CAJ | 학술논문

目的：探讨磁共振磁敏感加权成像（ susceptibility weighted imaging，SWI）序列对脊髓损伤的诊断价值及临床意义。方法选择2012年1月至2013年12月温州医科大学附属第三人民医院收治的外伤所致脊髓损伤出血患者52例，行常规MRI序列和SWI扫描，分析并对比常规序列和SWI对于出血的显示情况，对患者进行随访。结果 SWI扫描对水肿、挫伤、出血等显示率明显高于常规组，差异有统计学意义（χ2＝4.566、4.872、4.616，P＜0.05）；SWI扫描显影时间明显较常规组短，差异有统计学意义（χ2＝4.668、4.265、6.934、4.823，P＜0.05）；脊髓损伤类型以水肿为最多，占38.5％，明显高于出血、坏死和增粗。结论 SWI序列表现为不同程度和范围的病灶周围片状、线状、环状低信号环绕点片状中央高信号，而T1WI、T2WI则表现多样；SWI显示脊髓损伤的出血更敏感、更清晰，明显优于常规MRI序列，是脊髓损伤的重要检查手段。
목적：탐토자공진자민감가권성상（ susceptibility weighted imaging，SWI）서렬대척수손상적진단개치급림상의의。방법선택2012년1월지2013년12월온주의과대학부속제삼인민의원수치적외상소치척수손상출혈환자52례，행상규MRI서렬화SWI소묘，분석병대비상규서렬화SWI대우출혈적현시정황，대환자진행수방。결과 SWI소묘대수종、좌상、출혈등현시솔명현고우상규조，차이유통계학의의（χ2＝4.566、4.872、4.616，P＜0.05）；SWI소묘현영시간명현교상규조단，차이유통계학의의（χ2＝4.668、4.265、6.934、4.823，P＜0.05）；척수손상류형이수종위최다，점38.5％，명현고우출혈、배사화증조。결론 SWI서렬표현위불동정도화범위적병조주위편상、선상、배상저신호배요점편상중앙고신호，이T1WI、T2WI칙표현다양；SWI현시척수손상적출혈경민감、경청석，명현우우상규MRI서렬，시척수손상적중요검사수단。
Objective To investigate MRI susceptibility weighted imaging( SWI) sequence on diagnostic value and clinical significance of spinal cord injury.Methods 52 cases admitted from Jan.2012 to Dec.2013 were collected.They underwent routine MRI sequence and SWI scanning.The conventional sequences and SWI for displaying hemorrhage were analyzed and compared.The patients were followed.Results The display rate of SWI scan for edema, contusion, and bleeding was significantly higher than that of the conventional group.The difference had statistical significance(P<0.05).SWI scanning imaging time was shorter than that of the conven-tional group.The difference had statistical significance(P<0.05).The type of spinal cord injury was mostly e-dema, accounting for 38.5%, significantly more than hemorrhage, necrosis and thickening.Conclusion SWI is more sensitive and clear in displaying bleeding caused by spinal cord injury compared to the conventional MRI se-quence, which is an important inspection method in spinal cord injury.