Significance of collateral circulation on peri-infarct zone: assessment with stress thallium-201 scintigraphy

Journal Article · Tue Apr 01 04:00:00 EST 1986 · Clin. Cardiol.; (United States)

DOI:https://doi.org/10.1002/clc.4960090402· OSTI ID:5124180

Imamura, T; Araki, H; Fukuyama, T; Maruoka, Y; Ootsubo, H; Nakamura, M; Koiwaya, Y; Tanaka, K

To evaluate the significance of collateral circulation on peri-infarct zone, stress myocardial scintigraphy and contrast left ventriculography (LVG) were performed in 38 patients with recent myocardial infarction (MI). All patients had at least one completely occluded coronary artery corresponding to the infarct area. In patients with good collaterals, stress induced transient enlargement of the perfusion defect, however, in those with poor or no collaterals the enlargement did not occur (p less than 0.05). Wall motion abnormality on LVG was significantly milder in the former patients than in the latter (p less than 0.001). Transient enlargement of the perfusion defect after stress and milder left ventricular asynergy were more frequently observed in patients with anterior MI and good collaterals. These observations indicate that good collaterals may keep some myocardium in the peri-infarct zone viable.

• OSTI ID: 5124180
• Journal Information: Clin. Cardiol.; (United States), Journal Name: Clin. Cardiol.; (United States) Vol. 4; ISSN CLCAD
• Country of Publication: United States
• Language: English

Related Subjects

550601* -- Medicine-- Unsealed Radionuclides in Diagnostics
62 RADIOLOGY AND NUCLEAR MEDICINE
BETA DECAY RADIOISOTOPES
BLOOD CIRCULATION
BODY
CARDIOVASCULAR DISEASES
CARDIOVASCULAR SYSTEM
COUNTING TECHNIQUES
DAYS LIVING RADIOISOTOPES
DIAGNOSTIC TECHNIQUES
DISEASES
ELECTRON CAPTURE RADIOISOTOPES
HEART
HEAVY NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MUSCLES
MYOCARDIAL INFARCTION
MYOCARDIUM
NUCLEI
ODD-EVEN NUCLEI
ORGANS
PATIENTS
RADIOISOTOPE SCANNING
RADIOISOTOPES
SCINTISCANNING
SECONDS LIVING RADIOISOTOPES
THALLIUM 201
THALLIUM ISOTOPES