超声检查和磁共振成像在肘部尺神经病变中的诊断价值
Diagnostic value of ultrasonography and magnetic resonance imaging in ulnar neuropathy at the elbow.
作者信息
Ayromlou Hormoz, Tarzamni Mohammad K, Daghighi Mohammad Hossein, Pezeshki Mohammad Zakaria, Yazdchi Mohammad, Sadeghi-Hokmabadi Elyar, Sharifipour Ehsan, Ghabili Kamyar
机构信息
Neuroscience Research Center, Tabriz University of Medical Sciences, Tabriz 51666-14756, Iran.
出版信息
ISRN Neurol. 2012;2012:491892. doi: 10.5402/2012/491892. Epub 2012 Jul 24.
Aim. To evaluate the diagnostic value of ultrasonography and magnetic resonance imaging (MRI) in patients with ulnar neuropathy at the elbow (UNE). Methods. We prospectively performed electrodiagnostic, ultrasonographic, and MRI studies in UNE patients and healthy controls. Three cross-sectional area (CSA) measurements of the ulnar nerve at multiple levels along the arm and maximum CSA(-max) were recorded. Results. The ulnar nerve CSA measurements were different between the UNE severity grades (P < 0.05). CSA-max had the greatest sensitivity (93%) and specificity (68%). Moreover, CSA-max ≥10 mm(2) defined the severe UNE cases (sensitivity/specificity: 82%/72%). In MRI, ulnar nerve hyperintensity had the greatest sensitivity (90%) and specificity (80%). Conclusion. Ultrasonography using CSA-max is sensitive and specific in UNE diagnosis and discriminating the severe UNE cases. Furthermore, MRI particularly targeting at increased signal of the ulnar nerve can be a useful diagnostic test of UNE.
目的。评估超声检查和磁共振成像（MRI）在肘管综合征（UNE）患者中的诊断价值。方法。我们对UNE患者和健康对照者进行了前瞻性的电诊断、超声检查和MRI研究。记录了沿手臂多个水平的尺神经三个横截面积（CSA）测量值以及最大CSA（CSA-max）。结果。UNE严重程度分级之间的尺神经CSA测量值存在差异（P < 0.05）。CSA-max具有最高的敏感性（93%）和特异性（68%）。此外，CSA-max≥10 mm²定义为严重UNE病例（敏感性/特异性：82%/72%）。在MRI检查中，尺神经高信号具有最高的敏感性（90%）和特异性（80%）。结论。使用CSA-max的超声检查在UNE诊断及鉴别严重UNE病例方面具有敏感性和特异性。此外，特别针对尺神经信号增强的MRI检查可成为UNE的一项有用诊断测试。
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