Technical Program

Paper Detail

Paper:	TH-PM-OS1.2
Session:	Atlases and Nonrigid Image Registration
Time:	Thursday, April 6, 17:00 - 17:20
Presentation:	Oral
Title:	Registration of Brain Images with Tumors: Towards the Construction of Statistical Atlases for Therapy Planning
Authors:	Evangelia Zacharaki; University of Pennsylvania
	Dinggang Shen; University of Pennsylvania
	Ashraf Mohamed; University of Pennsylvania
	Christos Davatzikos; University of Pennsylvania
Abstract:	A deformable registration method has been proposed to register a brain atlas with tumor-bearing brain scans. The tumor mass effect is first simulated in the (normal) atlas, using a biomechanical model of mass effect. The tumor-bearing atlas is subsequently warped to the patient’s scan by a deformable registration method, built upon the idea of HAMMER registration algorithm developed for normal brains. The potential of using the pattern of deformation around the tumor region to optimize the location of tumor seed and other parameters of the tumor model is also explored. Quantitative evaluation on simulated data shows that the proposed method achieves accuracy similar to that achieved in registration of images without tumors. Moreover, limited registration results on real tumors are promising.

ISBI 2006 is sponsored by

and organized in cooperation with