摘要
目的探讨能谱CT虚拟平扫技术诊断肝脏占位性病变的价值。方法回顾性分析2018年1月—2019年5月就诊于我院的70例疑似肝脏占位性病变患者临床资料,均行常规CT平扫与能谱CT虚拟平扫技术检查。对比两种检查方式噪声、X线吸收剂量、伪影差异,并以临床或病理结果为金标准,分析常规平扫与能谱CT虚拟平扫技术诊断肝脏占位性病变的特异性、敏感性、准确性。结果能谱CT虚拟平扫技术噪声高于常规平扫,X线吸收剂量低于常规平扫,差异有统计学意义(P<0.05);两种检查方式伪影、敏感性和准确性相似,差异无统计学意义(P>0.05);常规平扫、能谱CT虚拟平扫技术诊断肝脏占位性病变的特异性均为100%。结论能谱CT虚拟平扫技术诊断肝脏占位性病变的伪影程度及诊断效能与常规平扫相似,虽噪声较高,但可减少对患者辐射剂量,可将其替代常规平扫,以提高扫描安全性。
Objective To explore the value of energy spectrum CT virtual plain scan in the diagnosis of liver space occupying lesions.Methods From January 2018 to may 2019,the clinical data of 70 patients with suspected hepatic space occupying lesions in our hospital were analyzed retrospectively.Routine CT plain scan and energy spectrum CT virtual plain scan were performed.The differences of noise,X-ray absorbed dose and artifact between the two methods were compared.The specificity,sensitivity and accuracy of conventional and energy spectrum CT virtual plain scan in the diagnosis of liver space occupying lesions were analyzed.Results The noise of energy spectrum CT virtual plain scan technology was higher than that of the conventional plain scan,and the X-ray absorbed dose was lower than that of the conventional plain scan,the difference was statistically significant(P<0.05);the artifacts,sensitivity and accuracy of the two inspection methods were similar,the differences was not statistically significant(P>0.05);the specificity of conventional plain scan and energy spectrum CT virtual plain scan in the diagnosis of hepatic spaceoccupying lesions was 100%.Conclusion The power spectrum CT virtual plain scan technology is similar to the conventional plain scan in the diagnosis of liver space occupying lesions in the degree of artifact and diagnostic efficiency.Although the noise is high,it can reduce the radiation dose to patients and replace the conventional plain scan,so as to improve the scanning safety.
作者
黄大平
HUANG Daping(Department of Radiology,Xiaogan Maternal and Child Health Hospital,Xiaogan Hubei 432000,China)
出处
《中国继续医学教育》
2021年第8期125-128,共4页
China Continuing Medical Education
关键词
肝脏占位性病变
能谱CT虚拟平扫技术
常规CT平扫
X线吸收剂量
造影
辐射剂量
hepatic space occupying lesions
energy spectrum CT virtual plain scan technology
conventional CT plain scan
X-ray absorbed dose
contrast
radiation dose
