MSCT灌注成像在肺结节(肿块)鉴别诊断中的价值
肺部疾病；硬币性病变；体层摄影术,X线计算机,,肺部疾病；硬币性病变；体层摄影术，X线计算机,1资料与方法,2结果,3讨论,【参考文献】
【摘要】 目的 探讨MSCT灌注成像对良、恶性肺结节(肿块)的鉴别诊断价值。方法 回顾性分析32例经临床确诊的肺结节(肿块)的各项CT灌注成像参数[血流量(BF)、血容量(BV)、平均通过时间(MTT)、毛细血管表面通透性(PS)]及各参数值的临床意义。结果 (1)轻中度强化组：恶性肺结节(肿块)的BF、BV、PS值均明显高于良性肺结节(肿块)，差异有非常显著性(P<0.01)；恶性肺结节(肿块)的MTT值高于良性肺结节(肿块)，差异有显著性(P<0.05)。(2)明显强化组：恶性肺结节(肿块)BV、PS值高于良性肺结节(肿块)，差异有显著性(P<0.05)，BF、MTT值差异无显著性(P>0.05)。结论 MSCT灌注成像有助于良、恶性肺结节(肿块)的鉴别诊断。【关键词】 肺部疾病；硬币性病变；体层摄影术，X线计算机
Value of multi-slice spiral CT perfusion imaging for differential diagnosis of pulmonary nodules(masses)
ZHANG Jun,ZOU Song-qing,SHANG-GUAN Wen-bo.Department of Radiology,The 5th Peoples Hospital,Foshan 528211,China
【Abstract】 Objective To discuss the value of multi-slice CT (MSCT) perfusion imaging for differential diagnosis of pulmonary nodules (masses).Methods CT perfusion imaging parameters of 32 cases of pulmonary nodules(masses) proved by pathology or clinic were reviewed including blood flow (BF)、blood volume(BV)、mean transit time(MTT)and permeability surface(PS).Results (1)The mild-moderate enhancement group:the values of BF,BV,MTT and PS of malignant nodules (masses) were significant higher than benign nodules (masses).There were statistic significant difference in BF,BV,PS(P<0.01),and MTT(P<0.05) between malignant and benign nodules (masses).(2)The strong enhancement group:the values of BV and PS of malignant nodules (masses) were significantly higher than benign nodules (masses)(P<0.05).But there were not significant difference in MTT between malignant and benign nodules (masses)(P>0.05).Conclusion MSCT perfusion imaging is helpful for differential diagnosis of pulmonary nodules (masses). ......
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