3D Ultrasound-based patient positioning for radiotherapy - art. no. 61411K

Title3D Ultrasound-based patient positioning for radiotherapy - art. no. 61411K
Publication TypeJournal Article
Year of Publication2006
AuthorsWang, M. H., R. N. Rohling, N. Archip, and B. G. Clark
Secondary AuthorsCleary, K. R., and R. L. Galloway
JournalMedical Imaging 2006: Visualization, Image-Guided Procedures, and Display

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-to-ultrasound 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.


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