CAJ | 학술논문

目的探讨磁敏感加权成像(susceptibility weighted imaging,SWI)在出血性弥漫性轴索损伤(diffuse axonal injury,DAI)中的诊断价值. 方法回顾性分析20例外伤后3d内行MRI检查的DAI患者的资料,扫描序列包括T1WI、T2WI、液体衰减反转恢复(fluid attenuated inversion recovery,FLAIR)序列和扩散加权成像(diffusion weighted imaging,DWI)及SWI扫描.GCS≤8分15例,9 ～12分3例,13 ～ 15分2例；统计病灶的发生部位、数量,测量各扫描序列发现的病灶面积,应用X2检验比较各序列病灶检出率的差异,并对患者DAI出血灶面积与GCS评分作相关分析. 结果 DAI出血灶在脑表浅部位较后颅窝和脑深部多,SWI序列对出血性病灶的检出率最高,与其他序列的差异有统计学意义(P＜0.05),出血灶的面积与GCS评分呈负相关(r=-0.921,P＜0.01). 结论 SWI能非常敏感地检出外伤后急性期DAI患者的脑内出血灶.
목적 탐토자민감가권성상(susceptibility weighted imaging,SWI)재출혈성미만성축색손상(diffuse axonal injury,DAI)중적진단개치. 방법 회고성분석20예외상후3d내행MRI검사적DAI환자적자료,소묘서렬포괄T1WI、T2WI、액체쇠감반전회복(fluid attenuated inversion recovery,FLAIR)서렬화확산가권성상(diffusion weighted imaging,DWI)급SWI소묘.GCS≤8분15례,9 ～12분3례,13 ～ 15분2례；통계병조적발생부위、수량,측량각소묘서렬발현적병조면적,응용X2검험비교각서렬병조검출솔적차이,병대환자DAI출혈조면적여GCS평분작상관분석. 결과 DAI출혈조재뇌표천부위교후로와화뇌심부다,SWI서렬대출혈성병조적검출솔최고,여기타서렬적차이유통계학의의(P＜0.05),출혈조적면적여GCS평분정부상관(r=-0.921,P＜0.01). 결론 SWI능비상민감지검출외상후급성기DAI환자적뇌내출혈조.
Objective To investigate the value of susceptibility weighted imaging (SWI) in the diagnosis of hemorrhagic diffuse axonal injury (DAI). Methods A retrospective study was conducted on 20 patients with DAI who received MRI examination at day 3 post-injury.MRI sequences included T1WI,T2WI,fluid attenuated inversion recovery ( FLAIR),diffusion weighted imaging (DWI) and SWI.There were 15 patients with the Glasgow Coma Scale (GCS) score≤8,three with GCS score of 9-12 and two with GCS of 13-15.The location and quantity of hemorrhage focus were counted.The area of hemorrhage focus was measured on each MR sequence.Differences of detection rate of hemorrhage focus on each sequence were compared by using X2 test.The correlation between DAI related bleeding area and GCS score was analyzed. Results DAI related hemorrhage focus showed a larger number in superficial cerebrum than that in posterior cranial fossa and in deep cerebrum.The detection rate of hemorrhage focus on SWI was the highest,as compared with other sequences ( P ＜ 0.05 ).Bleeding area and GCS score showed a negative correlation (r =-0.921,P ＜ 0.01 ). Conclusion SWI is very sensitive in detection of the intracerebral hemorrhage focus in the acute period of traumatic DAI.