Method and system for cardiac computed tomography
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United States of America Patent
Stats
-
Jan 8, 1980
Grant Date -
N/A
app pub date -
Apr 22, 1977
filing date -
Apr 22, 1977
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
System and method are set forth enabling reconstruction of images of desired 'frozen action' cross-sections of the heart or of other bodily organs or similar objects undergoing cyclic displacements. Utilizing a computed tomography scanning apparatus data is acquired during one or more full rotational cycles and suitably stored. The said data corresponding to various angular projections can then be correlated with the desired portion of the object's cyclical motion by means of a reference signal associated with the motion, such as that derived through an electrocardiogram--where a heart is the object of interest. Data taking can also be limited to only the times when the desired portion of the cyclical motion is occurring. A sequential presentation of a plurality of said frozen action cross-sections provides a motion picture of the moving object.
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