conformal radiation therapy


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Related to conformal radiation therapy: radiotherapy, Intensity modulated radiation therapy, IMRT

conformal radiation therapy

Radiation therapy in which tumors are imaged in three-dimensions and then treated with small beams of radiation adjusted for their size, unique shape, and location. The objective is to deliver the radiation directly to the tumor and to make the energy conform to the unique shape of the tumor, leaving neighboring healthy tissue unaffected by the damaging effects. This therapy is used to treat tumors previously treated with external beam radiotherapy, tumors for which external beam radiation is also planned, and tumors that are difficult to reach or that have encircled healthy organs or tissues. Synonym: intensity-modulated radiation therapy
References in periodicals archive ?
Long-term toxicity following 3D conformal radiation therapy for prostate cancer from the RTOG 9406 phase I/II dose escalation study.
In some studies, 3-D conformal radiation therapy has been shown to facilitate dose escalation in higher-risk patients, which leads to better disease-free survival while decreasing toxicity.
Doses of 26 Gy have been used when a combination of chemoreduction, local therapy and conformal radiation therapy are delivered.
The current investigation follows up a recently published study validating the superior efficacy of high-dose versus conventional-dose conformal radiation therapy for reducing the risk of biochemical failure in men with clinically localized prostate cancer.
Graham et al., "Primary analysis of the phase II component of a phase I/II dose intensification study using three-dimensional conformal radiation therapy and concurrent chemotherapy for patients with inoperable nonsmall-cell lung cancer: RTOG 0117," Journal of Clinical Oncology, vol.
Eight patients had 3D conformal radiation therapy (3D-CRT) (66 cGy, 33 fractions).
Two days later, the patients were administered 5-flurocytosine and valganciclovir-prodrug therapy for 1-3 weeks, plus conventional-dose (70-74 Gy), three-dimensional conformal radiation therapy. Five of the 15 patients also received androgen deprivation therapy.
Radiation exposure to the corporeal bodies during 3-dimensional conformal radiation therapy for prostate cancer.
Comparison of conventional-dose vs high-dose conformal radiation therapy in clinically localized adenocarcinoma of the prostate: a randomized controlled trial.
Randomized Trial Comparing Conventional-Dose With High-Dose Conformal Radiation Therapy in Early-Stage Adenocarcinoma of the Prostate: Long-Term Results From Proton Radiation Oncology Group/American College of Radiology 95-09.

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