document: Quantitative analysis of reconstructed 3-D coronary arterial tree and intracoronary devices Traditional quantitative coronary angiography is performed on two-dimensional -LRB- 2-D -RRB- projection views . These views are chosen by the angiographer to minimize vessel overlap and foreshortening . With 2-D projection views that are acquired in this nonstandardized fashion , however , there is no way to know or estimate how much error occurs in the QCA process . Furthermore , coronary arteries possess a curvilinear shape and undergo a cyclical deformation due to their attachment to the myocardium . Therefore , it is necessary to obtain three-dimensional -LRB- 3-D -RRB- information to best describe and quantify the dynamic curvilinear nature of the human coronary artery . Using a patient-specific 3-D coronary reconstruction algorithm and routine angiographic images , a new technique is proposed to describe : -LRB- 1 -RRB- the curvilinear nature of 3-D coronary arteries and intracoronary devices ; -LRB- 2 -RRB- the magnitude of the arterial deformation caused by intracoronary devices and due to heart motion ; and -LRB- 3 -RRB- optimal view -LRB- s -RRB- with respect to the desired `` pathway '' for delivering intracoronary devices
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