磁敏感加权成像技术在早产儿脑损伤诊断中的价值  

The value of Magnetic sensitive weighted imaging in the diagnosis of premature infant brain injury

作　　者：赵晓君[1] 周忠洁[1] 张弦[1] 刘锟[1] 严志汉[1] 

机构地区：[1]温州医科大学附属第二医院放射科,浙江温州325000

出　　处：《医学影像学杂志》2016年第12期2186-2188,共3页Journal of Medical Imaging

基　　金：浙江省温州市科技局社会发展科学研究项目(Y20130230)

摘　　要：目的对比和探讨磁敏感加权成像技术(SWI)在早产儿脑损伤诊断中的价值。方法对50例临床拟诊的早产儿脑损伤患者(出生后1周内),行T_1WI、T_2WI、FLAIR、DWI轴位和SWI轴位扫描,评估记录不同序列上的低信号部位、数目和面积。结果 50例早产儿中,T_1WI、T_2WI、FLAIR、DWI、SWI发现的病灶数量分别为108、82、123、135、204个,SWI较常规序列更敏感地显示出血灶,差异具有统计学意义。在相同部位显示病变大小范围以SWI最好(0.72±0.58),较T_1WI、T_2WI(0.50±0.48)清晰明显,差异具有统计学意义。结论 SWI较其它序列更容易发现微出血灶,SWI还能探测早产儿脑深部髓静脉管情况,具有其他检查方法不可比拟的优势。Objective To compane and explore the magnetic sensitive weighted imaging （SWI） in the diagnosis of premature infant brain damage value. Methods 50 cases of clinical examination of premature infant brain injury patients （1 w after birth）, line T1WI, T2WI, FLAIR, DWI and SWI axis can scan, assessment record low signal on the sequences of different parts and the number and area. Results In 50 cases of premature infants, T1wI, T2WI, FLAIR, DWI, SWI can find the number of lesions, respectively 108, 82, 123, 82,204, SWI was more sensitive than conventional sequence to display hemorrhage stove, difference was statistically significant. In the same place for displaying the lesion size range, SWI was best （0.72 ± 0.58）, compared with T1 WI, T2 WI, （0.50 - 0.48） was clearly apparent, difference was statistically significant. Conclusion SWI sequence is easier to find lesions than others micro hemorrhage stove, SWI can also detect premature deep brain marrow venous duct, incomparable advantages with other methods.

关 键 词：早产儿 微小出血灶 磁共振成像 

分 类 号：R722.15[医药卫生—儿科] R445.2[医药卫生—临床医学]