| CPC G06T 5/50 (2013.01) [A61B 6/481 (2013.01); A61B 6/504 (2013.01); G06T 7/0016 (2013.01); G06T 15/00 (2013.01); G06T 2200/04 (2013.01); G06T 2207/20221 (2013.01); G06T 2207/30048 (2013.01); G06T 2207/30104 (2013.01)] | 17 Claims |
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17. An angiography apparatus for spatiotemporal fusion of time-resolved angiographic data sets, the angiography apparatus comprising:
an angiography unit configured to:
acquire a first time-resolved angiographic three-dimensional (3D) data set for a patient who has received a first contrast agent administration at a first site; and
acquire a second time-resolved angiographic 3D data set for the patient who has received a second contrast agent administration at a second site different from the first site; and
an image processing unit configured to:
obtain a first four-dimensional (4D) reconstruction from the first time-resolved angiographic 3D data set;
obtain a second 4D reconstruction from the second time-resolved angiographic 3D data set;
determine a common vascular region represented by both the first 4D reconstruction and the second 4D reconstruction of the patient;
determine, from the first 4D reconstruction, a first time point or first time course relating to an appearance of a first contrast agent bolus of the first contrast agent administration in the common vascular region;
determine, from the second 4D reconstruction, a second time point or second time course relating to an appearance of a second contrast agent bolus of the second contrast agent administration in the common vascular region;
synchronize the first 4D reconstruction and the second 4D reconstruction based on the first time point and the second time point or the first time course and the second time course; and
fuse the synchronized 4D reconstructions.
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