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Updated: Jul 10, 2026

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Three-Dimensional Printing of a Complex Aortic Anomaly
Published on: November 1, 2018
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Multimodality imaging and three-dimensional printed model in patients with left ventricular outflow tract obstruction
Yasuhiro Hamatani1,2, Isao Shiraishi3, Tatsuya Nishii4
1Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Osaka, Japan.
ESC Heart Failure
|December 12, 2019
Summary
Three-dimensional (3D) printing accurately models complex cardiac anatomy for patients with left ventricular outflow tract obstruction (LVOTO). This technology aids surgical planning and rehearsal, improving patient management.
Area of Science:
- Cardiovascular Surgery
- Medical Imaging
- Biomedical Engineering
Background:
- Surgical intervention is the gold standard for drug-refractory left ventricular outflow tract obstruction (LVOTO).
- Complex and heterogeneous cardiac anatomy presents challenges in surgical planning for LVOTO.
- Three-dimensional (3D) printing offers a novel approach to visualize intricate cardiac structures.
Observation:
- Two patients with LVOTO underwent creation of 3D printed cardiac models.
- The 3D printed models were compared with intraoperative findings.
- The models accurately reproduced complex anatomical features, including the interventricular septum, papillary muscles, and thickened chordae.
Findings:
- 3D printed models precisely replicated the complex cardiac anatomy in patients with LVOTO.
- The fidelity of the models was confirmed by comparing them to intraoperative observations.
- Key anatomical structures relevant to LVOTO surgical planning were accurately represented.
Implications:
- 3D printing facilitates preoperative understanding of complex 3D cardiac structures and spatial relationships.
- 3D models enable surgeons to perform virtual surgical rehearsals, optimizing operative strategy.
- This technology holds significant potential as a valuable tool for managing patients with LVOTO.

