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Int J Radiat Oncol Biol Phys
January 2025
The Royal Marsden NHS Foundation Trust, London SM2 5PT, UK; Radiotherapy and Imaging Division, Institute of Cancer Research, London SM2 5NG, UK.
Purpose: In the PACE-B study, a non-randomised comparison of toxicity outcomes between stereotactic body radiotherapy (SBRT) platforms revealed fewer urinary side-effects with CyberKnife (CK) compared to conventional linac (CL) SBRT. This analysis compares baseline characteristics and planning dosimetry between the CK-SBRT and CL-SBRT cohorts in PACE-B, aiming to provide insight into possible reasons for differing toxicity outcomes between the platforms.
Methods: Dosimetric parameters for the surrogate urethra (SU), contoured urethra, bladder, bladder trigone (BT), and rectum were extracted from available CT planning scans of PACE-B SBRT patients.
Clin Transl Oncol
January 2025
Department of Radiation Oncology, HM Hospitales, C/Oña 10, 28050, Madrid, Spain.
Objective: To evaluate the feasibility and tolerance of ultra-hypofractionated SABR (stereotactic ablative radiation therapy) protocol following radical prostatectomy.
Patients And Methods: We included patients undergoing adjuvant or salvage SABR between April 2019 and April 2023 targeting the surgical bed and pelvic lymph nodes up to a total dose of 36.25 Gy (7.
Brachytherapy
January 2025
BC Cancer Kelowna, Kelowna, British Columbia.
Purpose: High dose rate (HDR) brachytherapy is increasingly adopted for dose escalation in prostate cancer treatment. We report the clinical efficacy and toxicity of HDR prostate brachytherapy combined with external beam radiotherapy (EBRT) and evaluate the predictability of the biochemical definition of cure of 4-year PSA ≤0.2 ng/mL for failure free survival (FFS).
View Article and Find Full Text PDFInt J Radiat Oncol Biol Phys
January 2025
Department of Radiation Oncology, West Virginia University, Morgantown, WV, USA.
Purpose: A single phase III trial has demonstrated that prostate radiotherapy with a focal, intra-prostatic "microboost" can improve disease control without an overall increase in toxicity. It is unclear how these results generalize to other treatment schedules and protocols.
Methods: A systematic search of PubMed and the Cochrane Review was performed for studies published on or before September 1, 2023.
Clin Transl Radiat Oncol
March 2025
Department of Radiation Oncology, Oncology Institute of Southern Switzerland, EOC, Bellinzona, Switzerland.
Purpose: In prostate cancer patients, high radiation doses to the urethra have been associated with an increased risk of severe genitourinary toxicity following dose-escalated radiotherapy. Urethra-sparing techniques have emerged as a promising approach to reduce urinary toxicity. This international survey aims to evaluate current global practices in urethra-sparing and explore future directions for the implementation of this technique in external beam radiotherapy (EBRT) for prostate cancer.
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