Abstract
Wall motion studies of the left ventricle are made with commercially supplied hardware and software. The patient is imaged with the scintillation camera 10 minutes after the injection of 20 mCi labeled red cells. The camera images are digitized and stored in computer memory. The computer divides the cardiac cycle into 28 segments and stores a separate image sequentially for each segment. In order to provide images of adequate statistical quality several hundred cycles are acquired and summed by the computer, each sequence of 28 images being triggered by a signal from the R wave. Three or more projections of the heart are acquired in order to demonstrate various portions of the wall tangentially. A number of case studies are displayed in real time cine on a monitor from a video recorder to demonstrate normal wall motion and various degrees of motion impairment.
Original language | English |
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Pages (from-to) | 132 |
Number of pages | 1 |
Journal | Proceedings of SPIE - The International Society for Optical Engineering |
Volume | 152 |
DOIs | |
State | Published - Nov 15 1978 |
Event | Recent and Future Developments in Medical Imaging I 1978 - San Diego, United States Duration: Aug 28 1978 → Aug 31 1978 |
ASJC Scopus Subject Areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering