PMC8121595_01
Major structure of URT.
CMMM2021-6683828.001.jpg
PMC8121595_01_CMMM2021-6683828.001.jpg
fig1
The major structure of human URT can be seen in Figure 1.
Four URT models: (a1, a2) subject 1 before surgery, (b1, b2) subject 1 after surgery, (c1, c2) subject 2 before surgery, and (d1, d2) subject 2 after surgery. Section A is the minimal cross section, and section B is the cross section near the larynx. (a1-d1) Side view; (a2-d2) front view.
CMMM2021-6683828.002.jpg
PMC8121595_01_CMMM2021-6683828.002.jpg
fig2
Based on the CT scan images of two OSA subjects, 3D point cloud data of URT models are reconstructed via the image processing software Mimics 17.0.  Figure 2 exhibits the side view and front view of four 3D anatomically accurate URT models, where (a1, a2) and (b1, b2) denote the models of subject 1 before and after surgery and (c1, c2) and (d1, d2) indicate the models of subject 2 before and after surgery.