BACKGROUND AND PURPOSE: Transmastoid sigmoid sinus wall reconstruction is a surgical technique increasingly used for the treatment of pulsatile @entity392 arising from sigmoid @entity50 . The imaging appearance of the temporal bone following this procedure has not been well-characterized. The purpose of this study was to evaluate the postoperative imaging appearance in a group of @entity1 who underwent this procedure. MATERIALS AND METHODS: The medical records of 40 consecutive @entity1 who underwent transmastoid sigmoid sinus wall reconstruction were reviewed. Thirteen of 40 @entity1 underwent postoperative imaging. Nineteen CT and 7 MR imaging examinations were assessed for the characteristics of the materials used for reconstruction, the impact of these on the adjacent sigmoid sinus, and complications. RESULTS: @entity392 resolved in 38 of 40 @entity1 . Nine @entity1 were imaged postoperatively for suspected complications, including dural sinus @entity715 , @entity4 , and wound drainage. Two @entity1 underwent imaging for persistent @entity392 , and 2, for development of @entity392 on the side contralateral to the side of surgery. The materials used for reconstruction (NeuroAlloderm, HydroSet, bone pate) demonstrated characteristic imaging appearances and could be consistently identified. In 5 of 13 @entity1 , there was extrinsic compression of the sigmoid sinus by graft material. @entity50 occurred in 2 @entity1 . CONCLUSIONS: The imaging findings following sigmoid sinus wall repair are characteristic. Graft materials may result in extrinsic compression of the sigmoid sinus, and this finding may be confused with dural @entity49 . Awareness of the imaging characteristics of the graft materials used enables this differentiation.

Postoperative Imaging Findings following Sigmoid Sinus Wall Reconstruction for Pulse Synchronous XXXX .

@entity1 :: ('9606', 'Species') :: ['patients'] @entity4 :: ('MESH:D004487', 'Disease') :: ['facial swelling'] @entity49 :: ('MESH:D019851', 'Disease') :: ['venous thrombosis'] @entity392 :: ('MESH:D014012', 'Disease') :: ['tinnitus', 'Tinnitus'] @entity715 :: ('MESH:D013927', 'Disease') :: ['thrombosis'] @entity50 :: ('MESH:D012851', 'Disease') :: ['sinus wall anomalies', 'Dural sinus thrombosis']
@entity392 :: (MESH:D014012,Disease) :: ['Tinnitus']
