鼓室内注射钆后内耳三维磁共振成像的诊断价值及磁共振成像评分系统在迟发性内淋巴积水患者中的临床应用
Diagnostic value of three-dimensional magnetic resonance imaging of inner ear after intratympanic gadolinium injection, and clinical application of magnetic resonance imaging scoring system in patients with delayed endolymphatic hydrops.
作者信息
Gu X, Fang Z-M, Liu Y, Lin S-L, Han B, Zhang R, Chen X
机构信息
Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian Province, People's Republic of China.
Department of Radiology, First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian Province, People's Republic of China.
出版信息
J Laryngol Otol. 2014 Jan;128(1):53-9. doi: 10.1017/S0022215113003289. Epub 2013 Dec 20.
OBJECTIVE
Three-dimensional fluid-attenuated inversion recovery magnetic resonance imaging of the inner ear after intratympanic injection of gadolinium, together with magnetic resonance imaging scoring of the perilymphatic space, were used to investigate the positive identification rate of hydrops and determine the technique's diagnostic value for delayed endolymphatic hydrops.
METHODS
Twenty-five patients with delayed endolymphatic hydrops underwent pure tone audiometry, bithermal caloric testing, vestibular-evoked myogenic potential testing and three-dimensional magnetic resonance imaging of the inner ear after bilateral intratympanic injection of gadolinium. The perilymphatic space of the scanned images was analysed to investigate the positive identification rate of endolymphatic hydrops.
RESULTS
According to the magnetic resonance imaging scoring of the perilymphatic space and the diagnostic standard, 84 per cent of the patients examined had endolymphatic hydrops. In comparison, the positive identification rates for vestibular-evoked myogenic potential and bithermal caloric testing were 52 per cent and 72 per cent respectively.
CONCLUSION
Three-dimensional magnetic resonance imaging after intratympanic injection of gadolinium is valuable in the diagnosis of delayed endolymphatic hydrops and its classification. The perilymphatic space scoring system improved the diagnostic accuracy of magnetic resonance imaging.
目的
采用鼓室内注射钆后内耳的三维液体衰减反转恢复磁共振成像，以及对淋巴周围间隙进行磁共振成像评分，来研究积水的阳性识别率，并确定该技术对迟发性内淋巴积水的诊断价值。
方法
25例迟发性内淋巴积水患者在双侧鼓室内注射钆后，接受了纯音听力测定、冷热试验、前庭诱发肌源性电位测试和内耳三维磁共振成像。对扫描图像的淋巴周围间隙进行分析，以研究内淋巴积水的阳性识别率。
结果
根据淋巴周围间隙的磁共振成像评分及诊断标准，84%的受检患者存在内淋巴积水。相比之下，前庭诱发肌源性电位和冷热试验的阳性识别率分别为52%和72%。
结论
鼓室内注射钆后的三维磁共振成像在迟发性内淋巴积水的诊断及其分类中具有重要价值。淋巴周围间隙评分系统提高了磁共振成像的诊断准确性。
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