1.
Conf Proc IEEE Eng Med Biol Soc
; 2004: 1714-7, 2004.
Artigo
em Inglês
| MEDLINE
| ID: mdl-17272035
RESUMO
This work describes a method to quantify stenosis in X-ray coronary angiography. Vascular edge extraction is first performed based on a deformable spline algorithm. It makes use of directional S-Gabor filters to build an external energy field that is then used in a snake optimisation scheme. A string matching technique is then applied to match the contour points and obtain a trace between the matched points. This trace allows then computing the vessel diameter and deriving quantitative stenosis measurements. Experimental results are presented on simulated data and real images.