头颈部肿瘤在MR图像引导下热塑网模拟融合定位放疗技术探索  

Explore of MR Image Guided Radiotherapy Techniques with the Thermoplastic Network Simulation Fusion Location in Head-and-neck Cancer

作　　者：杨述根[1] 杨庆龙[1] 杨波[1] 陆笑非[1] 欧洪琼[1] 

机构地区：[1]泸州医学院附属医院,四川泸州646000

出　　处：《中国医学创新》2013年第27期78-80,共3页Medical Innovation of China

摘　　要：目的:探索MR/CT在头颈部肿瘤热塑网融合模拟定位放疗的灵活性和准确性。方法:利用本院引进PHILIPS公司生产的1.5TMR机与肿瘤模拟定位CT机以及肿瘤科医生自制的热塑网自动成型器融合定位装置。自制木板,板上设置非金属定位固定点;采用仰卧,Q-body线圈,首先行头颈部常规扫描T2WI/T1WI/SPIR/TRA,FOV/RFOV,230/70 mm,Slices/thickness/gap,24/5.0 mm/0 mm;SPIR/COR,FOV/RFOV,280/70 mm,Slices/thickness/gap,20/5.0 mm/0 mm;T2WI/SAG,FOV/RFOV,280/70 mm,Slices/thickness/gap,20/5.0 mm/0 mm。然后做T1WI/TRA增强扫描,FOV/RFOV,230/70 mm,Slices/thickness/gap,70/2.5 mm/0MM,T2WISPIR/COR,FOV/RFOV,280/80 mm,Slices/thickness/gap,20/5.0 mm/0MM。扫描结束后将数据传入PACS系统,供肿瘤治疗室计划选用。结果:通过近年大量的颈部、耳鼻喉以及口腔颌面部(涉及鼻腔、鼻窦、唇和口腔、口底、鼻咽、口咽、喉咽、喉部、甲状腺、大唾液腺、颅底、下颌骨)等肿瘤的定位总结分析,单纯MR、CT模拟定位或肉眼观定位,三者存在实质性的差异,其MR定位比其它设备定位更加全面安全准确。结论:MR与恰当的热塑网融合模拟定位提高了放疗定位的精确度和科学性,减少了正常组织或器官的损伤,进一步提高了头颈部肿瘤的放疗质量。Objective： To explore the flexibility and accuracy of MR/CT simulator radiotherapy with thermoplastic network fusion in head -and- neck cancer. Method： 1.5T MR machine introduced to our hospital which was produced by PHILIPS company and tumor simulator CT machine and positioning device of thermoplastic network automatic molding integration made by Oncologists themselves. First, did the routine T2WI/T1WI/SPIR/ TRA scan of the head and neck by the Supine position, Q-body coil for V/RFOV, 230/70 mm, Slices/thickness/gap, 24/5.0 mm/O mm; SPIR/COR, FOV/RFOV, 280/70 mm, Slices/thickness/gap, 20/5.0 mad0 mm; T2WI/SAG, FOV/RFOV, 280/70 mm, Slices/thickness/gap, 20/5.0 mm/0 mm. Then did T1WI/TRA enhanced scan, FOV/RFOV, 230/70 mm, Slices/thickness/gap, 70/2.5 mnd0MM, T2WISPIR/COR, FOV/RFOV, 280/80 mm , Slices/thickn tumor treatment room ess/gap, 20/5.0 mm/0MM; Homemade wood, fixing points of non-metallic positioning was set in the board; Transported the data into the PACS system, providing the tumor treatment room for plane selection after the end of the scan. Result： To the summarizing and analysis of lot of tumor localization such as neck, ENT and oral and maxillofacial cancer （ involving the nasal cavity, paranasal sinuses, lips and mouth, floor of the mouth, nasopharynx, oropharynx, hypopharynx, larynx, thyroid, salivary glands, the base of the skull, mandible ）, pure MR and CT simulator or naked eye view of positioning, had substantial difference among them, however, MR positioning was more comprehensive, accurate and secure than any other device positioning. Conclusion： MR and appropriate simulator of thermoplastic network integration improve the accuracy and scientific of radiotherapy positioning, reducing the normal tissue or organ damage, further enhance the quality of radiotherapy for head and neck cancer.

关 键 词：磁共振 融合定位 热塑网 头颈部肿瘤 

分 类 号：R739.91[医药卫生—肿瘤]