PSI - Issue 49

Kevin Bates et al. / Procedia Structural Integrity 49 (2023) 23–29 Kevin Bates / Structural Integrity Procedia 00 (2023) 000 – 000

26 4

Garcia, AlOmran, et al. 2018), but its translucence when unmodified by VeroWhitePlus fibers was preferable for this application. 3. Results 3.1. SVASD 3D reconstruction Using semi-automatic segmentation in the ITK-SNAP environment, the main structure of the heart, including the four chambers, arteries and veins was reconstructed. Connective and septal tissue were segmented as a separate body to allow for the generation of thickness of the chambers and vessels. The reconstruction is shown in Figure 1. Following reconstruction, a uniform thickness was added to the hollow structures.

Figure 1. Segmented heart anatomy. In green are the chambers and vessels, in red is the septum and connective tissue.

To provide a useful tool for the clinical team, the solid model was sectioned at oblique angles to provide a visual representation of the defect and surrounding tissue. The view chosen for 3D printing is shown in Figure 2.

Figure 2. Sectioned heart model.