Objective:　To　investigate　the　effect　of　the　blood　flow　direction　and　afflux　location　of　emissary　veins　(EVs)　on　the　hemodynamics　of　the　transverse-sigmoid　sinus　(TS-SS)　junction.Methods:　A　patient-specific　geometric　model　was　constructed　using　computed　tomography　venography　(CTV)　and　4D　flow　MR　data　from　a　venous　pulsatile　tinnitus　(PT)　patient.　New　EV　models　were　assembled　with　the　afflux　at　the　superior,　middle　and　inferior　portions　of　the　SS　from　the　original　model,　and　inlet　and　outlet　directions　were　applied.　Computational　fluid　dynamics　(CFD)　simulation　was　performed　to　analyze　the　wall　pressure　and　flow　pattern　of　the　TS-SS　junction　in　each　condition.Results:　Compared　to　the　model　without　EVs,　the　wall　pressure　was　greatly　increased　in　models　with　inlet　flow　and　greatly　decreased　in　models　with　outlet　flow.　The　more　closely　the　EV　approached　the　TS-SS,　the　larger　the　pressure　in　models　with　inlet　flow,　and　the　smaller　the　pressure　in　models　with　outlet　flow.　The　flow　streamline　in　the　lateral　part　of　the　TS-SS　junction　was　smooth　in　all　models.　The　streamlines　in　the　medial　part　were　regular　spirals　in　outlet　models　and　chaotic　in　inlet　models.　The　streamlines　showed　no　obvious　changes　regardless　of　afflux　location.　The　velocity　at　the　TS-SS　junction　of　inlet　models　were　uniform,　medium-low　flow　rate,　while　in　control　and　outlet　models　were　the　lateral　high　flow　rate　and　the　central　low　flow　rate.Conclusion:　The　flow　direction　and　afflux　location　of　EVs　affect　the　hemodynamics　of　the　TS-SS　junction,　which　may　influence　the　severity　of　PT.