Influence of hip prostheses on high energy photon dose distributions

Radiotherapy treatment of patients having a hip prosthesis is a common problem facing dosimetrists and physicists when the treatment plan requires irradiation of the pelvic area. To quantify the perturbation of these devices, attenuation studies were done with 6 and I8 MV photon beams using various...

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Bibliographic Details
Published inInternational journal of radiation oncology, biology, physics Vol. 18; no. 2; pp. 455 - 461
Main Authors Sibata, C.H., Mota, H.C., Higgins, P.D., Gaisser, D., Saxton, J.P., Shin, K.H.
Format Journal Article
LanguageEnglish
Published United States Elsevier Inc 01.02.1990
Subjects
Alloys
Beam perturbation
Dose distribution
Femoral hip prosthesis
Hip Prosthesis
Humans
Pelvic Neoplasms - radiotherapy
Radiotherapy Dosage
Radiotherapy Planning, Computer-Assisted
Radiotherapy treatment planning
Radiotherapy, Computer-Assisted
Radiotherapy, High-Energy
Radiotherapy treatment planning
Beam perturbation
Femoral hip prosthesis
Dose distribution
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Summary:Radiotherapy treatment of patients having a hip prosthesis is a common problem facing dosimetrists and physicists when the treatment plan requires irradiation of the pelvic area. To quantify the perturbation of these devices, attenuation studies were done with 6 and I8 MV photon beams using various hip prostheses models with varying size and composition. These studies have shown that an attenuation of as much as 50% can be found in a single beam profile under the prosthesis. We have studied the capability of a dose planning system to predict the transmission of these devices as compared with measurements.
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ISSN:0360-3016
1879-355X
DOI:10.1016/0360-3016(90)90115-Z