVING RADIOISOTOPES
DIAGNOSIS
DIAGNOSTIC TECHNIQUES
DIAGNOSTIC USES
DIAGRAMS
DISEASES
ELECTROCARDIOGRAMS
ELECTRON CAPTURE RADIOISOTOPES
HEART
HEAVY NUCLEI
IMAGES
ISCHEMIA
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MYOCARDIAL INFARCTION
NUCLEI
ODD-EVEN NUCLEI
ORGANS
PATHOLOGY
PATIENTS
RADIOISOTOPE SCANNING
RADIOISOTOPES
SCINTISCANNING
SECONDS LIVING RADIOISOTOPES
THALLIUM 201
THALLIUM ISOTOPES
USES
VASCULAR DISEASES