OBJETIVE: To identify pathologic angiography findings in patients with positive myocardium scintigram and normal coronary artery angiogram. METHODS: One hundred and five (105) patients were assessed retrospectively, being 61 females (58%) and 44 males (42%), in the 31-78-year-old range. Abnormalities were divided into 9 categories following angiographic findings: (1) coronary circulation without obstructive lesions; (2) tortuous coronary arteries; (3) coronary circulation with spasm; (4) myocardial bridge, (5) mitral valve prolapse; (6) coronary circulation with diffuse luminal narrowing; (7) coronary fistula; (8) left ventricular hypertrophy; and (9) dilated cardiomyopathy. RESULTS: One hundred fifty (150) angiographic abnormalities were found, either isolatedly or in combination: 98 patients with abnormal coronary findings, 51 with abnormal left ventricle findings, and one abnormal mitral valve finding. CONCLUSION: In the presence of normal coronary angiograms those abnormalities could be responsible for "false-positive" myocardial scintigrams.
Coronary angiography; Radionuclide imaging; Coronary disease, radiography; Heart catheterization
