摘要
目的:研究CT灌注成像在正常肝组织和微小转移性肝癌的应用价值。方法:25例肝转移癌患者选取48个微小转移灶行多层螺旋CT灌注扫描,通过兴趣区(ROI)的时间密度曲线,应用去卷积法获得血流量(BF)、血容量(BV)、平均通过时间(MTT)、毛细血管表面通透性(PS)和肝动脉灌注指数(HAI)等参数值。结果:转移癌组与正常肝组比较,BF、MTT、HAI、BV和PS两组的平均值有显著性差异。结论:CT灌注技术对于诊断微小转移癌能够提供更多的信息。
Objective: To evaluate CT perfusion imaging in small metastatic liver cancer, Methods: Twelve cases of normal liver and 25 patients with 48 small metastases underwent CT perfusion imaging.The ROI mean vales of blood flow(BW) ,blood volume (BV) ,mean transit time (MTT) ,permeability surface area product (PS),hepatic arterial perfusion(HA1). Results:There was statistical significance in rrean values of BF, HAI, MTT, HAP, BV and PS between small metastases and normal liver( P 〈 0.05). Conclusion: CT perfusion provides more information of mierometastases for clinical diagnosis.
出处
《中国民康医学》
2008年第6期496-497,共2页
Medical Journal of Chinese People’s Health
关键词
肝脏肿瘤
转移
CT灌注成像
Liver neoplasms
Metastasis
CT perfusion imaging