Vascular 3D Printing with a Novel Biological Tissue Mimicking Resin for Patient-Specific Procedure Simulations in Interventional Radiology: a Feasibility Study

Three-dimensional (3D) printing of vascular structures is of special interest for procedure simulations in Interventional Radiology, but remains due to the complexity of the vascular system and the lack of biological tissue mimicking 3D printing materials a technical challenge. In this study, the te...

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Bibliographic Details
Published in:Journal of digital imaging 2022-02, Vol.35 (1), p.9-20
Main Authors: Kaufmann, R., Zech, C. J., Takes, M., Brantner, P., Thieringer, F., Deutschmann, M., Hergan, K., Scharinger, B., Hecht, S., Rezar, R., Wernly, B., Meissnitzer, M.
Format: Article
Language:English
Subjects:
3-D printers
Cardiovascular system
Computed tomography
Diameters
Embolization
Feasibility Studies
Humans
Imaging
Medicine
Medicine & Public Health
Mimicry
Printing
Printing, Three-Dimensional
Radiology
Radiology, Interventional
Silicone resins
Silicones
Simulation
Technology assessment
Three dimensional printing
Tissues
Tomography, X-Ray Computed
Vascular system
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Summary:Three-dimensional (3D) printing of vascular structures is of special interest for procedure simulations in Interventional Radiology, but remains due to the complexity of the vascular system and the lack of biological tissue mimicking 3D printing materials a technical challenge. In this study, the technical feasibility, accuracy, and usability of a recently introduced silicone-like resin were evaluated for endovascular procedure simulations and technically compared to a commonly used standard clear resin. Fifty-four vascular models based on twenty-seven consecutive embolization cases were fabricated from preinterventional CT scans and each model was checked for printing success and accuracy by CT-scanning and digital comparison to its original CT data. Median deltas (Δ) of luminal diameters were 0.35 mm for clear and 0.32 mm for flexible resin (216 measurements in total) with no significant differences ( p  > 0.05). Printing success was 85.2% for standard clear and 81.5% for the novel flexible resin. In conclusion, vascular 3D printing with silicone-like flexible resin was technically feasible and highly accurate. This is the first and largest consecutive case series of 3D-printed embolizations with a novel biological tissue mimicking material and is a promising next step in patient-specific procedure simulations in Interventional Radiology.
ISSN:0897-1889
1618-727X
DOI:10.1007/s10278-021-00553-z