腰骶神经根变异的三维MR-PROSET影像观察  

Observation of lumbosacral nerve root anomalies on three-dimensional MR-PROSET imaging

作　　者：冉鹏程[1] 柴晓明[2] 李松柏[3] 李琳 刘波[1] 刘玉品[1] 

机构地区：[1]广州中医药大学第二临床医学院放射科,广州510120 [2]福建医科大学附属厦门第一医院放射科,福建厦门361003 [3]中国医科大学第一附属医院放射科,沈阳110001 [4]飞利浦医疗大中华区MR市场部,上海200070

出　　处：《中国临床解剖学杂志》2010年第2期166-169,共4页Chinese Journal of Clinical Anatomy

摘　　要：目的探讨三维MR-PROSET序列对腰骶神经根变异的显示能力,观察腰骶神经根变异的三维影像学解剖。方法采用常规MRI序列和三维PROSET序列扫描108例腰腿痛患者,所得PROSET序列原始图像行三维MIP后处理,结合原始图像及MIP图像观察腰骶神经根的解剖形态。结果在获得优良图像的105例病例中发现14例腰骶神经根变异,发现率为13.33%。14例腰骶神经根变异中,Ⅱ型变异为10例(71.43%);其中Ⅱ-1型4例(28.57%),Ⅱ-2、Ⅱ-3、Ⅱ-4型各2例(各14.29%);Ⅲ型及Ⅵ型变异各2例(各14.29%)。结论三维MR-PROSET序列对腰骶神经根变异的显示具有独特的优势,有助于腰骶神经根变异的诊断。Objective Toevaluatetheabilityofthree-dimensional（3D）coronalMR-PROSET sequence in demonstrating lumbosacral nerve root anomalies （LSNRA） and investigate the imaging anatomy of LSNRA. Methods Conventional MRI sequence and 3D PROSET sequence were performed in lumbosacral nerve roots of 108 cases with low back pain respectively,and 3D maximum intensity projection （MIP） reconstruction was used in PROSET sequence. The lumbosacral nerve roots were observed in the raw images and 3D MIP images. Results In the 105 cases with high-quality images,14 cases of LSNRA were found with 3D PROSET sequence,the detection rate was 13.33%. Among the 14 cases with variation,there were 10 cases of type Ⅱ （71.43%）,which was composed of 4 cases of type Ⅱ-1（28.57%） and respectively 2 cases of type Ⅱ-2,Ⅱ-3 and Ⅱ-4（14.29% each）. There were 2 cases of type Ⅲ,and 2 cases of type VI （14.29% each）. Conclusions 3D PROSET sequence is useful in the visualization and diagnosis of LSNRA.

关 键 词：腰骶神经根变异 三维 磁共振成像 

分 类 号：R445.2[医药卫生—影像医学与核医学]