Automated Analysis of Vessel Diameters in MR Images

V. Lauren and G. Pisinger (Germany)

Keywords

Magnetic Resonance Imaging, Computeraided Diagnos tics, Stenosis, Vessel diameter, Circle fitting

Abstract

In this article we present a new technique to estimate the vessel diameters in three dimensional magnetic resonance angiography (MRA). Therefore a multiplanar reconstruc tion (MPR) perpendicular to the vessel center line is used. Unlike the classic method to count segmented pixels we reduce the computation of the vessel diameter to a two dimensional circle segmentation problem. In this special case the segmentation problem is a nonlinear optimization problem, which can be solved using standard optimization algorithms. Moreover the computations are fast and con verge after a few iterations.

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