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. 2018 May 3;144(6):513–518. doi: 10.1001/jamaoto.2018.0347

Figure 2. Calvarial and Zygoma Measurements in Non-OSA, OSA, and sCSF-L Patients.

Figure 2.

Abbreviations: NS, not significant; OSA obstructive sleep apnea; sCSF, spontaneous cerebrospinal fluid leak. A, Measurements were taken in the coronal plane of a 15-mm (height) segment of the thinnest portion of the squamous temporal bone. Segments were highlighted bilaterally, starting at the level of the foramen rotundum anteriorly and extending posteriorly to the level of the upper extent of the superior semicircular canal. Volume was calculated using 3D Slicer’s volumetric analysis tool (version 4.6.2, http://www.slicer.org). B, A 3-Dimensional reconstruction illustrating the highlighted calvarial segment. C, Patients with OSA and patients with sCSF-L had statistically significantly thinner skulls than patients without OSA. Skull thickness was not statistically significantly different between patients with OSA and those with sCSF-L. D, There were no statistically significant differences in zygoma thickness between non-OSA, OSA, and sCSF-L patients. Dashed line indicates that patients with sCSF-L were not part of the original database search.