Department of Otolaryngology-Head and Neck Surgery, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, U.S.A.
Department of Otolaryngology-Head and Neck Surgery, Wake Forest Baptist Medical Center, Winston-Salem, North Carolina, U.S.A.
Laryngoscope. 2022 Nov;132(11):2148-2156. doi: 10.1002/lary.29979. Epub 2021 Dec 11.
OBJECTIVES/HYPOTHESIS: To establish the utility of anatomic optical coherence tomography (aOCT) in evaluating internal nasal valve (INV).
Anatomic specimen imaging study.
Fresh-harvested human specimen heads were evaluated using both computed tomography (CT) imaging as well as using aOCT. Scans were performed at three time points: 1) After septoplasty for cartilage harvest, 2) after placement of butterfly graft (BFG), and 3) after placement of bilateral spreader grafts (SG). Imaging data were then converted into 3D models of the nasal airway. CT- and aOCT-generated models were compared by both static volumetric analysis and computational fluid dynamics (CFD) to predict nasal resistance and pressure.
Scans using aOCT showed comparable results to CT in terms of volumetric parameters both before and after intervention. Analysis of aOCT data by CFD demonstrated decrease in pressure after SG or BFG intervention. No statistically significant difference was observed when comparing CT- and aOCT-generated calculations of pressure or resistance.
The INV can be imaged in a static fashion using aOCT technology. Advantages over traditional CT imaging include lack of exposure to radiation and rapid scan time. In addition, in-office use is possible as aOCT technology develops. Further investigation will be necessary to define the role of aOCT in the dynamic evaluation of this vital component of the nasal airway.
3 Laryngoscope, 132:2148-2156, 2022.
目的/假设：利用解剖光学相干断层扫描（aOCT）评估内鼻阀（INV）。
解剖标本成像研究。
对新鲜采集的人头标本分别进行计算机断层扫描（CT）成像和 aOCT 成像。在三个时间点进行扫描：1）鼻中隔成形术取软骨后，2）蝶形移植物（BFG）放置后，3）双侧撑开移植物（SG）放置后。然后将扫描数据转换为鼻气道的 3D 模型。通过静态体积分析和计算流体动力学（CFD）比较 CT 和 aOCT 生成的模型，以预测鼻阻力和压力。
aOCT 扫描在干预前后的体积参数方面与 CT 具有可比的结果。CFD 对 aOCT 数据分析表明，SG 或 BFG 干预后压力降低。当比较 CT 和 aOCT 生成的压力或阻力计算值时，未观察到统计学上的显著差异。
INV 可以使用 aOCT 技术以静态方式成像。与传统 CT 成像相比，其优点包括避免辐射暴露和快速扫描时间。此外，随着 aOCT 技术的发展，可在办公室中使用。需要进一步研究来确定 aOCT 在评估鼻气道这一重要组成部分的动态方面的作用。
3 Laryngoscope, 132:2148-2156, 2022.
