【摘要】 在放射学领域引入了灌注分析方法作为辅助诊断的有效手段。介绍了计算机辅助诊断的基本原理、血流计算的灌注分析方法,并设计了一种针对结肠病变的灌注影像分析系统。实验表明使用动态CT灌注成像方法及后处理算法,可及时检测到一些常规CT检查所不能够检测到的结肠病变,对于一些病变的及时诊断、及时治疗具有重要意义。更多还原

【Abstract】 This paper introduced the fundamental of computer aided diagnosis,and then proposed an analyse method using perfusion CT,which was based on a model for capillary exchange.Designed an system for rectal cancer with dynamic multisection CT.The results acquired from the experiments show that the algorithm can check and measure some colonic pathological changes which may not be detected in normal analyze.It’s important for initial observation of colonic cancer and treatment response.It is significant for in time diagnosis and treatment of some pathological changes.更多还原