[Three-dimensional reconstructions with volume-rendering method of the arytenoid and cricoid cartilages by means of multidetector row CT].
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.
Takahashi
N
N
Department of Radiology, Niigata University Faculty of Medicine.
Okamoto
K
K
Sakai
K
K
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001193:Arytenoid Cartilage / Q000000981:diagnostic imaging*; D003413:Cricoid Cartilage / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D021621:Imaging, Three-Dimensional / Q000379:methods*; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed / Q000379:methods*