International journal of radiation oncology, biology, physics
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Int. J. Radiat. Oncol. Biol. Phys. · Apr 2007
Observation of interfractional variations in lung tumor position using respiratory gated and ungated megavoltage cone-beam computed tomography.
To evaluate the use of megavoltage cone-beam computed tomography (MV CBCT) to measure interfractional variation in lung tumor position. ⋯ The MV CBCT technique can be used to image lung tumors and may prove valuable for image-guided radiotherapy. Our conclusions must be verified in view of the small patient number.
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Int. J. Radiat. Oncol. Biol. Phys. · Apr 2007
Multicenter StudyImproved posttreatment functional outcome is associated with better survival in patients irradiated for metastatic spinal cord compression.
To evaluate the potential prognostic impact of the effect of radiotherapy (RT) on motor function and of the post-RT ambulatory status on survival in metastatic spinal cord compression (MSCC) patients. ⋯ The response to RT and the post-RT ambulatory status are important predictors for survival in MSCC patients. This finding can be used by physicians to stratify future studies, plan further therapy, and improve follow-up strategy in these patients.
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Int. J. Radiat. Oncol. Biol. Phys. · Apr 2007
Multicenter StudyImpact of intensity-modulated radiotherapy on health-related quality of life for head and neck cancer patients: matched-pair comparison with conventional radiotherapy.
To assess the benefit of intensity-modulated radiotherapy (IMRT) compared with conventional RT for the quality of life (QOL) of head and neck cancer survivors. ⋯ The QOL assessment of head and neck cancer survivors demonstrated the benefit of IMRT, particularly in the areas of salivary dysfunction and oral discomfort.
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Int. J. Radiat. Oncol. Biol. Phys. · Apr 2007
Multicenter StudyPredictors for rectal and intestinal acute toxicities during prostate cancer high-dose 3D-CRT: results of a prospective multicenter study.
To find predictors for rectal and intestinal acute toxicity in patients with prostate cancer treated with > or =70 Gy conformal radiotherapy. ⋯ The mean rectal dose correlated with acute rectal/intestinal toxicity in three-dimensional conformal radiotherapy for prostate cancer, and hormonal therapy and the use of anticoagulants/antiaggregants were protective. According to the moderate/severe injury scores on the self-assessed questionnaire, several clinical and dose-volume parameters were independently predictive for particular symptoms.
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Int. J. Radiat. Oncol. Biol. Phys. · Apr 2007
Radiation therapy for control of soft-tissue sarcomas resected with positive margins.
Positive margins (PM) remain after surgery in some soft-tissue sarcoma (STS) patients. We investigated the efficacy of radiation therapy (RT) in STS patients with PM. ⋯ Local control is achieved in most PM STS patients undergoing RT. Doses >64 Gy, superficial location, and extremity site are associated with improved LC. OS is worse in patients with tumors with lesions >5 cm, grossly positive margins, and after local failure.