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IR@PKUHSC  > 北京大学第一临床医学院  > 放射治疗科  > 期刊论文
学科主题: 放射医学
题名:
利用CT图像勾画前列腺癌尖部的研究
其他题名: Localization of the prostatic apex using CT for radiation treatment planning
作者: 李晓梅1; 高献书1; 郭雪梅1; 李雅刚1; 王霄英1
关键词: 前列腺尖部 ; 体层摄影术,X线计算机 ; 磁共振成像 ; 靶区勾画 ; Prostatic apex ; Tomography,X-ray computed ; Magnetic resonance imaging ; Target delineation
刊名: 中华放射肿瘤学杂志
发表日期: 2011
DOI: 10.3760/cma.j.issn.1004-4221.2011.01.016
卷: 20, 期:1, 页:45-48
收录类别: 中国科技核心期刊 ; 中文核心期刊 ; CSCD
文章类型: Journal Article
摘要: 目的 分析前列腺癌患者的CT与MRI图像,测量前列腺尖部与周围CT易辨认的解剖结构间关系,为应用CT图像勾画前列腺癌靶区提供参考依据.方法 回顾分析108例前列腺癌患者的CT与MRI图像,测最前列腺尖部到闭孔下缘、坐骨结节下缘、耻骨联合下缘及尿道球之间距离.测量前列腺体积,分析前列腺大小与尖部位置关系.结果 前列腺尖部位于尿道球上方(13.1±3.3)mm、闭孔下缘上方(11.0±5.4)mm;距离坐骨结节下缘(31.3±5.5)mm;中线矢状位上前列腺尖部在耻骨下缘上方(7.1±4.7)mm.前列腺体积大小与前列腺尖部到闭孔下缘的距离及前列腺尖部到尿道球间距离无相关性(R=0.07、-0.33,P均>0.05).结论 CT图像上勾画前列腺靶区至尿道球上6 mm可包括95%患者的前列腺尖部,勾画前列腺靶区至闭孔下缘可包括100%患者的前列腺尖部. Objective In this retrospective study, we analyzed the magnetic resonance imaging (MRI)and computed tomography(CT)scans of patients with prostate cancer to investigate the relationship between the apex of prostate and the anatomic structures visible in CT, and to provide evidence for localizing the prostatic apex in radiation treatment planning. Methods MRI and CT scans from 108 patients with prostate cancer were analyzed to measure the distance between the prostatic apex and the bottom of ischial tuberosities,the bottom of obturator foramen, the bottom of pubic symphysis and the bulb of the penis. The volume of prostate was calculated and the relationship between the size of the prostate and the localization of the prostatic apex was analyzed. Results The prostatic apex is located 13. 1 mm ±3. 3 mm superior to the bulb of the penis, 11.0 mm ± 5.4 mm superior to the bottom of obturator foramen, 31.3 mm ± 5.5 mm superior to the bottom of ischial tuberosities, and 7. 1 mm ± 4. 7 mm superior to the bottom of obturator foramen. There was no correlation between the size of prostate and the localization of the prostatic apex(R =0. 07、-0. 33, all P > 0. 05). Conclusions Ninety-five percent of patients had a prostatic apex that is above the bulb of the penis 6 mm, and 100% of patients had a prostatic apex that is above the bottom of obturator foramen.
语种: 中文
原文出处: 查看原文
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内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/42173
Appears in Collections:北京大学第一临床医学院_放射治疗科_期刊论文

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作者单位: 1.北京大学第一医院放疗科,100034
2.北京大学第一医院医影像科,100034
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