Key result
A method using the entire coronary tree from X-ray angiography to estimate 3-D heart motion and epicardial movement was developed and illustrated on clinical angiographic data.
A novel computational method successfully extracts 3-D heart motion from standard X-ray angiography using the coronary tree as a descriptor.
May enable 3-D motion analysis from routine angiography; leaves open prospective validation before clinical use.
We report on the use of the entire coronary tree as a natural descriptor of heart motion. The displacement field of the vascular net is estimated by tracking its geometrical and topological features. Afterwards, the shape and Me movement of epicardium are recovered by using a deformable model derived on the basis of general physical assumptions. The heart surface and the related motion field are represented through a spherical harmonic series. This permits a compact analytical description which is global and focal at the same time and is well suited for a multi-level analysis. Experimental results on clinical angiographic data are illustrated.
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Coppini et al. (2002) studied this question. 3-D heart motion estimation from X-ray angiography was evaluated. A method using the entire coronary tree from X-ray angiography to estimate 3-D heart motion and epicardial movement was developed and illustrated on clinical angiographic data.
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