title: Influence of hip prostheses on high energy photon dose distributions.
abstract: 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 18 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.
authors.affiliation: Cleveland Clinic Foundation, OH 44195.
authors.forename: C H
authors.initials: CH
authors.lastname: Sibata
authors.forename: H C
authors.initials: HC
authors.lastname: Mota
authors.forename: P D
authors.initials: PD
authors.lastname: Higgins
authors.forename: D
authors.initials: D
authors.lastname: Gaisser
authors.forename: J P
authors.initials: JP
authors.lastname: Saxton
authors.forename: K H
authors.initials: KH
authors.lastname: Shin
mesh_terms: D000497:Alloys; D006622:Hip Prosthesis; D006801:Humans; D010386:Pelvic Neoplasms / Q000532:radiotherapy*; D011879:Radiotherapy Dosage; D011880:Radiotherapy Planning, Computer-Assisted; D011881:Radiotherapy, Computer-Assisted; D011882:Radiotherapy, High-Energy
chemical_list: D000497:Alloys