Department of Radiology, Giresun University, Giresun, Turkey.
Department of ENT, Giresun University, Giresun, Turkey.
Auris Nasus Larynx. 2020 Aug;47(4):587-592. doi: 10.1016/j.anl.2020.01.009. Epub 2020 Feb 10.
To investigate the association between sinus tympani volume and petrous apex pneumatization in this retrospective-archival temporal bone computed tomography study.
We included 46 temporal bones with pneumatized petrous apex from 26 patients and 52 temporal bones without petrous apex pneumatization from 26 other patients. Using OsiriX software for MacOS (version 3.8.1, Pixmeo), we measured the volumes from three-dimensional sinus tympani models and compared the sinus tympani volumes and depths between the temporal bones with and without pneumatized petrous apex.
Among 150 patients totally reviewed, 26 (17.3%) had petrous apex pneumatization. The median sinus tympani volume was 16.05 (5.6-59.7) mm in temporal bones with pneumatized petrous apex and 8.7 (1.76-59.7) mmin temporal bones without. The sinus tympani volume was significantly greater in temporal bones with pneumatized petrous apex compared to those without (p < 0.001). Additionally, temporal bones with pneumatized petrous apex had a significantly deeper sinus tympani [median depth = 2.17 (0-3.04) mm] compared to the temporal bones without [median depth = 1.69 (0-3.73) mm] (p = 0.045). We found that petrous apex pneumatization was associated with deeper and larger sinus tympani.
Patients with pneumatized petrous apex had a greater sinus tympani volume associated with the increased risk of residual cholesteatoma.
本回顾性档案研究旨在通过颞骨计算机断层扫描，探究鼓窦容积与岩尖气化之间的关系。
本研究纳入了 26 例患者的 46 例岩尖气化的颞骨，以及 26 例无岩尖气化的颞骨。使用 MacOS 版的 OsiriX 软件（版本 3.8.1，Pixmeo），我们构建了三维鼓窦模型并测量了容积，对比了有、无岩尖气化的颞骨的鼓窦容积和深度。
在总共检查的 150 例患者中，26 例（17.3%）存在岩尖气化。有岩尖气化的颞骨的鼓窦容积中位数为 16.05（5.6-59.7）mm，无岩尖气化的颞骨的鼓窦容积中位数为 8.7（1.76-59.7）mm。有岩尖气化的颞骨的鼓窦容积明显大于无岩尖气化的颞骨（p<0.001）。此外，有岩尖气化的颞骨的鼓窦深度明显更深[中位数深度=2.17（0-3.04）mm]，而无岩尖气化的颞骨的鼓窦深度较浅[中位数深度=1.69（0-3.73）mm]（p=0.045）。我们发现岩尖气化与鼓窦更深、更大有关。
岩尖气化的患者鼓窦容积更大，胆脂瘤残留的风险也更高。
