Department of Otorhinolaryngology, Head and Neck Surgery, "Otto Koerner", Rostock University Medical Center, Rostock, Germany.
Institute of Diagnostic and Interventional Radiology, Pediatric and Neuroradiology, Rostock University Medical Center, Rostock, Germany.
Laryngoscope. 2021 Feb;131(2):386-391. doi: 10.1002/lary.28640. Epub 2020 Apr 4.
The aim of this study is to compare the common cavity (CC) with the normal anatomy inner ear in order to evaluate whether the cavity is representing both the cochlear and the vestibular parts of the inner ear and to revisit CC deformity from a three-dimensional (3D) perspective.
High-resolution computed tomography image datasets of 17 temporal bones initially identified as CC were evaluated with 3D reconstruction and multiplanar image analysis using a free available software for 3D segmentation of the inner ear. All 3D images of CC were compared to a normal inner ear. Maximum and minimum diameter of the CC were correlated with the circumference of the CC in an axial plane.
In 13 cases (76%), CC represented only the vestibular part of the inner ear and did not represent CC as defined here and by Sennaroglu, Kontorinis, and Khan. True CC was correctly diagnosed in only one case (6%). In three cases (18%), a rudimentary part of the cochlear portion could be identified. The axes' length of the elliptical cavity showed a strong positive linear relation to the circumference of the cavity (long axis: r = 0.94; P < .0001; short axis: r = 0.68; P = .0029).
This study supports the assumption that many reported CC cases only represent the vestibular part of the inner ear and are therefore cases of cochlear aplasia. 3D segmentation and systematic analysis of CT-imaging add clinical value to the comprehension of the morphology of the anatomical structures of the inner ear.
2C Laryngoscope, 131:386-391, 2021.
本研究旨在比较普通腔（CC）与正常内耳解剖结构，以评估腔是否代表内耳的耳蜗和前庭部分，并从三维（3D）角度重新审视 CC 畸形。
使用免费的内耳 3D 分割软件，对最初被确定为 CC 的 17 个颞骨的高分辨率计算机断层扫描（CT）图像数据集进行 3D 重建和多平面图像分析。将所有 CC 的 3D 图像与正常内耳进行比较。CC 的最大和最小直径与轴位 CC 周长相关。
在 13 例（76%）中，CC 仅代表内耳的前庭部分，不符合 Sennaroglu、Kontorinis 和 Khan 定义的 CC 以及这里定义的 CC。仅在 1 例（6%）中正确诊断出真正的 CC。在 3 例（18%）中，可以识别出耳蜗部分的原始部分。椭圆形腔的轴长与腔的周长呈强正线性关系（长轴：r = 0.94；P < 0.0001；短轴：r = 0.68；P = 0.0029）。
本研究支持这样的假设，即许多报道的 CC 病例仅代表内耳的前庭部分，因此是耳蜗发育不全的病例。CT 成像的 3D 分割和系统分析对内耳解剖结构形态的理解增加了临床价值。
2C 喉镜，131：386-391，2021 年。
