Poster — Wed Eve—48: An Opposed Matched Beam IMRT Technique for Prostate Cancer Patients with Bilateral Hip Prosthesis

When intensity modulated radiation therapy (IMRT) is used to treat prostate patients with bilateral metal hip implants, beams which would otherwise be oriented in a lateral direction must be angled toward a posterior direction in order to avoid incidence through the prostheses. This has the undesirable effect of increasing the volume of rectum subtended by these beam, thereby either increasing rectal dose or reducing target coverage. We report …