X-ray or gamma ray systems or devices – Specific application – Computerized tomography
Reexamination Certificate
2006-02-28
2006-02-28
Bruce, David V (Department: 2882)
X-ray or gamma ray systems or devices
Specific application
Computerized tomography
C378S015000, C378S901000
Reexamination Certificate
active
07006593
ABSTRACT:
In an X-ray CT apparatus having a multi-slice detector, the retrospective ECG (Electrocardiography) gating imaging is applied to helical scans. Discontinuity of projection data generated in the scans is interpolated using data at a heartbeat time phase in 180-degree opposite relation to reduce motion artifacts. Further, projection data at an arbitrary slicing position and in at arbitrary heartbeat time phase are formed utilizing continuous divided projection data obtained above, and by properly combining or gathering them, a tomogram of whole heart, a three-dimensional image thereof, and further, a three-dimensional cardiac moving image in heartbeat time phases with an arbitrary time interval can be continuously and smoothly created.
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Kokubun Hiroto
Miyazaki Osamu
Nakazawa Tetsuo
Bruce David V
Cooper & Dunham LLP
Hitachi Medical Corporation
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