Title :
Frameless stereotactic localization and multimodal image registration using DSA/CT/MRI
Author :
Fei, Baowi ; Zhuang, Tiange ; Hu, Jie ; Zhou, Fanmin
Author_Institution :
Dept. of Biomed. Eng., Shanghai Jiaotong Univ., China
fDate :
29 Oct-1 Nov 1998
Abstract :
A novel frameless stereotactic localization method and multimodal image registration techniques for computer assisted surgery are presented. Using four external markers, the position of brain tissue can be calculated by two different DSA projection images, CT slices and MRI slices respectively. The different anatomical information (tone, soft tissue and vessel) obtained from CT, MRI and DSA can be registered together. Using DSA, the locating accuracy of phantom experiment is 0.5 mm, the accuracy of skull experiment is 2.0 mm. The registration accuracy of DSA/CT images of skull is 2.0-2.5 mm. The volumetric representation of registered DSA and MRI images of human head shows satisfying results
Keywords :
biomedical MRI; brain; computerised tomography; diagnostic radiography; image registration; medical image processing; surgery; CT; DSA; MRI; brain tissue position; computer assisted surgery; digital subtraction angiography; external markers; frameless stereotactic localization; human head; magnetic resonance imaging; medical diagnostic imaging; multimodal image registration; skull experiment accuracy; Biological tissues; Brain; Computed tomography; Head; Humans; Image registration; Imaging phantoms; Magnetic resonance imaging; Skull; Surgery;
Conference_Titel :
Engineering in Medicine and Biology Society, 1998. Proceedings of the 20th Annual International Conference of the IEEE
Conference_Location :
Hong Kong
Print_ISBN :
0-7803-5164-9
DOI :
10.1109/IEMBS.1998.745510
