Publications by authors named "Kayo Sakai"

Article Synopsis
  • A study was conducted to analyze how topical agents affect skin surface doses in volumetric modulated arc therapy (VMAT) for head and neck cancer patients.
  • Various thicknesses (0.1, 0.5, and 2 mm) of topical agents were used, revealing that there were no significant differences in surface dose increases among the different types.
  • The increases in surface doses were noted to be lower when a thermoplastic mask was used, indicating that the clinical impact of topical agents on skin doses in VMAT is not significant for HNC patients.
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Unlabelled: Oral care is important for patients with head and neck cancer who undergo radiotherapy because these patients encounter various symptoms, which decrease their quality of life(QOL). Oral mucositis is considered the major side effect of radiation, and the dose-volume parameters can serve as predictors of the occurrence of severe oral mucositis. Therefore, understanding radiation treatment planning(e.

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Purpose: This study introduced an A-mode portable ultrasound bladder scanner, the Lilium® α-200 (here after Lilium; Lilium Otsuka, Kanagawa, Japan), for the treatment of prostate cancer patients with hypofractionated volumetric modulated arc therapy to improve the reproducibility of bladder volume (BV).

Materials And Methods: Thirty patients were advised to maintain full BV prior to computed tomography (CT) simulation and daily treatment. Among these, the BV of 15 patients was measured using Lilium until a BV of 80% in the simulation was achieved (with the Lilium group).

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