case_images: PMC7191439_01
case_images: PMC7191439_02
case_images: CT image and three-dimensional (3D) reconstruction: (a) the analysis of patient-specific CT image; (b) reconstruction of 3D tracheal geometry with main bronchi from original CT images.
case_images: BMRI2020-3509814.001.jpg
case_images: PMC7191439_02_BMRI2020-3509814.001.jpg
case_images: fig1
case_images: The accuracy of the reconstructed model was checked against the geometry with an exact measurement in original DICOM CT slice files.  Figure 1 depicts the geometry after surface smoothing with the trachea and main bronchi.
case_images: Two surgical schemes virtually designed by the approach of computer-aided design (CAD) for the patient-specific tracheal model with two segmental stenoses.
case_images: BMRI2020-3509814.002.jpg
case_images: PMC7191439_02_BMRI2020-3509814.002.jpg
case_images: fig2
case_images: In Figure 2, the two possible staged surgical schemes are described. We found that grid numbers of about 0.5 million in steady simulation created the most efficient mesh.  Figure 3 and Table 2 show the mesh information for each model used in the present study.
case_images: Mesh information of each model used in CFD simulation.
case_images: BMRI2020-3509814.003.jpg
case_images: PMC7191439_02_BMRI2020-3509814.003.jpg
case_images: fig3
case_images: A tetrahedral mesh covered the remainder of the domain.  Figure 3 provides detailed information of the mesh. We found that grid numbers of about 0.5 million in steady simulation created the most efficient mesh.  Figure 3 and Table 2 show the mesh information for each model used in the present study.