Title :
Effect of Ultrasound Probe on Dose Delivery During Real-time Ultrasound-Guided Tumor Tracking
Author :
Wu, Jianzhou ; Dandekar, Omkar ; Nazareth, Daryl ; Lei, Peng ; Souza, Warren D. ; Shekhar, Raj
Author_Institution :
Dept. of Radiat. Oncology, Maryland Univ. Sch. of Med., Baltimore, MD
Abstract :
Ultrasound is a noninvasive and less costly modality for real-time imaging of soft tissues. It has the capability of tracking soft tissue at levels of submillimeter precision even in the presence of radiation beams. The effect of a transducer on radiation dose is not fully known. The best imaging location for an ultrasound transducer happens to coincide with the path of an anterior-posterior beam in intensity modulated radiation therapy (IMRT). This study indicates a significant change in dose when this juxtaposition occurs. If the anterior-posterior beam is avoided in IMRT planning, however, the effect of the transducer on radiotherapy is found to be negligible
Keywords :
biomedical ultrasonics; cancer; dosimetry; radiation therapy; tumours; ultrasonic transducers; IMRT planning; anterior-posterior beam; dose delivery; intensity modulated radiation therapy; real-time ultrasound-guided tumor tracking; soft tissue; ultrasound probe; ultrasound transducer; Biological tissues; Biomedical applications of radiation; Magnetic resonance imaging; Medical diagnostic imaging; Neoplasms; Oncology; Probes; Radiology; Ultrasonic imaging; Ultrasonic transducers;
Conference_Titel :
Engineering in Medicine and Biology Society, 2006. EMBS '06. 28th Annual International Conference of the IEEE
Print_ISBN :
1-4244-0032-5
Electronic_ISBN :
1557-170X
DOI :
10.1109/IEMBS.2006.260076
