实用医学杂志2013，Vol.29Issue(11)：1770-1772,3.DOI:10.3969/j.issn.1006-5725.2013.11.020
CT与MRI 融合图像在确定前列腺癌调强放疗靶区中的应用研究
Application of CT-MRI fusion images in determing the target region in IMRT for prostate cancer
摘要
Abstract
Objective To explore the apllication of GT-MRI fusion images in deterning the target region in intensity-modulated radiation therapy (IMRT) for prostate cancer. Methods All the patients underwent pelvic CT and MRI scans. All of the collected images were automatically matched and then were sent to the treatment planning system for image fusion. The target region, and the rectum and bladder were delineated based on the CT and CT-MRI fusion images. Two kinds of IMRT planning were designed. The volume of target region and the irradiated volume of the rectum and bladder were compared between the two approaches. Results The mean CTV on CT and CT-MRI fusion images was 75.13 cm3 and 56.67 cm3, respectively (t= 2.522, P= 0.024). Conclusions The mean CTV on CT-MRI fusion imagea is smaller than that on CT images. IMRT based on CT-MRI fusion images for determing the target region can obviously reduce the irradiated volume of the rectum receiving high dose of irradiation.关键词
前列腺肿瘤/体层摄影术,X线计算机/磁共振成像/图像融合Key words
Prostatic neoplasms/ Tomography, X-ray computed/ Magnetic resonance imaging/ Image fusion引用本文复制引用
胡玉兰,徐海荣,刘佳宾..CT与MRI 融合图像在确定前列腺癌调强放疗靶区中的应用研究[J].实用医学杂志,2013,29(11):1770-1772,3.基金项目
广东省科技计划项目(编号:2010A030500009) （编号:2010A030500009）
广州市科技攻关项目(编号:2010J-D00061) （编号:2010J-D00061）
