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Case Reports
. 2020 Jul;2(8):1137-1140.
doi: 10.1016/j.jaccas.2020.04.054.

Rapid Prototyping Flexible Aortic Models Aids Sizing of Valve Leaflets and Planning the Ozaki Repair

Andrew I U Shearn  1   2   3 , Maria Victoria Ordoñez  1   2   3 , Filippo Rapetto  1   2 , Massimo Caputo  1   2 , Giovanni Biglino  1   2   3   4
Affiliations
Case Reports

Rapid Prototyping Flexible Aortic Models Aids Sizing of Valve Leaflets and Planning the Ozaki Repair

Andrew I U Shearn et al. JACC Case Rep. 2020 Jul.

Abstract

Two patients with bicuspid aortic valve were selected for aortic valve repair using the Ozaki procedure. Patient-specific models of their aortic roots were generated based on computed tomography data and were 3-dimensional printed using a flexible resin. The models allowed sizing of the valve leaflets and practicing of leaflet suturing. (Level of Difficulty: Advanced.).

Keywords: 3D printing; 3D, 3 dimensional; AR, aortic regurgitation; BAV, bicuspid aortic valve; CT, computed tomography; Ozaki repair; Vmax, maximum velocity; aortic coarctation; bicuspid aortic valve; computed tomography; rapid prototyping; surgical planning; valve repair.

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Figures

None
Graphical abstract
Figure 1
Figure 1
Patient-Specific Models of the Aortic Roots Were Derived From Clinically Indicated Computed Tomography Datasets (A, B) Segmentation was carried out by using Materialise (Leuven, Belgium) Mimics software to select the area of interest (highlighted in red)—in this case, the aortic root. (C, D) Materialize 3-matic was used to reconstruct the aortic roots in 3 dimensions (3D) and produce an stereolithography file suitable for importing into the 3D printer software. (E, F) The aortic roots were then printed in a flexible resin. Images for Patients #1 and #2 displayed are in the top and bottom rows, respectively.
Figure 2
Figure 2
Examples of Using the Aortic Root Model Examples of using the model by (A) sizing using the Ozaki sizers and (B) practicing leaflet suturing.
See this image and copyright information in PMC

Comment in

References

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