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Proceedings Paper

3D ultrasound-based patient positioning for radiotherapy
Author(s): Michael H. Wang; Robert N. Rohling; Neculai Archip; Brenda G. Clark
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Paper Abstract

A new 3D ultrasound-based patient positioning system for target localisation during radiotherapy is described. Our system incorporates the use of tracked 3D ultrasound scans of the target anatomy acquired using a dedicated 3D ultrasound probe during both the simulation and treatment sessions, fully automatic 3D ultrasound-toultrasound registration, and OPTOTRAK IRLEDs for registering simulation CT to ultrasound data. The accuracy of the entire radiotherapy treatment process resulting from the use of our system, from simulation to the delivery of radiation, has been validated on a phantom. The overall positioning error is less than 5mm, which includes errors from estimation of the irradiated region location in the phantom.

Paper Details

Date Published: 10 March 2006
PDF: 9 pages
Proc. SPIE 6141, Medical Imaging 2006: Visualization, Image-Guided Procedures, and Display, 61411K (10 March 2006); doi: 10.1117/12.653225
Show Author Affiliations
Michael H. Wang, Univ. of British Columbia (Canada)
Robert N. Rohling, Univ. of British Columbia (Canada)
Neculai Archip, Brigham and Women's Hospital, Harvard Medical School (United States)
Brenda G. Clark, Ottawa Hospital Regional Cancer Ctr. (Canada)

Published in SPIE Proceedings Vol. 6141:
Medical Imaging 2006: Visualization, Image-Guided Procedures, and Display
Kevin R. Cleary; Robert L. Galloway, Jr., Editor(s)

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