文化大學機構典藏 CCUR:Item 987654321/2617
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    jsp.display-item.identifier=請使用永久網址來引用或連結此文件: https://irlib.pccu.edu.tw/handle/987654321/2617


    题名: Correlation of traditional point a with anatomic location of uterine artery and ureter in cancer of the uterine cervix
    作者: Wang, Kung-Liahng
    Yang, Yuh-Cheng
    Chao, K. S. Clifford
    Wu, Meng-Hao
    Tai, Hung-Chi
    Chen, Tze-Chien
    Huang, Ming-Chao
    Chen, Jen-Ruei
    Su, Tsung-Hsien
    Chen, Yu-Jen
    贡献者: 體育系
    关键词: point A
    brachytherapy
    laparoscopy
    laparotomy
    cervical cancer
    日期: 2007
    上传时间: 2009-11-09 10:17:45 (UTC+8)
    摘要: Purpose: Point A, used for dose specification for intracavitary brachytherapy for cervical cancer, is the point at which the uterine artery and ureter cross. This study assessed compatibility of commonly used traditional point A (TPA) and actual anatomic point A (APA).
    Methods and Materials: We visualized and placed radiopaque clips at the APA during pelvic and paraaortic lymphadenectomy in 11 patients with cervical carcinoma. Orthogonal and oblique radiographs were obtained after insertion of brachytherapy applicators. We measured the distance between the TPA and APA and estimated the brachytherapy dose to each of the two points.

    Results: A total of 64 brachytherapy treatments were performed. The mean distances between the TPA and APA were 5.2 +/- 1.0 cm on the right and 5.4 +/- 1.1 cm on the left. The estimated brachytherapy doses delivered to the APA as a percentage of the presumed 500-cGy fraction size to the TPA were 35.2% (176.6 +/- 59.0 cGy) on the right and 30.0% (150.2 +/- 42.9 cGy) on the left. The marked discrepancy in the position of the two points was not related to individual kinetic variations during brachytherapy treatment, tumor size, or bladder filling.

    Conclusions: The conventional TPA does not provide an accurate estimate of the APA determined during lymphadenectomy, indicating a need to reevaluate the current practice for determining the brachytherapy prescription for cervical cancer. (ClinicalTrials.gov Identifier, NCT00319462) (c) 2007 Elsevier Inc.
    關聯: INTERNATIONAL JOURNAL OF RADIATION ONCOLOGY BIOLOGY PHYSICS Volume: 69 Issue: 2 Pages: 498-503
    显示于类别:[體育學系] 期刊論文

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