能谱CT在食管癌诊断和疗效评价中的研究进展

Research Progress of Energy Spectrum CT in Diagnosis and Efficacy Evaluation of Esophageal Cancer

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.