• Zhonghua yi xue za zhi · Sep 2013

    [Value of temporal bone dual phase contrast enhancement computed tomography in diagnosing causes of pulsatile tinnitus].

    • Zhao-hui Liu, Peng-fei Zhao, Guo-peng Wang, Jun-fang Xian, Xi-Hong Liang, Hong Jiang, Rong Zeng, Han Lü, Shu-sheng Gong, and Zhen-chang Wang.
    • Department of Radiology,Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China.
    • Zhonghua Yi Xue Za Zhi. 2013 Sep 3; 93 (33): 2613-6.

    ObjectiveTo evaluate the value of temporal bone dual phase contrast enhancement computed tomography (DPCT) in diagnosing the causes of pulsatile tinnitus (PT).MethodsWe retrospectively analyzed the DPCT findings of 157 patients with unilateral PT. Temporal bone High-resolution CT (HRCT) was performed in 71 patients, magnetic resonance imaging (MRI) in 80 and digital subtraction angiography (DSA) in 89.ResultsIn 71 patients with both DPCT and HRCT scan, a total of 68 causes were found. The accuracy of DPCT was 100% it was significant higher than that of HRCT (77.9%). In 80 patients with both DPCT and MRI, 83 causes were known. The accuracy of DPCT (94.0%) was significantly higher than that of MRI (8.4%). In 89 patients with both DPCT and DSA scan, 99 causes were identified. The accuracy of DPCT was 91.9% and it was significantly higher than that of DSA (15.2%).ConclusionDPCT may be an ideal imaging modality for diagnosing the causes of PT.

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