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目的探讨局部脑血流（ｒＣＢＦ）断层显像对突发性感音神经性聋（简称突聋）的临床价值。方法对１０例正常志愿者，１９例传音性耳聋（简称传聋）及３１例突聋患者治疗前行ｒＣＢＦ显像，并与同期ＣＴ对照；随访突聋病例６～１２个月，并复查ｒＣＢＦ显像。结果①突聋的病灶（位于颞横回）与正常脑组织的放射性比值（Ｔ／ＮＴ）明显低于传聋和正常组；②ｒＣＢＦ显像诊断突聋的灵敏度（８０６％）和准确率（８８３％）明显高于ＣＴ（３２％和５０％）；③突聋的Ｔ／ＮＴ值与耳聋程度有较高的相关性；④ｒＣＢＦ显像无异常的突聋患者预后较好；⑤ｒＣＢＦ显像与临床预后观察有较高的一致性（８４６％）。结论ｒＣＢＦ显像对突聋的诊断明显优于ＣＴ。
Objective To investigate the clinical value of regional cerebral blood flow (rCBF) tomographic imaging in detecting sudden sensorineural hearing loss (sudden deafness). Methods 10 cases of normal volunteers, 19 cases of acoustic deafness (deafness) and 31 cases of sudden deafness before treatment rCBF imaging and CT control with the same period; follow-up sudden deaf patients for 6 to 12 months and review rCBF imaging. Results ① The ratio of radioactivity (T / NT) in patients with sudden deafness and normal brain tissue was significantly lower than that in deaf and normal subjects (2) The sensitivity and accuracy of rCBF in the diagnosis of sudden deafness (883%) was significantly higher than that of CT (32% and 50%). ③There was a high correlation between T / NT value and deafness in sudden deafness. ④The prognosis of patients with deafness without abnormalities of rCBF imaging was better ; ⑤ rCBF imaging and clinical prognosis have a higher consistency (84 6%). Conclusion rCBF imaging diagnosis of sudden deafness was significantly better than CT.