Bettman R H R, Van Olphen A F, Zonneveld F W, Huizing E H
Department of Otorhinolaryngology, University Medical Centre Utrecht, The Netherlands.
Acta Otolaryngol. 2004 Nov;124(9):1028-32. doi: 10.1080/00016480410018007.
To formulate and test a CT imaging protocol for preoperative scanning of the temporal bone in cochlear implant candidates.
A human head was scanned in three CT planes: axial, axiopetrosal and semilongitudinal. Multiplanar reformats (MPRs), based on axial slices, were created and compared with the corresponding images obtained by direct scanning in the respective planes. All scans were analyzed on a viewing workstation.
The axial plane image allowed for an overview of the temporal bone. The width of the facial recess and the cochlear nerve canal could be studied on combined axial and axiopetrosal images. Cochlear patency could be evaluated using combined axial and semilongitudinal images. Axiopetrosal and semilongitudinal MPRs were able to replace the images obtained by direct scanning in the respective planes.
The combination of the axial CT plane image and MPRs was found to be sufficient for preoperative analysis of the temporal bone morphology.
制定并测试一种用于人工耳蜗植入候选者颞骨术前扫描的CT成像方案。
对一个人头进行三个CT平面扫描：轴位、轴位-岩骨位和半矢状位。基于轴位切片创建多平面重组（MPR）图像，并与在相应平面直接扫描获得的对应图像进行比较。所有扫描图像均在观察工作站上进行分析。
轴位平面图像可提供颞骨的整体概况。结合轴位和轴位-岩骨位图像可研究面神经隐窝和蜗神经管的宽度。利用轴位和半矢状位联合图像可评估耳蜗通畅情况。轴位-岩骨位和半矢状位MPR能够替代在相应平面直接扫描获得的图像。
发现轴位CT平面图像与MPR相结合足以进行颞骨形态的术前分析。
