横窦—乙状窦憩室引起搏动性耳鸣的CT诊断  

CT diagnosis in pulsatile tinnitus caused by transverse-sigmoid sinus diverticulum

作　　者：刘善凤[1] 肖武[2] 牟晓飞[1] 刘琳[3] 巩若箴[1] 

机构地区：[1]山东大学医学院山东省医学影像学研究所,山东济南250021 [2]中国医科大学附属盛京医院耳鼻咽喉科,辽宁沈阳110004 [3]山东兖矿集团总医院放射科,山东邹城273500

出　　处：《医学影像学杂志》2013年第4期500-502,共3页Journal of Medical Imaging

摘　　要：目的探讨横窦-乙状窦憩室引起的搏动性耳鸣的CT表现。方法搜集18例横窦-乙状窦憩室引起的搏动性耳鸣患者资料,分析其脑CT动静脉血管造影(CT Arteriography and Venography,CTA/CTV)检查的影像表现。结果 18例横窦-乙状窦憩室均发生在静脉窦优势引流侧;静脉窦双能量减影图像直观地显示横窦-乙状窦憩室,表现为静脉窦管腔局部呈囊袋样、指状及棘样突起;CTV图像能清楚地显示局部膨隆的静脉窦经邻近骨壁缺损处疝入邻近的乳突。结论脑CTA/CTV检查对诊断横窦-乙状窦憩室引起的搏动性耳鸣具有重要的价值。Objective To evaluate the CT imaging of pulsatile tinnitus caused by transverse-sigmoid sinus diverticulum. Methods We retrospectively studied CT arteriography and venography imaging of 18 cases of pulsatile tinnitus caused by transverse-sigmoid sinus diverticulum. Results 18 cases of transverse-sigmoid sinus diverticulum of pulsatile tinnitus pa- tients were all found in the dominant side of cerebral venous drainage system. Dual energy bone removal imaging of CTV can display the local expansion of the transverse-sigmoid sinus visually, like saccular, digitatio and processus spinosus. It was seen in CTV that the cerebral venous sinus focally protruding into the neighboring mastoid through the focal defect of bone shell overlying the transverse-sigmoid sinus and formed diverticulum in 18 patients. Conclusion CTA/V can be a valuable imaging tool in the diagnosis of pulsatile tinnitus caused by transverse-sigmoid sinus diverticulum.

关 键 词：搏动性耳鸣 横窦-乙状窦 憩室 体层摄影术 X线计算机 

分 类 号：R743[医药卫生—神经病学与精神病学] R814.42[医药卫生—临床医学]