摘要
目的探讨双源CT双能量技术在孤立性肺结节(SPN)研究中的应用价值。方法随机选取我院收治的SPN患者49例,均接受常规CT平扫、双能CT增强扫描及病理检查。比较真实平扫和虚拟平扫的SPN图像CT值、噪声、信噪比、直径、增强强化值、碘图CT值;比较真实平扫、虚拟平扫、碘图CT值的诊断效能。结果真实平扫和虚拟平扫的增强强化值低于碘图CT值,虚拟平扫的增强强化值大于真实扫描(P<0.05)。虚拟平扫的特异度、阳性预测值大于真实平扫、碘图CT值,碘图CT值的灵敏度、准确度、阴性预测值大于真实平扫、虚拟平扫。结论SPN研究中,双源CT双能量技术的临床应用价值高,灵敏度、准确度、阴性预测值均较高。
Objective To explore the application value of dual energy technique of dual source CT in the study of solitary pulmonary nodules(SPN).Methods A total of 49 SPN patients admitted in our hospital were randomly selected.All patients underwent conventional CT plain scan,dual-energy CT enhanced scan and pathological examination.The CT value,noise,signal-to-noise ratio,diameter,enhancement value,CT value of iodine distribution diagram of SPN images of real plain scan and virtual plain scan were compared;the diagnostic efficiency of real plain scan,virtual plain scan and iodine image CT value were compared.Results The enhancement values of real plain scan and virtual plain scan were lower than CT value of iodine distribution diagram,the enhancement value of virtual plain scan was greater than that of real scan(P<0.05).The specificity and positive predictive value of virtual plain scan were bigger than the real plain scan and CT value of iodine distribution diagram,the sensitivity,accuracy and negative predictive value of CT value of iodine distribution diagram were bigger than the real plain scan and virtual plain scan.Conclusion The dual energy technique of dual source CT in the study of SPN has high clinical application value,with higher sensitivity,accuracy and negative predictive value.
作者
赵雪珂
赖婷妹
徐广超
王卓
ZHAO Xue-ke;LAI Ting-mei;XU Guang-chao;WANG Zhuo(Harbin First Hospital Affiliated of Harbin Institute of Technology,Harbin 150070,China)
出处
《临床医学研究与实践》
2020年第21期118-119,共2页
Clinical Research and Practice
关键词
双源CT双能量技术
孤立性肺结节
诊断效能
dual energy technique of dual source CT
solitary pulmonary nodule
diagnostic efficiency
