| 闵小红,顾华,马琳琳,张奕,郭晓娟,蒋涛.三维重T2液体衰减反转恢复序列不同时相诊断单侧突发性耳聋[J].中国医学影像技术,2018,34(7):994~997 |
| 三维重T2液体衰减反转恢复序列不同时相诊断单侧突发性耳聋 |
| Different phases of heavily T2 3D-fluid attenuated inversion recovery MRI in diagnosis of unilateral sudden hearing loss |
| 投稿时间：2017-10-18 修订日期：2018-04-07 |
| DOI：10.13929/j.1003-3289.201710059 |
| 中文关键词: 液体衰减反转恢复序列 听觉丧失,突发性 磁共振成像 |
| 英文关键词:Fluid-attenuated inversion recovery sequence Hearing loss,sudden Magnetic resonance imaging |
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| 中文摘要: |
| 目的 探讨三维重T2液体衰减反转恢复（HF）序列不同时相诊断单侧突发性耳聋的价值。方法 对42例单侧突发感音性耳聋患者行HF序列扫描，分别比较HF序列不同扫描时间点（平扫，增强后10 min、4 h）前庭及耳蜗信号强度比值的差异，以及同一扫描时间点前庭与耳蜗信号强度比值的差异。结果 42例中，18例（18/42，42.86%）内耳HF序列可见高信号。HF序列前庭、耳蜗信号强度比值均随扫描时间延长而增大，HF序列同一扫描时间点前庭信号强度比值均高于耳蜗（P均<0.05）。结论 HF序列增强扫描有利于显示单侧突发性耳聋病变，4 h延迟扫描对于内耳异常信号的改变更为敏感。 |
| 英文摘要: |
| Objective To investigate the value of different phases heavily T2W 3D-fluid attenuated inversion recovery (HF) MR imaging in diagnosis of unilateral sudden hearing loss.Methods Totally 42 patients with unilateral sudden sensorineural hearing loss (SSNHL) underwent HF sequence scanning. The differences in signal intensity ratios (SIR) of the vestibular and cochlear at different scanning time points of HF sequence (precontrast scan, 10 min and 4 h after enhancement), as well as differences of SIR between the cochlea and vestibule at the same scanning time point were compared.Results Among 42 patients, high signals in inner ear was found in 18 patients (18/42, 42.86%). SIR of vestibular and cochlear increased in delayed images, and SIR of the vestibular was higher than that of the cochlea at the same scan time of HF sequence (P<0.05).Conclusion Contrast enhanced HF sequence is conducive to displaying unilateral sudden deafness, and delayed images at 4 hours after administration of comtrast mediun were better in the demonstration of abnormal signal in the inner ear. |
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