椎间盘突出髓核游离的MRI诊断  

Diagnosis of MRI in the herniated free disc fragments

作　　者：杨明思[1] 陈羽[1] 陈仕勇[1] 郑彩霞[1] 

机构地区：[1]福建省福州市第一医院影像科,350009

出　　处：《中国医疗前沿》2011年第13期58-59,共2页China Healthcare Innovation

摘　　要：目的探讨椎间盘突出髓核游离的MRI表现。方法回顾分析7例髓核游离的MRI表现,并与手术结果及病理对照。结果病变椎间盘t2-tse序列信号减低或呈低信号,椎间隙不同程度狭窄,与病变椎间盘信号比较,游离髓核t1-tse7例、t2-tse及t2-tirm序列5例均为等信号,t2-tse和t2-tirm序列2例为稍高信号,信号不均匀;6例游离髓核远离病变椎间盘,1例位于病变椎间盘后缘;2例增强扫描游离髓核无强化,仅周边软组织轻度强化。手术所见游离髓核大小、位置与硬膜囊、神经根关系和MRI表现一致。病理主要为纤维软骨。结论游离髓核MRI的典型征象是各个序列其信号与病变椎间盘相同。游离髓核可远离病变椎间盘,形成椎管内占位,有时须与椎管内肿瘤鉴别。Objective To investigate the MRI appearances in herniated free disc fragments.Methods Appearances of the MRI of the free fragments were retrospectively analysed to compared with the results of surgical and pathology in 7 cases.Manner of scanning：Sag：t2-tse（TR 3500ms,TE 92ms）,t1-tse（TR 590ms,TE 11ms）,t2-tirm（TI 162ms,TR 3000ms,TE 30ms）,FOV 280×280cm;Tra：t2-tse（TR 3500ms、TE 107ms）,FOV 222×240cm;SL 4mm.Results The signal intensity of the herniated disces were down or low on t2-tse,the interval of spines was strictured at dissimilitude.The signal intensity of the free fragments were alike on series of all scanning in 5 cases and slight high intensity on t2-tse and t2-tirm in 2 cases to compared with herniated disc.The free fragments in 6 cases were faraway from herniated disc.In the 2 cases with enhanced,the fragments were no inhancement.The main characteristic of pathology were fibre in 2 cases that be remove by surgical.Conclusion The MRI characteristic signal intensity of the free disc fragments was alike with herniated disc on the series of all scanning and may be farway from it.The diagolosis of MRI for the fragments must be distinguish from the tumor in the tube of vertebra sometiomes.

关 键 词：椎间盘突出 髓核游离 磁共振成像 

分 类 号：R445.2[医药卫生—影像医学与核医学]