Related Experiment Video
Updated: Oct 5, 2026

Image Acquisition using Portable Sonography for Emergency Airway Management
Published on: September 28, 2022
[Three-dimensional reconstructions with volume-rendering method of the arytenoid and cricoid cartilages by means of
N Takahashi1, K Okamoto, K Sakai
1Department of Radiology, Niigata University Faculty of Medicine.
Abstract:
We created volume-rendering (VR) three-dimensional (3-D) images of the larynx using a multidetector row CT. The study included 17 examinations of 15 patients. After obtaining volume data of the larynx, VR 3-D images of airways and arytenoid and cricoid cartilages were reconstructed. The threshold of airways and calcification were set as -1025/-625 HU and 80/1560 HU, respectively. The base of the vocal processes of arytenoid cartilages and cricoarytenoid joints were demonstrated at rates of 70.6% and 53.4%, respectively. VR 3-D laryngeal images were more useful in assessing anatomy than the surface-rendering images previously reported.
Related Concept Videos
Imaging Studies III: Computed Tomography
Computed Tomography
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...

