Abstract #0290

Blood flow characterization in sigmoid-sinus using 4D-Flow MR among patients with pulsatile tinnitus

Yunduo Li¹, Le He¹, Xiangyu Cao², Xianling Wang³, Shubin Chen⁴, Huijun Chen¹, Rui Li¹, and Chun Yuan^1,5

¹Center for Biomedical Imaging Research, Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, People's Republic of China, ²Neurosurgery department of the general hospital of PLA, Beijing, People's Republic of China, ³Xuanwu Hospital, Capital Medical University, Beijing, People's Republic of China, ⁴Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, People's Republic of China, ⁵Department of Radiology, University of Washington, Seattle, United States

Pulsatile tinnitus (PT) is suspected to be associated with abnormal hemodynamics in sigmoid-sinus. In this study, we used 4D-Flow MRI to characterize blood flow in sigmoid-sinus among patients with pulsatile tinnitus and demonstrated that high blood velocity in sigmoid-sinus might be an authentic marker of PT. This study may provide more information for diagnosis and treatment of pulsatile tinnitus, especially for patients with PT of venous origin.

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