Title
Non-invasive tumor localization by 3D registration of range sensor and computer tomography images.
Abstract
This paper describes a patient positioning method that allows a non-invasive localization of tumors in the field of conformal radiotherapy for the treatment of cancers located in the head. The proposed methodology uses computer tomography and range sensor images of the patient's head; on the one hand tomography data has information of tumor localization related to the patient's head and on the other hand range sensor images has information of patient's face localization into the treatment's room. A 3D multimodality registration of computer tomography and range sensor images and the calibration of range sensor at radiotherapy treatment room avoid the use of stereotactic frame for patient's positioning. Tests performed with human data proved that the registration algorithm is accurate (0.1mm mean distance between homologous points) and robust even for facial expression changes.
Year
DOI
Venue
2007
10.1109/ENC.2007.27
ENC
Keywords
Field
DocType
cancer,image sensors,radiation therapy,image registration,computed tomography,facial expression
Computer vision,Treatment room,Image sensor,Computer science,Tomography,Radiation therapy,Artificial intelligence,Image registration
Conference
ISBN
Citations 
PageRank 
0-7695-2899-6
0
0.34
References 
Authors
5
4