Title :
A Method for Large Vessels/Brain Activity Colocalization
Author :
Aguerre, C. ; Desbarats, P. ; de Senneville, B.D. ; Herigault, G. ; Dilharreguy, D. ; Moonen, C.T.W.
Author_Institution :
IMF, Bordeaux Univ., France
Abstract :
FMRI is a technique using BOLD contrast to identify areas of cerebral activity. Large vessels contribution to this signal induces a delay in the measured response. It is therefore imperative to precisely colocalize brain activity and large veins. MR venography is an acquisition procedure using phase variations to reinforce cerebral vasculature on anatomical data. In this article, we present a method to register brain large veins and activation map in order to achieve an accurate interpretation of measured activity.
Keywords :
biomedical MRI; blood vessels; brain; haemodynamics; image registration; medical image processing; neurophysiology; BOLD contrast; FMRI; MR venography; activation map; anatomical data; blood vessels; brain activity colocalization; cerebral activity; cerebral vasculature; image registration; Activation analysis; Biomedical imaging; Blood vessels; Brain; Delay; Image registration; Image segmentation; Magnetic resonance imaging; Protocols; Veins; Activation analysis; Blood vessels; Brain; Image registration; Magnetic resonance imaging;
Conference_Titel :
Image Processing, 2006 IEEE International Conference on
Conference_Location :
Atlanta, GA
Print_ISBN :
1-4244-0480-0
DOI :
10.1109/ICIP.2006.313002
