C Dong1, P Zhao2, Z Liu3, W Xu4, H Lv2, S Pang2, Z Wang5. 1. Department of Radiology, Capital Medical University, Beijing Friendship Hospital, No. 95, Yong'an Road, Beijing 100000, China; Department of Radiology, The Affiliated Hospital of Qingdao University, No.16, Jiangsu Road, Qingdao 266000, China. 2. Department of Radiology, Capital Medical University, Beijing Friendship Hospital, No. 95, Yong'an Road, Beijing 100000, China. 3. Department of Radiology, Capital Medical University, Beijing Tongren Hospital, No.1, Dongjiaominxiang Road, Beijing 100000, China. 4. Department of Radiology, The Affiliated Hospital of Qingdao University, No.16, Jiangsu Road, Qingdao 266000, China. 5. Department of Radiology, Capital Medical University, Beijing Friendship Hospital, No. 95, Yong'an Road, Beijing 100000, China. Electronic address: wzhch0901@163.com.
Abstract
AIM: To assess the extent of sigmoid sinus dehiscence (SSD) on high-resolution computed tomography venography (HRCTV) or high-resolution computed tomography (HRCT) images in pulsatile tinnitus (PT) and non-PT groups to determine whether there is an association between the extent of SSD and occurrence of PT. MATERIALS AND METHODS: Twenty-eight SSD patients with ipsilateral PT and 28 age- and gender-matched SSD patients without PT who underwent HRCTV or HRCT were enrolled in this study and categorised into two groups: "PT group" and "non-PT group". The extent of SSD in each group was calculated and compared. RESULTS: The largest transverse diameter and largest vertical diameter of SSD in the PT group were 6.21±1.7 and 6.15±2.19 mm, respectively. The largest transverse diameter and largest vertical diameter of SSD in the non-PT group were 3.06±1.38 and 2.51±1.03 mm, respectively. The extent of SSD was statistically different between the two groups (p<0.001; p<0.001). CONCLUSIONS: As a cause of PT, SSD can also occur in individuals without PT symptoms. Preliminary findings suggest that there may be a potential correlation between the extent of SSD and an occurrence of PT.
AIM: To assess the extent of sigmoid sinus dehiscence (SSD) on high-resolution computed tomography venography (HRCTV) or high-resolution computed tomography (HRCT) images in pulsatile tinnitus (PT) and non-PT groups to determine whether there is an association between the extent of SSD and occurrence of PT. MATERIALS AND METHODS: Twenty-eight SSDpatients with ipsilateral PT and 28 age- and gender-matched SSDpatients without PT who underwent HRCTV or HRCT were enrolled in this study and categorised into two groups: "PT group" and "non-PT group". The extent of SSD in each group was calculated and compared. RESULTS: The largest transverse diameter and largest vertical diameter of SSD in the PT group were 6.21±1.7 and 6.15±2.19 mm, respectively. The largest transverse diameter and largest vertical diameter of SSD in the non-PT group were 3.06±1.38 and 2.51±1.03 mm, respectively. The extent of SSD was statistically different between the two groups (p<0.001; p<0.001). CONCLUSIONS: As a cause of PT, SSD can also occur in individuals without PT symptoms. Preliminary findings suggest that there may be a potential correlation between the extent of SSD and an occurrence of PT.