DocumentCode :
541515
Title :
Comparison of aortic lumen area and distensibility using cine and phase contrast acquisitions
Author :
Herment, A. ; Lefort, M. ; De Cesare, A. ; Kachenoura, N. ; Frouin, F. ; Mousseaux, E.
Author_Institution :
UMRS, UPMC-Inserm, Paris, France
fYear :
2010
fDate :
26-29 Sept. 2010
Firstpage :
173
Lastpage :
176
Abstract :
The accuracy of the estimation of the aortic lumen area was investigated using an automated segmentation method (ART-FUN). The study included both Steady State Free Precession (SSFP) and Phase Contrast (PC) MR acquisition sequences. The precision of the segmented lumen area was tested against expert manual contouring for 860 aorta sections from three different MR scanners. Comparison of lumen areas and distensibility values obtained from both SSFP and PC sequences was also performed in a group of 50 subjects. While linear regressions indicated very similar manual and automated segmentations for SSFP and PC data (slope=1, r=0.99), the corresponding distensibility values were less correlated (slope=0.76, r=0.54).
Keywords :
biomedical MRI; blood vessels; image segmentation; medical image processing; regression analysis; spatial variables measurement; ART-FUN; SSFP MR acquisition sequence; aortic lumen area estimation accuracy; automated segmentation method; distensibility; linear regressions; phase contrast MR acquisition sequence; steady state free precession; Accuracy; Biomedical imaging; Estimation; Image segmentation; Magnetic resonance imaging; Manuals;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Computing in Cardiology, 2010
Conference_Location :
Belfast
ISSN :
0276-6547
Print_ISBN :
978-1-4244-7318-2
Type :
conf
Filename :
5737937
Link To Document :
بازگشت