3-DIMENSIONAL RECONSTRUCTION OF INTRACRANIAL VESSELS FROM BIPLANE PROJECTION VIEWS

The three-dimensional (3D) reconstruction of intracerebral vessels fro m two-dimensional (2D) projection views is an important clinical probl em that, so far, has eluded solution. This report describes a new appr oach that uses projection images to build arterial trees progressively from an underlying 3D network, using a new method to pair shadow imag es on widely separated projection views. As a test of our general meth odology, we have reconstructed a middle cerebral arterial tree from tw o projection views of a magnetic resonance dataset and have tested the accuracy of reconstruction against the original 3D dataset. This repo rt describes the general approach to 3D vascular reconstruction and th e computer program used to perform the final reconstruction step. The results suggest that accurate, 3D reconstruction of intracranial vesse ls is indeed possible from as few as two projection views.