DocumentCode :
2309206
Title :
Atlas-based segmentation of pathological brain MR images
Author :
Cuadra, M. Bach ; Polio, C. ; Bardera, A. ; Cuisenaire, O. ; Villemure, J.G. ; Thiran, J.-Ph.
Author_Institution :
Signal Process. Inst., Swiss Fed. Inst. of Technol., Lausanne, Switzerland
Volume :
1
fYear :
2003
fDate :
14-17 Sept. 2003
Abstract :
A method for brain atlas deformation in presence of large space-occupying tumors, based on an a priori model of lesion growth that assumes radial expansion of the lesion from its starting point is proposed. First, an affine registration brings the atlas and the patient into global correspondence. Then, the seeding of a synthetic tumor into the brain atlas provides a template for the lesion. Finally, the seeded atlas is deformed, combining a method derived from optical flow principles and a model of lesion growth (MLG). Results show that the method can be applied to the automatic segmentation of structures and substructures in brains with gross deformation, with important medical applications in neurosurgery, radiosurgery and radiotherapy.
Keywords :
biomedical MRI; image segmentation; image sequences; medical image processing; tumours; affine registration; atlas-based segmentation; lesion growth priori model; optical flow principles; pathological brain MR images; space-occupying tumors; Biomedical equipment; Biomedical optical imaging; Brain modeling; Deformable models; Image motion analysis; Image segmentation; Lesions; Medical services; Neoplasms; Pathology;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Image Processing, 2003. ICIP 2003. Proceedings. 2003 International Conference on
ISSN :
1522-4880
Print_ISBN :
0-7803-7750-8
Type :
conf
DOI :
10.1109/ICIP.2003.1247026
Filename :
1247026
Link To Document :
بازگشت