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

作　　者：闵小红[1] 顾华[1] 马琳琳[2] 张奕[2] 郭晓娟[1] 蒋涛[1] MIN Xiaohong;GU Hua;MA Linlin;ZHANG Yi;GUO Xiaojuan;JIANG Tao(Department of Radiology;Department of Hyperbaric Oxygen,Beijing Chaoyang Hospital,Capital Medical University,Beijing 100020,China)

机构地区：[1]首都医科大学附属北京朝阳医院放射科,北京100020 [2]首都医科大学附属北京朝阳医院高压氧科,北京100020

出　　处：《中国医学影像技术》2018年第7期994-997,共4页Chinese Journal of Medical Imaging Technology

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10min、4h)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,4h延迟扫描对于内耳异常信号的改变更为敏感。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 hafter 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.

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 

分 类 号：R445.2[医药卫生—影像医学与核医学] R322.92[医药卫生—诊断学]