双能量CT对膝关节韧带的初步定量研究  

Initial quantitative study of dual-energy CT on the knee ligaments

作　　者：彭飞[1] 赵衡[1] 任秋萍[1] 王芳[1] 雷昊 李辉[1] 唐德秋[1] 刘进才[1] PENG Fei;ZHAO Heng;REN Qiuping;WANG Fang;LEI Hao;LI Hui;TANG Deqiu;LIU Jincai(Department of Radiology,the First Affiliated Hospital of University of South China,Hengyang,Hunan 421001,China)

机构地区：[1]南华大学附属第一医院放射科

出　　处：《现代医药卫生》2019年第21期3262-3264,共3页Journal of Modern Medicine & Health

基　　金：湖南省科技创新计划项目(2017SK50203)

摘　　要：目的研究双能量CT(DECT)在膝关节韧带中的临床应用。方法2018年2月至2019年3月该院10例患者(20个膝关节)行DECT扫描,通过多平面成像(MPR)和容积再现技术(VRT)对所有病例的膝关节二维和三维图像进行重建,依据韧带的边缘及附着点,由2位放射科医生按照膝关节韧带等级评分独立进行评估。结果髌韧带、后交叉韧带、前交叉韧带、外侧副韧带能够被清晰地显示,内侧副韧带显示欠佳,横向韧带(如髌骨内侧、外侧支持带)与后韧带(如腘斜韧带)不能显示。结论DECT可较清晰地呈现维持膝关节稳定的主要韧带,是一项有价值的呈现膝关节主要韧带的新方法。Objective To study the clinical application of dual-energy CT(DECT)on the knee ligaments.Methods DECT scan was performed in 10 patients(20 knee joints)from February 2018 to March 2019 in the hospital,two-and three-dimensional images were used for display in all knees by means of multi-planar reformation(MPR)and volume rendering technique(VRT).According to the margin and attachment points of the knee ligament,2 radiologists independently evaluated the knee ligament grade.Results The patellar ligament,posterior cruciate ligament,anterior cruciate ligament and fibular collateral ligament were clearly displayed.The tibial collateral ligament was not satisfactorily displayed.The transversal ligaments(such as lateral patellar retinaculum and medial patellar retinaculum)and the posterior ligament(such as oblique popliteal ligament)could not be displayed.Conclusion DECT is a new and valuable tool which can quantitatively display the main ligaments of the knee.

关 键 词：双能量CT 膝关节 韧带 容积再现 多平面成像 

分 类 号：R183.6[医药卫生—流行病学]