Coronary extraction and stenosis quantification in X-ray angiographic imaging.
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.
Brieva
J
J
Departamento de Electrónica, Campus Ciudad de México, México City, Mexico. jbrieva@itesm.mx
Galvez
M
M
Toumoulin
C
C