Stress myocardial imaging in patients with mitral valve prolapse: evidence of a perfusion abnormality
Twenty-four patients with mitral valve prolapse underwent cardiac catheterization, exercise testing, and exercise /sup 201/T1 scintigraphy. Of 10 patients with coronary artery disease, six had abnormal scintigrams. Two of these six had exercise-induced reversible defects, two had defects that persisted during redistribution, and two had both reversible and persistent defects. Of 14 patients with normal coronary arteries, five had negative scintigrams. Of the remaining nine patients, two had exercise-induced defects, and seven (50%) had defects involving the inferior or posterior wall that persisted during redistribution. Possible mechanisms for this latter finding are discussed. In contrast to previous reports, exercise /sup 201/T1 scintigraphy was not entirely successful in identifying patients with coronary artery disease in our patients with mitral valve prolapse.
- Research Organization:
- Cardiac Non-invasive Laboratory, Cardiovascular Section, Veterans Administration Medical Center, Long Beach, CA
- OSTI ID:
- 6567947
- Journal Information:
- Cathet. Cardiovasc. Diagn.; (United States), Journal Name: Cathet. Cardiovasc. Diagn.; (United States) Vol. 8:3; ISSN CCDID
- Country of Publication:
- United States
- Language:
- English
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59 BASIC BIOLOGICAL SCIENCES
62 RADIOLOGY AND NUCLEAR MEDICINE
ARTERIES
BETA DECAY RADIOISOTOPES
BLOOD VESSELS
BODY
CARDIOVASCULAR SYSTEM
CORONARIES
COUNTING TECHNIQUES
DAYS LIVING RADIOISOTOPES
DIAGNOSIS
DIAGNOSTIC TECHNIQUES
DIAGNOSTIC USES
DISEASES
ELECTRON CAPTURE RADIOISOTOPES
EXERCISE
HEAVY NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
NUCLEI
ODD-EVEN NUCLEI
ORGANS
PATIENTS
RADIOISOTOPE SCANNING
RADIOISOTOPES
SCINTISCANNING
SECONDS LIVING RADIOISOTOPES
THALLIUM 201
THALLIUM ISOTOPES
USES
VASCULAR DISEASES