CAJ | 학술논문

目的：探讨大孔径16排螺旋CT在放疗模拟定位中的应用。方法：应用大孔径16排螺旋CT进行乳腺癌保乳术后根治性放疗乳腺切线野的CT模拟定位，并对CT模拟定位技术与传统X射线模拟定位技术进行比较，同时与单排螺旋CT的图像进行比较。结果：大孔径16排螺旋CT在放疗模拟定位中的应用避免了因患者体位受限而造成的误差；大孔径16排螺旋CT模拟机的定位验证误差均优于传统X射线模拟机；其图像质量优于单排螺旋CT。结论：大孔径16排螺旋CT模拟定位机的应用，使得放疗定位更加精确，计划和治疗更加准确。
목적：탐토대공경16배라선CT재방료모의정위중적응용。방법：응용대공경16배라선CT진행유선암보유술후근치성방료유선절선야적CT모의정위，병대CT모의정위기술여전통X사선모의정위기술진행비교，동시여단배라선CT적도상진행비교。결과：대공경16배라선CT재방료모의정위중적응용피면료인환자체위수한이조성적오차；대공경16배라선CT모의궤적정위험증오차균우우전통X사선모의궤；기도상질량우우단배라선CT。결론：대공경16배라선CT모의정위궤적응용，사득방료정위경가정학，계화화치료경가준학。
Objective:To discuss application of large aperture 16 row spiral CT in radiotherapy simulation positioning. Methods: To apply CT simulation positioning with large aperture 16 row spiral CT for the breast tangential field by early breast cancer after breast conserving surgery and radical radiotherapy. Compare CT-simulation and X-ray conventional positioning technique and Compare large aperture 16 row spiral CT and single row spiral CT image. Results: The application of large aperture 16 row spiral CT avoided the error because of body limited. Large aperture 16 row spiral CT simulation position validation error is superior to X-ray positioning. Its image quality is better than that of single row spiral CT. Conclusion:The application of large aperture 16 row spiral CT make simulation positioning more accurate, planned and treatment more accurate, it can provide guarantee of accurate simulation positioning for accurate plan and treatment.