磁共振弥散加权成像对髋关节早期活动病灶的临床价值  

The Clinical Value of MR Diffuse Weighing Imaging in Hip Joint's Early Ambulant Focus

作　　者：杨超[1] 游彦莉 

机构地区：[1]四川省第四人民医院放射科,四川成都610016 [2]成都市第七人民医院重症医学科,四川成都610021

出　　处：《四川医学》2016年第1期104-106,共3页Sichuan Medical Journal

摘　　要：目的探讨磁共振弥散加权成像对髋关节早期活动病灶的临床诊断价值。方法对33例临床可疑髋关节具有早期病变的患者,分别使用T_1W,T_2W和b值为600s/mm^2弥散加权成像检查再分别比较T_1W,T_2W和b值为600s/mm^2弥散加权成像三者之间的弥散加权图像特点。结果 T_1W能显示髋关节具有早期病变的患者与病理符合例数为20例,与病理符合率达60.61%;T_2W能显示髋关节具有早期病变的患者与病理符合例数为23例,与病理符合率达75.76%;磁共振弥散加权b值为600s/mm^2(DWI600)能显示髋关节早期活动病灶与病理符合例数为30例,与病理符合率达90.91%。T_1W与DWI600比较差异有统计学意义(X^2=8.250,P<0.05);T_2W与DWI600比较差异有统计学意义(X^2=4.694,P<0.05);T_1W与T_2W比较差异无统计学意义(X^2=0.601,P>0.05)。结论磁共振弥散加权成像,尤其是DWI600,可以用作MR对髋关节早期活动病灶检查的重要补充序列,并有重要诊断价值。Objective To evaluate the clinical value of magnetic resonance , MR diffuse weighing imaging in hip joint＇s early ambulant focus. Methods T1W,T2W and MR diffuse weighing imaging with b value for 600s/mm2were used to examine 33 cases who were suspected to have early lesions in hip joint clinically, and the characters of the three diffuse weighing images were compared respectively. Results 20 cases＇ early lesions in hip joint had been detected by T~ W conformed to pathology with coincidence rate as 60. 61%. 23 cases＇ early lesions in hip joint had been detected by T2W conformed to pathology with coinci- dence rate as 75.76%. 30 cases＇ early lesions in hip joint had been detected by MR diffuse weighing imaging with b value for 600s/mm2（DWI600） conformed to pathology with coincidence rate as 90. 91%. There was statistically significant between T1W and DWI600 （ X2= 8. 250,P 〈 0. 05 ）. There was statistically significant between T2 W and DWI600 （ X2 = 4. 694, P 〈 0. 05 ）. There was no statistically significant difference between T1 W and T2W. Conclusion MR diffuse weighing imaging, especially DWI600 can be used as an important complementary sequence of MR for the examination of early ambulant focus in hip joint, and it has im- portant diagnostic value.

关 键 词：磁共振成像 弥散加权成像 髋关节早期活动病灶 

分 类 号：R445.2[医药卫生—影像医学与核医学] R684[医药卫生—诊断学]