International journal of radiation oncology, biology, physics
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Int. J. Radiat. Oncol. Biol. Phys. · Nov 2006
RPA classification has prognostic significance for surgically resected single brain metastasis.
To retrospectively evaluate prognostic factors that correlate with overall survival among patients with a surgically resected single brain metastasis. ⋯ This analysis supports the prognostic significance of the RPA classification in patients with a single brain metastasis who undergo surgical resection and adjuvant therapy. RPA class 1 patients have a very favorable prognosis with a median survival of 21.4 months.
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Int. J. Radiat. Oncol. Biol. Phys. · Nov 2006
Second malignancies after prostate brachytherapy: incidence of bladder and colorectal cancers in patients with 15 years of potential follow-up.
To report the incidence of second bladder and colorectal cancers after prostate brachytherapy. ⋯ There may be an increased but small risk of developing a second malignancy after radiation therapy for prostate cancer. This outcome could be related to radiation carcinogenesis, but more vigilant screening and thorough workup as a result of radiation side effects and predisposing conditions (e.g., genetic and environmental factors) in many of the patients found to have second malignancies likely contributed to the higher number of observed malignancies than expected.
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Int. J. Radiat. Oncol. Biol. Phys. · Nov 2006
Computer optimization of noncoplanar beam setups improves stereotactic treatment of liver tumors.
To investigate whether computer-optimized fully noncoplanar beam setups may improve treatment plans for the stereotactic treatment of liver tumors. ⋯ The use of automatically generated, fully noncoplanar beam setups results in plans that are favorable compared with coplanar techniques. Because of the automation, we found that the planning workload can be decreased from 1 to 2 days to 1 to 2 h.