Features of Hirayama Disease on Fully Flexed Position Cervical MRI

B Yin; L Liu; D-Y Geng

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Features of Hirayama Disease on Fully Flexed Position Cervical MRI

机译：完全屈曲位颈MRI的平山病特征

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This study reports on cervical magnetic resonance imaging (MRI) performed in the fully flexed position in 13 male patients with Hirayama disease and 12 normal controls (males). The anterior–posterior diameter of the cervical cord at the superior margin of the C6 vertebral body was measured, as well as the angle between adjacent cervical bodies. Localized lower cervical-cord atrophy, cord flattening and abnormal signals in the posterior epidural space were studied. Patients demonstrated an increased angle between C5 and C6, and C6 cord lesions. There were significant differences between patients and controls in localized lower cervical-cord atrophy and cord flattening. Many patients were found to have a crescent-shaped high-intensity mass on T2WI MRI and a low-intensity mass on T1WI MRI in the posterior epidural space. In patients, there were specific imaging features of Hirayama disease on fully flexed MRI. Cervical MRI in the fully flexed position has significant value in the clinical diagnosis of Hirayama disease.

机译：这项研究报告了13例平山病男性患者和12例正常对照（男性）在完全屈曲位置进行的子宫颈磁共振成像（MRI）。测量C6椎体上缘的颈索前后直径，以及相邻颈椎之间的夹角。研究了硬膜外后间隙的局部下颈绳萎缩，脐带扁平和异常信号。患者表现出C5和C6以及C6脊髓损伤之间的夹角增加。患者和对照组之间在局部下颈绳萎缩和脐带扁平方面存在显着差异。在硬膜后腔中，许多患者在T2WI MRI上呈月牙形高强度肿块，而在T1WI MRI上呈低强度块。在患者中，完全弯曲的MRI表现出平山病的特殊影像学特征。颈椎MRI完全屈曲位置在平山病的临床诊断中具有重要价值。

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《Journal of International Medical Research》 |2011年第1期|共7页
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B Yin; L Liu; D-Y Geng;
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Features of Hirayama Disease on Fully Flexed Position Cervical MRI

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