DocumentCode :
1822766
Title :
Estimation of intra-operative brain shift using a tracked laser range scanner
Author :
Siyi Ding ; Miga, M.I. ; Thompson, R.C. ; Dumpuri, P. ; Aize Cao ; Dawant, B.M.
Author_Institution :
Vanderbilt Univ., Nashville
fYear :
2007
fDate :
22-26 Aug. 2007
Firstpage :
848
Lastpage :
851
Abstract :
Intra-operative brain shift limits the usefulness of image-guided neurosurgery systems (IGNS), which are based on pre-operative images. Methods that are being developed to address this problem need intra-operative measurements as input. In this work, we present an intra-operative surface shift measurement technique that relies on a tracked 3D laser range scanner. This scanner acquires both 3D range data and 2D images, which are co-registered. We compare two methods to derive displacements at every point in the field of view. The first one relies on the registration of the 2D images; the second relies on the direct 3D registration of the 3D range data. Our results, based on five data sets, show that the 2D method is preferable.
Keywords :
biomedical optical imaging; laser applications in medicine; neurophysiology; surgery; IGNS; image-guided neurosurgery systems; intraoperative brain shift estimation; preoperative images; tracked laser range scanner; Biomedical engineering; Biomedical imaging; Biomedical measurements; Clouds; Laser modes; Neoplasms; Neurosurgery; Pixel; Surface emitting lasers; Surgery; Algorithms; Brain Neoplasms; Humans; Image Interpretation, Computer-Assisted; Imaging, Three-Dimensional; Intraoperative Care; Lasers; Motion; Neurosurgical Procedures; Reproducibility of Results; Sensitivity and Specificity; Subtraction Technique; Surgery, Computer-Assisted;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Engineering in Medicine and Biology Society, 2007. EMBS 2007. 29th Annual International Conference of the IEEE
Conference_Location :
Lyon
ISSN :
1557-170X
Print_ISBN :
978-1-4244-0787-3
Type :
conf
DOI :
10.1109/IEMBS.2007.4352423
Filename :
4352423
Link To Document :
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