摘要
目的探讨双源CT能谱曲线在食管癌诊断及其病理分级中的应用价值。方法 60例经内镜或病理证实的食管癌患者行双源双能量模式扫描,两个球管管电压分别为:A球管100 k V,B球管140 k V,双能量扫描时两组球管同时工作。将扫描获得的两组数据上传至工作站进行相关后处理及分析:绘制食管癌病灶及正常食管管壁能谱曲线,比较食管癌病灶与正常食管壁、不同分化程度食管癌的能谱曲线特征及其斜率之间的差异与联系。食管癌病理分级依据病理结果。结果 1食管癌病灶能谱曲线走行位于正常食管管壁上方,并且斜率高于正常食管壁;2不同分化程度食管癌能谱曲线走行及趋势不同,分化程度越差,曲线走行越靠上,对各组能谱曲线斜率比较可得分化程度越差,能谱曲线斜率越大。结论双源双能量CT能谱曲线在食管癌诊断及病理分级中有着一定的临床应用价值。
Objective To explore the application value of spectrum curve dual- energy CT in the diagnosis of esophageal cancer and it＇s pathology grade. Methods 60 cases confirmed of esophageal carcinoma by endoscopic or pathology underwent dual source CT dual energy scan mode using two ball tube voltage respectively. Ball tube A was 100 k V,and ball tube B was 140 k V. The two ball tube worked at the same time when the dual energy scan was conducted. The data obtained from the dual energy scan was sent to the workstation for post- processing and analysis. The spectrum of esophageal carcinoma and normal esophageal wall was drawn,then the differences and relationship of the spectral curve and the slope between esophageal carcinoma and normal esophageal wall,different grades of esophageal cancer were analyzed and compared. The grade of the esophageal cancer was based on the pathology. Results 1The spectral curve of esophageal cancer was located above the normal esophageal wall both in arterial phase and venous phase,and the slope of the former was also higher than that of the latter,and the difference was statistically significant（ P〈0. 05）. 2The spectrum curve＇s direction and trend of different pathological grades of esophageal cancer were different. The poorer it differentiated,the closer to the top the spectrum curve located. After comparison of the slopes of these spectrum curve,the slope was higher in the poorly differentiated group. Conclusion The spectral curve of dual- source dual- energy CT has some clinical value in the diagnosis and it＇s pathology grade of esophageal cancer.
出处
《临床和实验医学杂志》
2016年第7期692-695,共4页
Journal of Clinical and Experimental Medicine
基金
连云港市科学技术局(编号:SH1006)
关键词
食管癌
双源双能量CT
能谱曲线
病理分级
Esophageal cancer
Dual-source dual-energy CT
Spectrum curve
Pathology grade
