Title :
Three-dimensional geometric correction for densitometric measurements of coronary arteries in biplane angiographic sequences
Author :
Sany, L. ; Zanca, M. ; Boire, J.-Y. ; Veyre, A. ; Cassagnes, J.
Author_Institution :
INSERM, Clermont-Ferrand, France
fDate :
31 Oct-3 Nov 1996
Abstract :
In digital angiography, densitometric information inside the arterial bed are widely used to calculate spatial variations in cross-sectional areas. These measurements are influenced by the orientation of the stenotic segment with respect to the image intensifier. Here, the authors show that these discrepancies can be appreciably removed by a three-dimensional correction using two projection views and a regularization step
Keywords :
angiocardiography; biomedical measurement; densitometry; diagnostic radiography; geometry; image sequences; medical image processing; arterial bed; biplane angiographic sequences; coronary arteries; cross-sectional areas; densitometric measurements; medical diagnostic imaging; projection views; regularization step; spatial variations calculation; stenotic segment orientation; three-dimensional correction; three-dimensional geometric correction; Angiography; Arteries; Blood flow; Cardiology; Density measurement; Engineering in Medicine and Biology Society; Image intensifiers; Image reconstruction; Image segmentation; Sequences;
Conference_Titel :
Engineering in Medicine and Biology Society, 1996. Bridging Disciplines for Biomedicine. Proceedings of the 18th Annual International Conference of the IEEE
Conference_Location :
Amsterdam
Print_ISBN :
0-7803-3811-1
DOI :
10.1109/IEMBS.1996.651913
