Variation of clinical target volume definition among japanese radiation oncologists in external beam radiotherapy for prostate cancer

Katsumasa Nakamura, Yoshiyuki Shioyama, Sunao Tokumaru, Nobuyuki Hayashi, Natsuo Oya, Yoshiyuki Hiraki, Kazuo Kusuhara, Takafumi Toita, Hiroaki Suefuji, Naofumi Hayabuchi, Hiromi Terashima, Masaoki Makino, Kenichi Jingu

研究成果: Contribution to journalArticle査読

23 被引用数 (Scopus)

抄録

Background: We investigated the interobserver variation in the prostate target volume and the trend toward the use of diagnostic computed tomography (CT) or magnetic resonance (MR) images for treatment planning. Methods: Twenty-five radiation oncologists were asked to draw the external contour of the prostate on CT images (0.3 cm spacing) of a patient with localized prostate cancer. They also answered a questionnaire regarding the use of diagnostic CT or MR images for the contouring. Results: Of the 25 physicians, 28% rarely or never referred to the diagnostic CT images. In contrast, the physicians tended to refer to the MR images more frequently. Approximately 50% of the physicians believed in the usefulness of contrast-enhanced images for the delineation of the prostate. As for the variation of the prostate contouring, the median craniocaudal prostate length was 36 mm (range, 21-54 mm), and the median prostate volume was 43.5 cm3 (range, 23.8-98.3 cm3). The interobserver variability was not significant in the duration as a radiation oncologist, the board certification status as radiation oncologists, and the number of treatment plans developed for prostate cancer during the last 1 year. Conclusion: A wide variety of the definitions of the prostate was found among Japanese radiation oncologists.

本文言語英語
ページ(範囲)275-280
ページ数6
ジャーナルJapanese journal of clinical oncology
38
4
DOI
出版ステータス出版済み - 4 2008
外部発表はい

All Science Journal Classification (ASJC) codes

  • 腫瘍学
  • 放射線学、核医学およびイメージング
  • 癌研究

フィンガープリント

「Variation of clinical target volume definition among japanese radiation oncologists in external beam radiotherapy for prostate cancer」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル