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首页> 外文期刊>The anatomical record: advances in integrative anatomy and evolutionary biology >Variations in the Size and Shape of Human Cochlear Malformation Types
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Variations in the Size and Shape of Human Cochlear Malformation Types

机译：人耳蜗畸形类型尺寸和形状的变化

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ABSTRACT The objective of this study is to determine the variations in size and shape of the most widely recognized cochlear malformation types using three‐dimensional (3D) visualization. Using 3D slicer freeware, the complete inner‐ear structures were segmented from 46 anonymized high‐resolution computed tomography (HRCT) image datasets. Cochlear height, internal auditory canal height, and width were measured from the axial plane. Cochlear basal turn diameter was measured from the oblique coronal plane. Number of cochlear turns was measured from the 3D images and the corresponding cochlear duct length (CDL) was estimated using the CDL equations given in Alexiades et al. [Otol Neurotol 36 (2015) 904–907]. Out of 46 preoperative HRCT image datasets of human temporal bone, cochlear anatomy types including normal anatomy (4), enlarged vestibular aqueduct syndrome (3), cochlear aplasia (2), incomplete partition Types I (8), II (Mondini's deformity) (3), and III (X‐linked) (4), cochlear hypoplasia (CH) (17), and common cavity (CC) (5) were identified. Majority of CH cases had cochlear height shorter than 4 mm whereas the CC cases measured cochlear height above 6 mm. For all the other malformation types, cochlear height was between 4 and 6 mm. In terms of “A” value, majority of CH cases showed shorter “A” value of 7.5 mm, which is in the lower end in comparison to the rest of the malformation types reported in this study. 3D‐visualization shows the size and shape variations of all the structures of inner ear and also improves the clinicians' ability to visualize cochlear anatomy and nearby structures much easier than from the 2D image slices. Anat Rec, 302:1792–1799, 2019. ? 2019 The Author. The Anatomical Record published by Wiley Periodicals, Inc. on behalf of American Association for Anatomy
机译：摘要本研究的目的是使用三维（3D）可视化来确定最广泛认可的耳蜗畸形类型的大小和形状的变化。使用3D Slicer免费软件，从46个匿名的高分辨率计算断层扫描（HRCT）图像数据集进行了完整的内耳结构。从轴向平面测量耳蜗高度，内耳高度和宽度。从倾斜冠状平面测量耳蜗基匝直径。从3D图像测量耳蜗匝数，使用AlexiadEs等人的CDL方程估计相应的耳蜗管长度（CD1）。 [otol neurotol 36（2015）904-907]。在46个术前HRCT图像数据集的人颞骨，耳蜗解剖学类型，包括正常解剖学（4），扩大前庭嗜疗综合征（3），耳蜗Aplasia（2），不完全分区类型I（8），II（Mondini的畸形）（ 3），和III（X键）（4），核心复蛋白（CH）（17）和常见的腔（CC）（5）。大多数CH病例的耳蜗高度短于4毫米，而CC病例测量高于6毫米的耳蜗高度。对于所有其他畸形类型，耳蜗高度在4到6毫米之间。就“A”值而言，大多数CH病例显示出较短的“a”值，而＆ 7.5 mm，与本研究报告的其他畸形类型相比，这是下端。 3D-Visualization显示内耳所有结构的尺寸和形状变化，也提高了临床医生的可视化耳蜗解剖结构和附近结构的能力，比来自2D图像切片更容易。 ANAT REC，302：1792-1799，2019年。 2019年作者。由Wiley Hearyicals，Inc。发布的解剖记录代表美国解剖学协会

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