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Interfraction variation and dosimetric changes during image-guided radiation therapy in prostate cancer patients
Radiation Oncology Journal ; : 127-133, 2019.
Article in English | WPRIM | ID: wpr-760998
ABSTRACT

PURPOSE:

The aim of this study was to identify volume changes and dose variations of rectum and bladder during radiation therapy in prostate cancer (PC) patients. MATERIALS AND

METHODS:

We analyzed 20 patients with PC treated with helical tomotherapy. Daily image guidance was performed. We re-contoured the entire bladder and rectum including its contents as well as the organ walls on megavoltage computed tomography once a week. Dose variations were analyzed by means of Dmedian, Dmean, Dmax, V₁₀ to V₇₅, as well as the organs at risk (OAR) volume. Further, we investigated the correlation between volume changes and changes in Dmean of OAR.
Subject(s)

Full text: Available Index: WPRIM (Western Pacific) Main subject: Prostate / Prostatic Neoplasms / Rectum / Urinary Bladder / Radiotherapy, Intensity-Modulated / Organs at Risk / Radiotherapy, Image-Guided Type of study: Etiology study / Practice guideline Limits: Humans Language: English Journal: Radiation Oncology Journal Year: 2019 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Prostate / Prostatic Neoplasms / Rectum / Urinary Bladder / Radiotherapy, Intensity-Modulated / Organs at Risk / Radiotherapy, Image-Guided Type of study: Etiology study / Practice guideline Limits: Humans Language: English Journal: Radiation Oncology Journal Year: 2019 Type: Article