ArticleQuantitative imaging in medicine and surgery2025
Blood flow changes in the transverse-sigmoid sinus junction following effective surgical reconstruction for unilateral pulsatile tinnitus with sigmoid sinus wall anomalies: a four-dimensional flow magnetic resonance imaging analysis.
Article in Quantitative imaging in medicine and surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed.
- Transverse sinus dominance predicts outcome after venous sinus stenting for pulsatile tinnitus.European radiology · 2026Article
- Hemodynamic Mechanisms in Venous Pulsatile Tinnitus: A 4D Flow MRI Analysis of Transverse-Sigmoid Sinus Abnormalities.Journal of magnetic resonance imaging : JMRI · 2026Article
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10 authors.
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Abstract
Background: Pulsatile tinnitus (PT) with sigmoid sinus wall anomalies (SSWAs) is often treated by surgical reconstruction. However, the effect of this surgical procedure on the PT-related blood flow is unclear. This study compared changes in the PT-related blood flow velocity and patterns in the transverse-sigmoid sinus junction (TSSJ) before and after surgical reconstruction using four-dimensional (4D) flow magnetic resonance imaging (MRI). Methods: A retrospective study analyzed patients with unilateral pulse-synchronous PT confirmed to have ipsilateral SSWAs on preoperative CT, who underwent surgical reconstruction and had pre- and postoperative 4D flow MRI, with PT eliminated or significantly alleviated after at least 6 months of follow-up. Quantitative and qualitative data of the blood flow properties, including bilateral velocity, and the net flow upstream and downstream of the TSSJ, as well as vortices in the TSSJ, were obtained and compared before and after surgery. Results: In total, 19 patients were included in the study, of whom, 6 had sigmoid sinus wall dehiscence (SSWD), and 13 had a diverticulum. Significant differences were only observed in the ipsilateral upstream average velocity (V Conclusions: Surgical reconstruction does not appear to have a significant effect on PT-related blood flow properties, which suggests that this surgery is safe; however, the risk of ongoing recurrence remains.
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