发明名称 |
METHOD AND APPARATUS FOR THREE-DIMENSIONAL RECONSTRUCTION OF CORONARY VESSELS FROM ANGIOGRAPHIC IMAGES |
摘要 |
A method for in-room computer reconstruction of a three-dimensional (3-D) coronary arterial tree from routine biplane angiograms acquired at arbitrary angles and without using calibration objects. The method includes eight major steps: (1) acquiring biplane projection images of the coronary structure, (2) detecting, segmenting and identifying vessel centerlines and constructing a vessel hierarchy representation, (3) calculating bifurcation points and measuring vessel diameters in coronary angiograms if biplane imaging geometry data is not available, (4) determining biplane imaging parameters in terms of a rotation matrix R and a unit translation vector <o>t</o> based on the identified bifurcation points, (5) retrieving imaging parameters if biplane imaging geometry data is already known, (6) establishing the centerline correspondences of the two-dimensional arterial representations, (7) calculating and recovering the 3-D coronary arterial tree based on the calculated biplane imaging parameters, correspondences of vessel centerlines, and vessel diameters, and (8) rendering the reconstructed 3-D coronary tree and estimating an optimal view of the vasculature to minimize vessel overlap and vessel foreshortening.
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申请公布号 |
WO9749065(A1) |
申请公布日期 |
1997.12.24 |
申请号 |
WO1997US10194 |
申请日期 |
1997.06.17 |
申请人 |
ARCH DEVELOPMENT CORPORATION |
发明人 |
CHEN, SHIUH-YUNG, JAMES;CARROLL, JOHN, D.;METZ, CHARLES, E.;HOFFMANN, KENNETH, R. |
分类号 |
G06T11/00;(IPC1-7):G06T11/00 |
主分类号 |
G06T11/00 |
代理机构 |
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