Cardiac imaging with a high-speed Cine-CT Scanner: preliminary results
CT scans were obtained with a Cine-CT Scanner that uses a rapidly moving focused electron beam. The 50-msec CT scans were obtained at two transverse levels simultaneously through the hearts of a series of four normal dogs and six patients, four with coronary artery disease and two with hypertrophic cardiomyopathy. Two scanning mode options were chosen. Myocardial wall thickening and motion were studied by obtaining ten 50-msec CT exposures during one heartbeat within less than one second (Cine-CT mode). Regional myocardial blood flow was assessed by obtaining approximately 20 scans at the same level of the left ventricle. These initial studies show the feasibility of defining regional and global myocardial contraction using the Cine-CT mode, and the considerable potential for measuring regional myocardial perfusion using the flow (dynamic) mode.
- Research Organization:
- Univ. of California, San Francisco
- OSTI ID:
- 6334651
- Journal Information:
- Radiology; (United States), Vol. 152:3
- Country of Publication:
- United States
- Language:
- English
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BLOOD FLOW
DYNAMIC FUNCTION STUDIES
HEART
COMPUTERIZED TOMOGRAPHY
IMAGE SCANNERS
PERFORMANCE
DOGS
MYOCARDIUM
PATIENTS
ANIMALS
BODY
CARDIOVASCULAR SYSTEM
DIAGNOSTIC TECHNIQUES
MAMMALS
MUSCLES
ORGANS
TOMOGRAPHY
VERTEBRATES
550602* - Medicine- External Radiation in Diagnostics- (1980-)