磁敏感加权成像联合磁化传递对比技术对出血性脑转移瘤的诊断价值  

Diagnostic Value of Susceptibility Weighted Imaging Combined with Magnetic Transfer Contrast in Hemorrhagic Brain Metastases

作　　者：叶华景 胡海菁 谭树生 梁德志 董志兴 YE Hua-jing;HU Hai-jing;TAN Shu-sheng;LIANG De-zhi;DONG Zhi-xing(Department of Radiology,The Sixth Affiliated Hospital,South China University of Technology(Foshan Nan-hai People's Hospital),Foshan 521000,Guangdong Province,China)

机构地区：[1]华南理工大学附属第六医院(佛山市南海区人民医院)放射科,广东佛山528200

出　　处：《中国CT和MRI杂志》2025年第3期12-14,共3页Chinese Journal of CT and MRI

基　　金：佛山市卫生健康局医学科研项目(20220063)。

摘　　要：目的探讨磁敏感加权成像联合磁化传递对比技术对出血性脑转移瘤的诊断价值。方法对48例患脑转移瘤的病人行常规MRI平扫后,再行SWI、CE-T1WI及增强MTC检查,并分别记录三组不同序列发现转移瘤的部位及数目,6个月内随诊复查证实。结果共检出156个脑转移瘤病灶,其中SWI检出119个,检出率为76%,CE-T1WI检出134个,检出率86%,MTC检出148个,检出率95%,三种不同序列对脑转移瘤检出率有统计学差异(P<0.001)。各序列两两之间进行相互比较,均有统计学差异。将SWI与MTC检出的转移灶联合统计,共发现153个病灶,检出率98%,与CE-T1WI比较,有统计学差异(P<0.001)。结论在脑转移瘤检出率方面,CE-T1WI强于SWI,但不如增强MTC。SWI对脑转移瘤内部出血的显示有优势,MTC对微小脑转移瘤的敏感性更高,SWI联合MTC使用能提高出血性脑转移瘤的检出率,可作为MRI检查常规序列的有效补充。Objective To explore the diagnostic value of magnetic susceptibility weighted(SWI)imaging combined with magnetic transfer technique(MTC)of hemorrhagic brain metastases.Methods 48 patients with brain metastases underwent conventional MRI scan,SWI,CE-T1WI and enhanced MTC,and the site and number of metastases found in three different sequences were recorded,which was confirmed by follow-up review within 6 months.Results Total of 156 brain metastases were detected,which 119 were detected by SWI,with the detection rate of 76%,134 were detected by CE-T1WI,86%,148 were detected by MTC,and the detection rate of 95%.The detection rate of three different sequences was significantly different(P<0.001).The pairs of sequences were compared with each other.Using the combined statistics of metastases detected by SWI and MTC,153 lesions were found,and with the detection rate of 98%,as compared with CE-T1WI(P<0.001).Conclusion In terms of brain metastases detection rate,CE-T1WI was better than SWI,but inferior to enhanced MTC.SWI has an advantage for the display of intratumoral hemorrhage in brain metastases,and MTC has a higher sensitivity to small brain metastases,SWI combined with MTC can improve the detection rate of hemorrhagic brain metastases,and can be used as an effective supplement to the routine sequence of MRI examination.

关 键 词：脑转移瘤 瘤内出血 磁共振成像 磁化传递对比 磁敏感加权成像 

分 类 号：R445.2[医药卫生—影像医学与核医学]