RevolutionCT在中央型肺癌伴肺不张瘤-肺界面鉴别中的价值  

The value of Revolution CT in identifying the tumor-lung interface between central lung cancer and accompanying atelectasis

作　　者：李西林 陈静 耿立辉 李琦 李健 陈阳 刘景旺 LI Xilin;CHEN Jing;GENG Lihui;LI Qi;LI Jian;CHEN Yang;LIU Jingwang(Department of Radiology,Kailuan General Hospital Affiliated to North China University of Science and Technology,Tangshan,Hebei Province 063000,China)

机构地区：[1]华北理工大学附属开滦总医院影像科,河北唐山063000

出　　处：《实用放射学杂志》2024年第5期713-716,共4页Journal of Practical Radiology

摘　　要：目的探讨RevolutionCT能谱多参数成像在中央型肺癌合并肺不张瘤-肺界面鉴别中的应用价值。方法收集73例经病理证实确诊为中央型肺癌合并肺不张患者的能谱CT影像资料,比较动脉期、静脉期、延迟期混合能量图、最佳单能量图和最佳单能量-碘基伪彩融合图、有效原子序数(Eff-Z)图中瘤-肺界面的主观评分,并比较增强扫描静脉期肿瘤组织与肺不张组织的CT值、碘浓度(IC)值、Eff-Z和能谱曲线斜率(λHU)。结果(1)3期增强扫描的瘤-肺界面主观评分静脉期最高。(2)增强扫描各期CT扫描瘤-肺界面主观评分中混合能量图、最佳单能量图、最佳单能量-碘基伪彩融合图和Eff-Z之间存在统计学差异,最佳单能量碘基伪彩融合图最高,最佳单能量图次之。(3)静脉期肿瘤组织与肺不张组织CT值、IC值、Eff-Z和λHU之间存在统计学差异,肿瘤组织与肺不张组织的IC值差别最大。结论RevolutionCT可以通过能谱多参数成像识别中央型肺癌与肺不张组织的瘤-肺界面,为中央型肺癌合并肺不张诊断及疗效评价提供有益的参考依据。Objective To study the application value of multi-parameter imaging of Revolution energy spectrum CT in identifying the tumor-lung interface between central lung cancer and accompanying atelectasis.Methods The spectral CT imaging data of 73 patients with central lung cancer and accompanying atelectasis confirmed by pathology were collected.The polychromatic image,the best monochromatic image,the best monochromatic image combined with iodine concentration map and the effective atomic number(Eff-z)of the tumor-lung interface in the arterial,venous and delayed phases were compared,and the CT value,iodine concentration(IC)value,Eff-Z and the slope of energy spectrum curve(^HU)of tumors and atelectasis in the venous phase were also compared.Results(1)On tri-phase CT,the subjective score of the tumor-lung interface in the venous phase was the highest.(2)There were differences among the subjective scores of tumor-lung interface on polychromatic image,best monochromatic image,best monochromatic image combined with iodine concentration map and Eff-Z on tri-phasic enhanced CT.The subjective score of the best monochromatic image combined with iodine concentration map was the highest,followed by the best monochromatic image.(3)There were significant differences in CT values,IC values,Eff-Z and>HU between tumors and atelectasis in venous phase,with the highest difference of IC value.Conclusion Revolution energy spectrum CT can identify the tumor-lung interface between central lung cancer and accompanying atelectasis through multi-parameter imaging,which may provide helpful information for the diagnosis and therapeutic evaluation of the disease.

关 键 词：肺癌 肺不张 计算机体层成像 

分 类 号：R734.2[医药卫生—肿瘤] R563.4[医药卫生—临床医学] R814.42