International journal of radiation oncology, biology, physics
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Int. J. Radiat. Oncol. Biol. Phys. · Nov 2008
Randomized Controlled TrialLarge cohort dose-volume response analysis of parotid gland function after radiotherapy: intensity-modulated versus conventional radiotherapy.
To compare parotid gland dose-volume response relationships in a large cohort of patients treated with intensity-modulated (IMRT) and conventional radiotherapy (CRT). ⋯ One year after radiotherapy, no difference existed in the mean dose-based NTCP curves for IMRT and CRT. Early after radiotherapy (up to 6 months) mean dose based (Lyman) models failed to fully describe the effects of radiotherapy on the parotid glands.
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Int. J. Radiat. Oncol. Biol. Phys. · Nov 2008
Controlled Clinical TrialLong-term outcomes of IMRT for breast cancer: a single-institution cohort analysis.
To evaluate long-term outcomes of adjuvant breast intensity-modulated radiation therapy (IMRT), with a comparison cohort receiving conventional radiation (cRT) during the same period. ⋯ Patients treated with breast IMRT had decreased acute skin toxicity, and long-term follow-up shows excellent local control similar to a contemporaneous cohort treated with cRT.
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Int. J. Radiat. Oncol. Biol. Phys. · Nov 2008
Intraoperative radiation therapy for locally advanced and recurrent soft-tissue sarcomas in adults.
To analyze the outcomes of and identify prognostic factors for patients treated with surgery and intraoperative radiotherapy (IORT) for locally advanced and recurrent soft-tissue sarcoma in adults from a single institution. ⋯ IORT after tumor reductive surgery is well tolerated and seems to confer IFC in carefully selected patients.
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Int. J. Radiat. Oncol. Biol. Phys. · Nov 2008
Comparative Study Controlled Clinical TrialVolumetric modulated arc therapy for delivery of prostate radiotherapy: comparison with intensity-modulated radiotherapy and three-dimensional conformal radiotherapy.
Volumetric modulated arc therapy (VMAT) is a novel form of intensity-modulated radiotherapy (IMRT) optimization that allows the radiation dose to be delivered in a single gantry rotation of up to 360 degrees , using either a constant dose rate (cdr-VMAT) or variable dose rate (vdr-VMAT) during rotation. The goal of this study was to compare VMAT prostate RT plans with three-dimensional conformal RT (3D-CRT) and IMRT plans. ⋯ The IMRT and VMAT techniques achieved highly conformal treatment plans. The vdr-VMAT technique resulted in more favorable dose distributions than the IMRT or cdr-VMAT techniques, and reduced the monitor units required compared with IMRT.
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Int. J. Radiat. Oncol. Biol. Phys. · Nov 2008
Tumor location, interval between surgery and radiotherapy, and boost technique influence local control after breast-conserving surgery and radiation: retrospective analysis of monoinstitutional long-term results.
To obtain long-term data on local tumor control after treatment of invasive breast cancer by breast-conserving surgery and adjuvant radiotherapy (RT), in consideration of the interstitial high-dose-rate boost technique. ⋯ Tumor location, interval between surgery and RT, and boost technique might influence local control of breast cancer treated by breast-conserving surgery and RT.