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小听神经瘤,尤其是局限在内听道内微听神经瘤的诊断历来是个难题,即使用第四代CT在强化扫描后亦难以确诊。CT结合碘油或碘水内听道造影虽对早期诊断有所裨益,但有并发严重蛛网膜炎,癫癎之虞,甚之危及生命。如用空气取代碘剂,方法简便,危险性小,且能清晰显示内听道血管,神经束及异常病变等,有助于早期确诊微小听神经瘤,本文报导38
Small acoustic neuroma, especially limited to the diagnosis of acoustic neuroma in the internal auditory canal has always been a problem that the use of fourth-generation CT in the enhanced scan is also difficult to diagnose. CT combined with iodized oil or iodine water in the auditory angiography may be useful for early diagnosis, but with severe arachnoiditis, epilepsy, and even life-threatening. Such as the use of air instead of iodine, the method is simple, less dangerous, and can clearly show the internal auditory canal, nerve bundles and abnormal lesions, etc., contribute to the early diagnosis of small acoustic neuroma, reported 38