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作 者:彭建鸿[1,2] 王磊 黄自立[4] 肖越勇[4] 林井副[1]
机构地区:[1]海军总医院影像科,北京100037 [2]南方医科大学第三临床医学院,广州510500 [3]山东诸城市人民医院放射科,262200 [4]解放军总医院放射诊断科,北京100853
出 处:《武警医学》2014年第11期1135-1138,共4页Medical Journal of the Chinese People's Armed Police Force
基 金:海军后勤部科研计划项目(07-3306)
摘 要:目的 探讨第5腰神经(L5)病变高分辨率CT(high-resolution computed tomography,HRCT)重建同层显示的可行性,为该神经病变的临床诊断提供依据。方法 筛选20例(40侧)正常及30例(41侧)病变者的L5神经。使用美国GE公司Light Speed 16层和PHILIPS i CT 256层螺旋CT扫描,然后传至工作站(GE,ADW4.1及Philips Brilliance 3.0)进行多平面重建,观察L5神经正常解剖及病变基本表现。结果 正常L5神经在斜冠状面上呈双侧对称的弧形条索状,整体形态呈"八字形",由硬膜囊穿出至椎管外腰大肌缘20例(100%);16例(80%)显示至骶髂关节上段。斜冠状内旋切面上20例(100%)显示起点至骶髂关节平面处;6例(30%)至骶丛神经或坐骨神经上段。显示L5神经病变处走行方向及张力状态改变16例(24侧),模糊15例(18侧),受压及萎缩12例(18侧),局部增粗3例(5侧),扭曲变形1例(1侧)。其中导致神经病变L5~S1椎间盘侧方突出伴骨质增生10例(15侧),L5横突肥大5例(8侧),L5峡部裂8例(10侧),L5压缩骨折3例(4侧),腰骶段恶性肿瘤4例(4侧)。结论 HRCT重建同层显示技术能够清晰显示L5神经解剖及相关疾病,对该神经疾病可提供有价值的诊断信息。Objective To explore the feasibility of CT on multiple plane reconstruction of the lesion 5th lumber nerve at the same slice,providing the basis for the clinical diagnosis of L5 neuropathy. Methods 30 patients with of L5 neuropathy and 20 normal adults were scanned by GE Light Speed 16 and PHILIPS i CT 256-slice CT,reconstructed with their own workstations( GE,ADW4. 1and Philips Brilliance 3. 0) to observe the normal anatomy and basic disease of L5 nerve. Results 20 cases( 40 sides) of normal L5 nerve were symmetrically displayed from starting point to margin of psoas major and 15 cases( 75%) to upper sacroiliac joint in oblique coronal plane. 20 cases( 100%) of L5 nerve were displayed from starting to sacroiliac joint plane and 6 cases( 30%) were shown to sacral plexus or upper sciatic nerve by internally rotating oblique coronal plane. In all of the L5 neuropathy,there were travel direction and tension status change in 16 cases( 24 sides),shrink in 12 cases( 18 sides),localized thickening 3 cases( 5 sides),fuzzy 15 cases( 18 sides) and distorted in 1 case( 1 side). L5 neuropathy involved L5-S1 disc lateral protrusion with bone hyperplasia( 10 cases),hypertrophy of transverse process of 5th lumbar vertebra( 5 cases),L5spondylolysis( 8 cases),L5 vertebral compression fracture( 3 cases) and pelvic malignancies( 4 cases). Conclusions HRCT multiple plane reconstruction technique at the same slice can provide a valuable diagnosis basis for L5 neuropathy.
分 类 号:R445.3[医药卫生—影像医学与核医学]
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