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Clinical evaluation of emission tomography using seven-pinhole collimator: improved detection of perfusion defect by the addition of the right anterior oblique projection

Journal Article · · Clin. Nucl. Med.; (United States)
; ; ; ; ; ; ; ; ;

The clinical efficacy of thallium emission myocardial tomography using a seven-pinhole collimator in the right anterior oblique (RAO) projection was evaluated. Myocardial tomography in left anterior oblique (LAO) and RAO projections was performed following planar thallium perfusion imaging at rest in 11 patients with myocardial infarction. The RAO tomogram was useful, especially in detecting apical perfusion defects, while the LAO tomogram was useful in detecting inferior and anteroseptal wall defects. For the four patients without an apparent myocardial perfusion defect seen on the planar image, the LAO tomogram showed a perfusion defect in three, and the RAO tomogram also showed the defect in three. One or the other of the two views demonstrated the defect for all 11 patients. The myocardial tomogram in the RAO projection, providing a sufficiently high-quality and high-contrast image, gives useful information complementary to the findings of the commonly used LAO projection in the evaluation of myocardial infarctions.

Research Organization:
Kyoto University School of Medicine, Japan
OSTI ID:
6783442
Journal Information:
Clin. Nucl. Med.; (United States), Journal Name: Clin. Nucl. Med.; (United States) Vol. 7:4; ISSN CNMED
Country of Publication:
United States
Language:
English

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Related Subjects

550601* -- Medicine-- Unsealed Radionuclides in Diagnostics
62 RADIOLOGY AND NUCLEAR MEDICINE
BETA DECAY RADIOISOTOPES
BLOOD FLOW
BODY
CARDIOVASCULAR DISEASES
CARDIOVASCULAR SYSTEM
COLLIMATORS
COMPUTERIZED TOMOGRAPHY
DAYS LIVING RADIOISOTOPES
DIAGNOSIS
DIAGNOSTIC TECHNIQUES
DIAGNOSTIC USES
DISEASES
ELECTRON CAPTURE RADIOISOTOPES
EMISSION COMPUTED TOMOGRAPHY
HEART
HEAVY NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MUSCLES
MYOCARDIAL INFARCTION
MYOCARDIUM
NUCLEI
ODD-EVEN NUCLEI
ORGANS
PATIENTS
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
THALLIUM 201
THALLIUM ISOTOPES
TOMOGRAPHY
USES