摘要
能谱CT利用物质在不同X线能量下吸收不同的原理,提供比常规CT更多的影像信息,通过运算不同能量采集数据,获得能谱曲线、直方图、散点图、基物质图像等资料,对组织进行定性和定量分析。食管癌是常见的消化道肿瘤,能谱CT在食管癌肿瘤分期、良恶性鉴别、判断淋巴结转移,疗效评价等方面提供了多参数数据,一定程度上弥补了常规CT量化评估的不足,为制订食管癌个体化治疗方案提供了重要参考信息,但能谱CT在食管癌临床应用中仍需进一步拓展和深化。
Energy spectrum CT,in use of principles of different absorptions under different X-ray energies,can provide more image information than conventional CT.It conducts qualitative and quantitative analysis of tissues by computing data collected from different energy sources to obtain energy spectrum curves,histograms,scatter plots,and basic material images.Esophageal cancer is a common digestive tract tumor.Energy spectrum CT provides multi-parameter information in the staging of esophageal cancer,differentiation of benign and malignant nature,lymph node metastasis judgement,and evaluation of curative effect,which to some extent,makes up for the deficiency of regular CT quantitative evaluation,providing important reference for the development of individualized treatment plans for esophageal cancer.However,the clinical application of energy spectrum CT in esophageal cancer still needs further expanding and deepening.
作者
郑星星
冯峰
ZHENG Xingxing;FENG Feng(Department of Radiology,Nantong Tumor Hospital,Nantong 226361,China)
出处
《医学综述》
2019年第3期571-575,共5页
Medical Recapitulate
基金
江苏省科技项目(BK20161291)
南通市卫生局科技项目(WQ2014047)
南通市科技局科技项目(MS22015107)
关键词
食管癌
能谱CT
能谱参数
碘浓度
Esophageal cancer
Energy spectrum CT
Energy spectrum parameter
Iodine concentration
