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THE CLINICAL USEFULNESS OF MYOCARDIAL THALLIUM-201 WASHOUT RATE AFTER EXERCISE STRESS
- Source :
- The KITAKANTO Medical Journal. 39:737-747
- Publication Year :
- 1989
- Publisher :
- Kitakanto Medical Society, 1989.
-
Abstract
- Myocardial T1-201 Washout rates (WORs) after exercise stress were measured in 15 normal subjects and 67 patients with coronary artery disease (CAD) or chest pain syndrome and the usefulness of WOR for the detection of CAD was studied.Myocardial tomograms were obtained both immediately after exercise and 3 hours later using a rotating gamma camera in 15 normal subjects and 67 patients. After low-pass filtering, images were reconstructed into short-axis, horizontal long-axis and vertical long-axis tomograms and visually interpreted. By using short-axis tomograms, left ventricle WORs were expressed as circumferential profile curves at the apex, center and base of the ventricle. Lower normal limits of the WOR were set at 2 SDs from the mean of the normal subjects. The combination of visual interpretation of SPECT with WOR increased the sensitivity of detection of CAD from 8.3% to 66.7% in patients with three-vessel CAD without losing specificity.WOR after exercise stress is believed to be a useful method of detecting multivessel CAD.
- Subjects :
- medicine.medical_specialty
medicine.diagnostic_test
business.industry
Ischemia
chemistry.chemical_element
Blood flow
Chest pain
medicine.disease
law.invention
Coronary artery disease
medicine.anatomical_structure
chemistry
Ventricle
law
Internal medicine
medicine
Cardiology
Thallium
medicine.symptom
business
Nuclear medicine
Emission computed tomography
Gamma camera
Subjects
Details
- ISSN :
- 18836135 and 00231908
- Volume :
- 39
- Database :
- OpenAIRE
- Journal :
- The KITAKANTO Medical Journal
- Accession number :
- edsair.doi...........c697a7317acebd4d27c5831de9307651