CAJ | 학술논문

放射医疗技术中,放射治疗计划系统对CT、MRI等医学影像数据进行处理,以获得体表、器官等医生所关注区域的轮廓,这是进行最终放射剂量计算的重要基础.文章针对自动提取或手动勾画的感兴趣区域的轮廓,提出并实现了一种修改算法.该算法可对自动提取不准确和勾画不正确的区域轮廓线进行修改,以达到用户预期的效果.算法实现方便,运行交互性好,能满足放射治疗计划系统的要求.
방사의료기술중,방사치료계화계통대CT、MRI등의학영상수거진행처리,이획득체표、기관등의생소관주구역적륜곽,저시진행최종방사제량계산적중요기출.문장침대자동제취혹수동구화적감흥취구역적륜곽,제출병실현료일충수개산법.해산법가대자동제취불준학화구화불정학적구역륜곽선진행수개,이체도용호예기적효과.산법실현방편,운행교호성호,능만족방사치료계화계통적요구.
Section 1 of the full paper explains in some detail why an interactive modification algorithm is a necessity for accurate generation of contour used in RTPS (radiotherapy treatment planning system). Section 2 explains our modification algorithm for two different cases: (1) contour points are continuous; (2) contour points are discrete. Fig. 4 gives the flow chart of our algorithm for continuous contour points and Fig. 5 gives its flow chart for discrete contour points. Fig. 6 presents the modification results of one typical example obtained with our modification algorithm; they show preliminarily that the contour is accurately generated. Besides, its operation is simple and it is good in interaction.