双能量CT双期扫描多种衍生序列在胰腺癌诊断中的应用  

The application of dual energy CT biphasic scanning sequence in the diagnosis of pancreatic cancer

作　　者：刘海涛[1] 薛超[1] 陈瑞[1] 赵青[1] Liu Haitao;Xue Chao;Chen Rui;Zhao Qing(Department of Radiology,South District,Guang′anmen Hospital,China Academy of Chinese Medical Sciences,Beijing 100053,China)

机构地区：[1]中国中医科学院广安门医院南区放射科,北京102618

出　　处：《中国临床保健杂志》2018年第3期394-397,共4页Chinese Journal of Clinical Healthcare

基　　金：国家重点基础研究发展计划资助项目(2011CB505202)

摘　　要：目的探讨胰腺癌诊断中双能量CT双期扫描多种衍生序列的应用效果。方法选取46例胰腺癌患者,对其双能量CT行双期扫描与多种衍生序列图像处理过程进行回顾,依据病理学诊断结果,分析不同后处理图像对胰腺癌的诊断情况。结果双能量CT双期扫描结合多种衍生序列对胰腺癌的准确率为97.83%,与病理学诊断的100.00%对比,差异无统计学意义(P>0.05),且双能量CT扫描对胰腺癌诊断的准确率高于CT平扫的82.61%,差异有统计学意义(P<0.05);动脉期碘图、非线性融合、线性融合的绝对强化值(AEV)、胰腺-肿瘤相对强化值(REV)、对比噪声比(CNR)差异有统计学意义,实质期REV、强化比值(ER)、CNR差异有统计学意义(均P<0.05)。结论双能量CT双期扫描多种衍生序列联合应用能够提升胰腺癌诊断准确率。Objective To explore the application of dual energy CT biphasic scanning sequences in the diagnosis of pancreatic cancer. Methods Forty-six cases with pancreatic cancer were randomly selected from our hospital between August 2016 to October 2017.The dual energy CT scan and multiple dual phase of patients were derived sequence image processing according to the pathological diagnosis. Results The accurate rate of dual phase dual energy CT scan combined with the sequence derived was 97.83% in the diagnosis of pancreatic cancer,and had no significant difference compared with pathological diagnosis（ P 〉0.05）.The accurate rate of dual energy CT scan accuracy in the diagnosis of pancreatic cancer was higher than that of plain CT （ P〈 0.05）.Two method had significant difference （ P 〈0.05） in the arterial phase diagram,iodine nonlinear fusion,linear fusion （AEV）,the absolute enhancement value of pancreatic-the relative tumor enhancement value （REV）,contrast to noise ratio （CNR）,REV and parenchymal enhancement ratio （ER）. Conclusion The combined application of dual-energy CT dual-phase scanning sequence can improve the diagnostic accuracy of pancreatic cancer.

关 键 词：胰腺肿瘤 吸收测定法 光子 

分 类 号：R735.9[医药卫生—肿瘤]