The Experts below are selected from a list of 6549 Experts worldwide ranked by ideXlab platform

Shusheng Gong - One of the best experts on this subject based on the ideXlab platform.

  • Surgical efficacy analysis of venous pulsatile tinnitus related to Sigmoid Sinus diverticulum
    Lin chuang er bi yan hou tou jing wai ke za zhi = Journal of clinical otorhinolaryngology head and neck surgery, 2020
    Co-Authors: Jing Xie, Shen Liu, Shusheng Gong
    Abstract:

    Objective:To discuss the outcomes of the surgical treatment of venous pulsatile tinnitus caused by Sigmoid Sinus diverticulum. Method:Fifty-eight patients with venous pulsatile tinnitus caused by unilateral Sigmoid Sinus diverticulum were admitted. The patients' tinnitus was graded and treated by Sigmoid Sinus bone wall reconstruction. The maximum cross-sectional area of Sigmoid Sinus diverticulum defect was measured in 28 patientsc. All the patients were followed up for 3 to 44 months after operation to analyze the improvement of postoperative tinnitus, the relationship between the size of the Sigmoid Sinus cross-sectional area and the degree of tinnitus and length of disease statistically. Result:Postoperative tinnitus was cured in 41 cases（70.69%）,markedly effective in 10 cases（17.24%）, effective in 3 cases（5.17%） and ineffective in 4 cases（6.90%）. There was a statistically significant difference in the degree of tinnitus before and after surgery （P 0.05）. Conclusion:The Sigmoid Sinus bone wall reconstruction can effectively relieve venous pulsatile tinnitus related to Sigmoid Sinus diverticulum while ensuring patient safety.

  • Temporal bone contrast-enhanced high-resolution CT evaluation of pulsatile tinnitus after Sigmoid Sinus wall reconstruction.
    Acta radiologica (Stockholm Sweden : 1987), 2018
    Co-Authors: Ding Heyu, Shusheng Gong, Rong Zeng, Guopeng Wang, Pengfei Zhao, Liu Xuehuan, Zhen-chang Wang
    Abstract:

    BackgroundSigmoid Sinus wall reconstruction (SSWR) is a proven effective treatment for pulsatile tinnitus (PT) caused by Sigmoid Sinus wall dehiscence (SSWD) with or without Sigmoid Sinus diverticu...

  • Sigmoid Sinus Wall Reconstruction for Pulsatile Tinnitus Caused by Sigmoid Sinus Wall Dehiscence: A Single-Center Experience.
    PloS one, 2016
    Co-Authors: Rong Zeng, Xi-hong Liang, Zhen-chang Wang, Zhaohui Liu, Guopeng Wang, Pengfei Zhao, Shusheng Gong
    Abstract:

    Objective To evaluate clinical characteristics and present surgical outcomes of PT caused by Sigmoid Sinus wall dehiscence (SSWD) Methods This study retrospectively reviewed 34 patients with PT who were diagnosed with SSWD in our institution between December 2008 and July 2013. Among them, 27 patients underwent Sigmoid Sinus wall reconstruction (surgery group) and 7 patients refused surgery (non-surgery group). Preoperative data were obtained from the patients’ medical records. All patients were followed up regularly for at least 25 months. Preoperative and postoperative computed tomography angiography (CTA) images were compared. Student’s t-tests were used to compare age, body mass index (BMI) and preoperative Tinnitus Handicap Inventory (THI) scores between the surgery and the non-surgery groups and to compare pre- and follow-up THI scores. Results There was no significant difference in age, body mass index, or preoperative THI scores between groups. Following surgery, 14 patients had complete resolution, 5 had partial resolution, 7 experienced no change and PT was aggravated in 1 patient. The difference between preoperative and postoperative THI scores was significant. No severe complications were found postoperatively. Comparison of the preoperative and postoperative CTA images revealed that remnant unrepaired dehiscences were the cause of unsatisfactory outcomes following surgery. In the non-surgery group, PT remained largely unchanged. Conclusions Sigmoid Sinus wall reconstruction is an effective and safe treatment for PT caused by SSWD. It is imperative that all regions of the dehiscence are sufficiently exposed and resurfaced during surgery.

  • Surgical treatment of pulsatile tinnitus caused by the Sigmoid Sinus diverticulum: a preliminary study.
    Medicine, 2015
    Co-Authors: Guopeng Wang, Zhaohui Liu, Zhen-chang Wang, Rong Zeng, Shusheng Gong
    Abstract:

    The Sigmoid Sinus diverticulum (SSD) is an increasingly recognized cause of pulsatile tinnitus (PT). Surgical reconstruction of the Sigmoid Sinus wall has been found to be highly effective for SSD; however, surgical techniques still need to be refined to reduce the incidence of serious postoperative complications. Moreover, scrutinizing more cases of SSD is desirable for establishing the diagnostic criteria and standardizing the surgical technique. This study was retrospectively undertaken in 28 patients who were diagnosed with SSD upon computed tomography angiography (CTA) and digital subtraction angiography findings at Beijing Tongren Hospital in China. A majority of patients (20/28) presented with SSD and accompanying Sigmoid Sinus wall dehiscence (SSWD). Twenty-five patients opted to undergo Sigmoid Sinus wall reconstruction, and 3 patients refused surgery. Following surgery, 17 patients experienced complete resolution of PT, 3 patients experienced partial resolution, and 5 patients experienced no change in PT. No serious complications were found postoperatively. A comparative analysis of the preoperative and postoperative CTA findings suggested that completely resolving SSD and the accompanying SSWD resulted in the elimination of PT. In conclusion, SSD is generally accompanied by SSWD. Sigmoid Sinus wall reconstruction is a safe and effective approach for the treatment of SSD. During surgery, completely resolving both SSD and SSWD is advisable, and maintaining the normal diameter of the Sigmoid Sinus is imperative.

  • Sigmoid Sinus diverticulum and pulsatile tinnitus: analysis of CT scans from 15 cases
    Acta radiologica (Stockholm Sweden : 1987), 2013
    Co-Authors: Zhaohui Liu, Shusheng Gong, Zhen-chang Wang, Jun-fang Xian, Chengfang Chen, Yong-zhe Wang, Xi-hong Liang
    Abstract:

    BackgroundAlthough the imaging features of Sigmoid Sinus diverticulum induced pulsatile tinnitus (PT) have been presented in some extent, detailed imaging findings still have not been systematically evaluated and precise diagnostic radiographic criteria has not been established.PurposeTo examine the computed tomography (CT) characteristics of Sigmoid Sinus diverticulum accompanied with PT.Material and MethodsFifteen PT patients with Sigmoid Sinus diverticula proven by surgery were recruited after consenting. CT images of 15 patients were obtained and analyzed, including features of diverticula, brain venous systems, integrity of the Sigmoid plate, and the degree of temporal bone pneumatization.ResultsSigmoid Sinus diverticulum was located on the same side of PT in 15 patients. Diverticula originated at the superior curve of the Sigmoid Sinus in 11 patients and the descending segment of the Sigmoid Sinus in four patients. Sigmoid Sinus diverticula focally eroded into the adjacent mastoid air cells in 12 pa...

Randall T. Higashida - One of the best experts on this subject based on the ideXlab platform.

  • Resolution of pulsatile tinnitus after coil embolization of Sigmoid Sinus diverticulum
    2014
    Co-Authors: Matthew R Amans, Charles E Stout, Christopher F. Dowd, Randall T. Higashida, S.w. Hetts, Daniel L. Cooke, Jared Narvid, Van V. Halbach, California San Francisco
    Abstract:

    Venous Sinus diverticulum is a rare vascular cause for pulsatile tinnitus characterized by an out pouching of the venous Sinus into the calvarium, usually involving the Sigmoid venous Sinus. Sigmoid Sinus diverticulum is often associated with upstream Sinus stenosis. While the exact mechanism of sound generation from a Sinus diverticulum is unclear, several case reports have suggested that pulsatile tinnitus can resolve after remodeling of venous blood flow such that the diverticulum is excluded from the circulation. Case reports have also suggested treatment of both the Sigmoid Sinus diverticulum and the often-associated upstream Sinus stenosis may ameliorate pulsatile tinnitus. We report a case of trans-venous coil embolization of a Sigmoid Sinus diverticulum without treatment of an additionally identified upstream Sinus stenosis, resulting in cure of the patient’s pulsatile tinnitus. A review of endovascular and open surgical treatment of Sinus diverticula in the treatment of pulsatile tinnitus is also presented.

  • parallel venous channel as the recipient pouch in transverse Sigmoid Sinus dural fistulae
    Neurosurgery, 2003
    Co-Authors: Louis P Caragine, Christopher F. Dowd, Van V Halbach, Randall T. Higashida
    Abstract:

    OBJECTIVE The most common location for dural arteriovenous fistulae (AVFs) is the transverse/Sigmoid Sinus. We describe our prospective analysis of data for 10 patients with recipient fistulae parallel to the transverse/Sigmoid Sinus. Recognition of this entity allows embolization of the fistula with preservation of the parent Sinus. This report reviews the presentation and angiographic characteristics of the "parallel venous channel" and the treatment results for this series of patients. METHODS Between 1995 and June 2002, at the medical center of the University of California, San Francisco, we identified 10 patients with a parallel venous channel as the recipient pouch for all arterial input into a transverse/Sigmoid Sinus AVF. The clinical presentations, angiographic features, endovascular treatments, and outcomes are described. Angiographic follow-up monitoring was performed for 1 to 6 years for all patients with cortical venous drainage (5 of 10 patients). Clinical follow-up periods ranged from 1 to 7 years. RESULTS All patients presented with pulsatile tinnitus disruptive to sleep. Other symptoms included severe headaches, papilledema and visual disturbances, hemiparesis, and mastoid pain. All 10 parallel venous channels communicated with the transverse or Sigmoid Sinus. Cortical venous drainage was present in 50% of cases. Endovascular ablative procedures, using either coils or ethanol, were performed for all patients. The parallel venous channel was successfully embolized, with preservation of the transverse/Sigmoid Sinus, for all 10 patients. There were no major complications. All patients experienced resolution of their symptoms, with no recurrence. CONCLUSION The existence of a parallel venous channel as the recipient pouch for all arterial inflow in a series of 10 transverse/Sigmoid Sinus AVFs is described. Endovascular obliteration of the parallel channel, with preservation of the parent Sinus, was successfully performed for all 10 patients. Recognition of the parallel venous channel is clinically important for the treatment of transverse/Sigmoid AVFs.

  • Parallel venous channel as the recipient pouch in transverse/Sigmoid Sinus dural fistulae.
    Neurosurgery, 2003
    Co-Authors: Louis P Caragine, Christopher F. Dowd, Van V. Halbach, Randall T. Higashida
    Abstract:

    OBJECTIVE The most common location for dural arteriovenous fistulae (AVFs) is the transverse/Sigmoid Sinus. We describe our prospective analysis of data for 10 patients with recipient fistulae parallel to the transverse/Sigmoid Sinus. Recognition of this entity allows embolization of the fistula with preservation of the parent Sinus. This report reviews the presentation and angiographic characteristics of the "parallel venous channel" and the treatment results for this series of patients. METHODS Between 1995 and June 2002, at the medical center of the University of California, San Francisco, we identified 10 patients with a parallel venous channel as the recipient pouch for all arterial input into a transverse/Sigmoid Sinus AVF. The clinical presentations, angiographic features, endovascular treatments, and outcomes are described. Angiographic follow-up monitoring was performed for 1 to 6 years for all patients with cortical venous drainage (5 of 10 patients). Clinical follow-up periods ranged from 1 to 7 years. RESULTS All patients presented with pulsatile tinnitus disruptive to sleep. Other symptoms included severe headaches, papilledema and visual disturbances, hemiparesis, and mastoid pain. All 10 parallel venous channels communicated with the transverse or Sigmoid Sinus. Cortical venous drainage was present in 50% of cases. Endovascular ablative procedures, using either coils or ethanol, were performed for all patients. The parallel venous channel was successfully embolized, with preservation of the transverse/Sigmoid Sinus, for all 10 patients. There were no major complications. All patients experienced resolution of their symptoms, with no recurrence. CONCLUSION The existence of a parallel venous channel as the recipient pouch for all arterial inflow in a series of 10 transverse/Sigmoid Sinus AVFs is described. Endovascular obliteration of the parallel channel, with preservation of the parent Sinus, was successfully performed for all 10 patients. Recognition of the parallel venous channel is clinically important for the treatment of transverse/Sigmoid AVFs.

David J. Eisenman - One of the best experts on this subject based on the ideXlab platform.

  • evaluation and treatment of pulsatile tinnitus associated with Sigmoid Sinus wall anomalies
    Laryngoscope, 2018
    Co-Authors: David J. Eisenman, Prashant Raghavan, Ronna Hertzano, Robert E. Morales
    Abstract:

    Objective Describe clinical and radiographic features of Sigmoid Sinus wall anomalies (SSWA) associated with pulsatile tinnitus (PT) and determine factors predictive of response to surgery. Methods Preoperative diagnostic imaging and treatment response were reviewed after surgical repair of 40 ears among 38 consecutive patients presenting with PT associated with SSWA who underwent transtemporal Sinus wall reconstruction. Results Twenty-three ears had isolated Sigmoid Sinus dehiscence, and 17 had diverticulum. The rates of transverse Sinus stenosis (TSS) and empty sella, 66% and 32% respectively, were significantly higher than in historical controls (P = 0.02 and 0.001). Thirty-six out of 40 subjects (90%) had complete resolution of their PT following surgery, including all those with a diverticulum. For subjects with dehiscence alone without diverticulum, a favorable response to surgery was strongly associated with the presence of TSS (P = 0.01) and empty sella (P = 0.02). Conclusion Sigmoid Sinus diverticulum and dehiscence are a clinically important cause of PT. Women of childbearing age with an elevated body mass index (BMI) are commonly affected, and there is a high rate of associated TSS and empty sella. Transtemporal Sinus wall reconstruction has a high rate of success in appropriately selected patients. Patients with isolated Sinus wall dehiscence without diverticulum, TSS, or empty sella are less likely to respond to transtemporal Sinus wall reconstruction. These data imply a multifactorial cause of PT in at least some patients with SSWA. Level of evidence 4 Laryngoscope, 128:S1-S13, 2018.

  • Postoperative Imaging Findings following Sigmoid Sinus Wall Reconstruction for Pulse Synchronous Tinnitus.
    AJNR. American journal of neuroradiology, 2015
    Co-Authors: Prashant Raghavan, Y. Serulle, Dheeraj Gandhi, Robert E. Morales, K. Quinn, K. Angster, R. Hertzano, David J. Eisenman
    Abstract:

    BACKGROUND AND PURPOSE: Transmastoid Sigmoid Sinus wall reconstruction is a surgical technique increasingly used for the treatment of pulsatile tinnitus arising from Sigmoid Sinus wall anomalies. 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 patients who underwent this procedure. MATERIALS AND METHODS: The medical records of 40 consecutive patients who underwent transmastoid Sigmoid Sinus wall reconstruction were reviewed. Thirteen of 40 patients 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: Tinnitus resolved in 38 of 40 patients. Nine patients were imaged postoperatively for suspected complications, including dural Sinus thrombosis, facial swelling, and wound drainage. Two patients underwent imaging for persistent tinnitus, and 2, for development of tinnitus 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 patients, there was extrinsic compression of the Sigmoid Sinus by graft material. Dural Sinus thrombosis occurred in 2 patients. 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 venous thrombosis. Awareness of the imaging characteristics of the graft materials used enables this differentiation.

Robert E. Morales - One of the best experts on this subject based on the ideXlab platform.

  • evaluation and treatment of pulsatile tinnitus associated with Sigmoid Sinus wall anomalies
    Laryngoscope, 2018
    Co-Authors: David J. Eisenman, Prashant Raghavan, Ronna Hertzano, Robert E. Morales
    Abstract:

    Objective Describe clinical and radiographic features of Sigmoid Sinus wall anomalies (SSWA) associated with pulsatile tinnitus (PT) and determine factors predictive of response to surgery. Methods Preoperative diagnostic imaging and treatment response were reviewed after surgical repair of 40 ears among 38 consecutive patients presenting with PT associated with SSWA who underwent transtemporal Sinus wall reconstruction. Results Twenty-three ears had isolated Sigmoid Sinus dehiscence, and 17 had diverticulum. The rates of transverse Sinus stenosis (TSS) and empty sella, 66% and 32% respectively, were significantly higher than in historical controls (P = 0.02 and 0.001). Thirty-six out of 40 subjects (90%) had complete resolution of their PT following surgery, including all those with a diverticulum. For subjects with dehiscence alone without diverticulum, a favorable response to surgery was strongly associated with the presence of TSS (P = 0.01) and empty sella (P = 0.02). Conclusion Sigmoid Sinus diverticulum and dehiscence are a clinically important cause of PT. Women of childbearing age with an elevated body mass index (BMI) are commonly affected, and there is a high rate of associated TSS and empty sella. Transtemporal Sinus wall reconstruction has a high rate of success in appropriately selected patients. Patients with isolated Sinus wall dehiscence without diverticulum, TSS, or empty sella are less likely to respond to transtemporal Sinus wall reconstruction. These data imply a multifactorial cause of PT in at least some patients with SSWA. Level of evidence 4 Laryngoscope, 128:S1-S13, 2018.

  • Postoperative Imaging Findings following Sigmoid Sinus Wall Reconstruction for Pulse Synchronous Tinnitus.
    AJNR. American journal of neuroradiology, 2015
    Co-Authors: Prashant Raghavan, Y. Serulle, Dheeraj Gandhi, Robert E. Morales, K. Quinn, K. Angster, R. Hertzano, David J. Eisenman
    Abstract:

    BACKGROUND AND PURPOSE: Transmastoid Sigmoid Sinus wall reconstruction is a surgical technique increasingly used for the treatment of pulsatile tinnitus arising from Sigmoid Sinus wall anomalies. 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 patients who underwent this procedure. MATERIALS AND METHODS: The medical records of 40 consecutive patients who underwent transmastoid Sigmoid Sinus wall reconstruction were reviewed. Thirteen of 40 patients 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: Tinnitus resolved in 38 of 40 patients. Nine patients were imaged postoperatively for suspected complications, including dural Sinus thrombosis, facial swelling, and wound drainage. Two patients underwent imaging for persistent tinnitus, and 2, for development of tinnitus 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 patients, there was extrinsic compression of the Sigmoid Sinus by graft material. Dural Sinus thrombosis occurred in 2 patients. 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 venous thrombosis. Awareness of the imaging characteristics of the graft materials used enables this differentiation.

Zhen-chang Wang - One of the best experts on this subject based on the ideXlab platform.

  • Temporal bone contrast-enhanced high-resolution CT evaluation of pulsatile tinnitus after Sigmoid Sinus wall reconstruction.
    Acta radiologica (Stockholm Sweden : 1987), 2018
    Co-Authors: Ding Heyu, Shusheng Gong, Rong Zeng, Guopeng Wang, Pengfei Zhao, Liu Xuehuan, Zhen-chang Wang
    Abstract:

    BackgroundSigmoid Sinus wall reconstruction (SSWR) is a proven effective treatment for pulsatile tinnitus (PT) caused by Sigmoid Sinus wall dehiscence (SSWD) with or without Sigmoid Sinus diverticu...

  • Sigmoid Sinus Wall Reconstruction for Pulsatile Tinnitus Caused by Sigmoid Sinus Wall Dehiscence: A Single-Center Experience.
    PloS one, 2016
    Co-Authors: Rong Zeng, Xi-hong Liang, Zhen-chang Wang, Zhaohui Liu, Guopeng Wang, Pengfei Zhao, Shusheng Gong
    Abstract:

    Objective To evaluate clinical characteristics and present surgical outcomes of PT caused by Sigmoid Sinus wall dehiscence (SSWD) Methods This study retrospectively reviewed 34 patients with PT who were diagnosed with SSWD in our institution between December 2008 and July 2013. Among them, 27 patients underwent Sigmoid Sinus wall reconstruction (surgery group) and 7 patients refused surgery (non-surgery group). Preoperative data were obtained from the patients’ medical records. All patients were followed up regularly for at least 25 months. Preoperative and postoperative computed tomography angiography (CTA) images were compared. Student’s t-tests were used to compare age, body mass index (BMI) and preoperative Tinnitus Handicap Inventory (THI) scores between the surgery and the non-surgery groups and to compare pre- and follow-up THI scores. Results There was no significant difference in age, body mass index, or preoperative THI scores between groups. Following surgery, 14 patients had complete resolution, 5 had partial resolution, 7 experienced no change and PT was aggravated in 1 patient. The difference between preoperative and postoperative THI scores was significant. No severe complications were found postoperatively. Comparison of the preoperative and postoperative CTA images revealed that remnant unrepaired dehiscences were the cause of unsatisfactory outcomes following surgery. In the non-surgery group, PT remained largely unchanged. Conclusions Sigmoid Sinus wall reconstruction is an effective and safe treatment for PT caused by SSWD. It is imperative that all regions of the dehiscence are sufficiently exposed and resurfaced during surgery.

  • Surgical treatment of pulsatile tinnitus caused by the Sigmoid Sinus diverticulum: a preliminary study.
    Medicine, 2015
    Co-Authors: Guopeng Wang, Zhaohui Liu, Zhen-chang Wang, Rong Zeng, Shusheng Gong
    Abstract:

    The Sigmoid Sinus diverticulum (SSD) is an increasingly recognized cause of pulsatile tinnitus (PT). Surgical reconstruction of the Sigmoid Sinus wall has been found to be highly effective for SSD; however, surgical techniques still need to be refined to reduce the incidence of serious postoperative complications. Moreover, scrutinizing more cases of SSD is desirable for establishing the diagnostic criteria and standardizing the surgical technique. This study was retrospectively undertaken in 28 patients who were diagnosed with SSD upon computed tomography angiography (CTA) and digital subtraction angiography findings at Beijing Tongren Hospital in China. A majority of patients (20/28) presented with SSD and accompanying Sigmoid Sinus wall dehiscence (SSWD). Twenty-five patients opted to undergo Sigmoid Sinus wall reconstruction, and 3 patients refused surgery. Following surgery, 17 patients experienced complete resolution of PT, 3 patients experienced partial resolution, and 5 patients experienced no change in PT. No serious complications were found postoperatively. A comparative analysis of the preoperative and postoperative CTA findings suggested that completely resolving SSD and the accompanying SSWD resulted in the elimination of PT. In conclusion, SSD is generally accompanied by SSWD. Sigmoid Sinus wall reconstruction is a safe and effective approach for the treatment of SSD. During surgery, completely resolving both SSD and SSWD is advisable, and maintaining the normal diameter of the Sigmoid Sinus is imperative.

  • Sigmoid Sinus diverticulum and pulsatile tinnitus: analysis of CT scans from 15 cases
    Acta radiologica (Stockholm Sweden : 1987), 2013
    Co-Authors: Zhaohui Liu, Shusheng Gong, Zhen-chang Wang, Jun-fang Xian, Chengfang Chen, Yong-zhe Wang, Xi-hong Liang
    Abstract:

    BackgroundAlthough the imaging features of Sigmoid Sinus diverticulum induced pulsatile tinnitus (PT) have been presented in some extent, detailed imaging findings still have not been systematically evaluated and precise diagnostic radiographic criteria has not been established.PurposeTo examine the computed tomography (CT) characteristics of Sigmoid Sinus diverticulum accompanied with PT.Material and MethodsFifteen PT patients with Sigmoid Sinus diverticula proven by surgery were recruited after consenting. CT images of 15 patients were obtained and analyzed, including features of diverticula, brain venous systems, integrity of the Sigmoid plate, and the degree of temporal bone pneumatization.ResultsSigmoid Sinus diverticulum was located on the same side of PT in 15 patients. Diverticula originated at the superior curve of the Sigmoid Sinus in 11 patients and the descending segment of the Sigmoid Sinus in four patients. Sigmoid Sinus diverticula focally eroded into the adjacent mastoid air cells in 12 pa...

  • Imaging findings of pulsatile tinnitus caused by Sigmoid Sinus abnormalities
    Chinese journal of radiology, 2010
    Co-Authors: Xi-hong Liang, Zhen-chang Wang, Zheng-yu Wang, Ben-tao Yang, Fei Yan, Jun-fang Xian, Guang-lu Chen
    Abstract:

    Objective To study a rare CT finding of pulsatile tinnitus(FT)caused by Sigmoid Sinus abnormalities.Methods The imaging data of PT caused by Sigmoid Sinus abnormalities were analyzed retrospectively in 15 patients(15 female).The median age was 45 years(24 to 63 years).The duration of persistence pulsatile tinnitus was from 0.5 year to 36.0 years(median time,2.0 years).The tinnitus was at left side in 5 patients and right side in 10 patients.Fifteen patients underwent HRCT of the temporal bone.Of them,12 patients underwent cerebral CT angiography and CT venogram(CTA/CTV),and 9 patients underwent cerebral digital subtraction angiography(DSA).Nine patients underwent transmastoid reconstruction surgery of the Sigmoid Sinus.Of them,the tinnitus was at left side in 2 patients and right side in 7 patients.Paired rank sum test was used to compare the cross-sectional area of the Sigmoid Sinus of the tinnitus side and normal side.Results On HRCT,focal bony coarse defect is shown in the anterior Sigmoid wall in 11 patients and anterolateral Sigmoid wall in 4 patients.On CTA/CTV,the Sigmoid Sinus focally protruded into the adjacent mastoid air cells and formed diverticulum in 10 patients.The pulsatile tinnitus disappeared immediately after transmastoid reconstruction surgery of the Sigmoid Sinus in all 9 patients.The cross-sectional area of the Sigmoid Sinus of the tinnitus side was 100.6(41.5-96.2)mm~2,it was 77.0(92.1-122.4)mm~2 in the nonmal side(Z=2.158,P=0.031).Conclusion Focal bony defect of the Sigmoid wall with Sigmoid Sinus diverticula is one of the causes which lead to pulsatile tinnitus,which can be easily identified by imaging examination. Key words: Tinnitus; Tomography,X-ray computed