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Author:

Mu, Zhenxia (Mu, Zhenxia.) | Zhuang, Lihui (Zhuang, Lihui.) | Zhao, Pengfei (Zhao, Pengfei.) | Gao, Bin (Gao, Bin.) | Liu, Youjun (Liu, Youjun.) | Wang, Zhenchang (Wang, Zhenchang.) | Yang, Shifeng (Yang, Shifeng.) | Wang, Ximing (Wang, Ximing.)

Indexed by:

Scopus SCIE

Abstract:

Sigmoid sinus wall dehiscence (SSWD) is an important etiology of venous pulsatile tinnitus (VPT) and is treated by sigmoid sinus wall reconstruction (SSWR). This study aimed to investigate the therapeutic effects of the different degrees of SSWR and the prognostic effect in patients with VPT. Personalized models of three patients with SSWD (control), 3/4SSWD, 1/2SSWD, 1/4SSWD, and 0SSWD were reconstructed. A multiphysics interaction approach was applied to elucidate the biomechanical and acoustic changes. Results revealed that after SSWR, the average pressure of venous vessel on the SSWD region reduced by 33.70 & PLUSMN; 12.53%, 35.86 & PLUSMN; 12.39%, and 39.70 & PLUSMN; 12.45% (mean & PLUSMN; SD) in three patients with 3/4SSWD, 1/2SSWD, and 1/4SSWD. The maximum displacement of the SSWR region reduced by 25.91 & PLUSMN; 30.20%, 37.20 & PLUSMN; 31.47%, 52.60 & PLUSMN; 34.66%, and 79.35 & PLUSMN; 18.13% (mean & PLUSMN; SD) in three patients with 3/4SSWD, 1/2SSWD, 1/4SSWD, and 0SSWD, with a magnitude approximately 10(-3) times that of the venous vessel in the SSWD region. The sound pressure level at the tympanum reduced by 23.72 & PLUSMN; 1.91%, 31.03 & PLUSMN; 14.40%, 45.62 & PLUSMN; 19.11%, and 128.46 & PLUSMN; 15.46% (mean & PLUSMN; SD). The SSWR region was still loaded with high stress in comparison to the surrounding region. The SSWR region of the temporal bone effectively shielded the high wall pressure and blocked the transmission of venous vessel vibration to the inner ear. Patients with inadequate SSWR still had residual VPT symptoms despite the remission of VPT symptoms. Complete SSWR could completely solve VPT issues. High-stress distribution of the SSWR region may be the cause of the recurrence of VPT symptoms.

Keyword:

sigmoid sinus wall dehiscence numerical simulation multiphysics interaction pulsatile tinnitus biomechanical

Author Community:

  • [ 1 ] [Mu, Zhenxia]Shandong First Med Univ, Shandong Prov Hosp, Dept Radiol, Jinan 250021, Peoples R China
  • [ 2 ] [Zhuang, Lihui]Shandong First Med Univ, Shandong Prov Hosp, Dept Radiol, Jinan 250021, Peoples R China
  • [ 3 ] [Yang, Shifeng]Shandong First Med Univ, Shandong Prov Hosp, Dept Radiol, Jinan 250021, Peoples R China
  • [ 4 ] [Wang, Ximing]Shandong First Med Univ, Shandong Prov Hosp, Dept Radiol, Jinan 250021, Peoples R China
  • [ 5 ] [Zhao, Pengfei]Capital Med Univ, Beijing Friendship Hosp, Dept Radiol, Beijing 100050, Peoples R China
  • [ 6 ] [Wang, Zhenchang]Capital Med Univ, Beijing Friendship Hosp, Dept Radiol, Beijing 100050, Peoples R China
  • [ 7 ] [Gao, Bin]Beijing Univ Technol, Fac Environm & Life Sci, Beijing 100124, Peoples R China
  • [ 8 ] [Liu, Youjun]Beijing Univ Technol, Fac Environm & Life Sci, Beijing 100124, Peoples R China

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Source :

BIOENGINEERING-BASEL

Year: 2023

Issue: 6

Volume: 10

4 . 6 0 0

JCR@2022

Cited Count:

WoS CC Cited Count: 4

SCOPUS Cited Count: 4

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 9

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