Students and trainees can handle accurate replicas of cardiac anatomy, deepening their understanding of anatomical complexity and structural relationships in a way textbook images cannot. The same models improve communication with patients, who often struggle to understand their own internal anatomy from scans alone— making explanations more concrete and supporting shared decision-making.
Challenges and limitations
Despite clear benefits, several obstacles limit widespread adoption. Producing accurate models requires precise image segmentation, advanced software, and specialist expertise. These steps are time-consuming and demand trained personnel, which can be hard to fit into routine clinical workflows. And while early studies show that 3D printing improves visualisation and planning, there is still limited high-level evidence— from large randomised trials or long-term studies— confirming that it consistently improves long-term outcomes such as reduced mortality or complications.
Future directions
Research continues to expand the technology’ s reach. Advances are underway— such as at the University of Minnesota— in printing functional, flexible models that mimic the mechanical behaviour of heart valves and vessels. These efforts aim to move beyond static replicas towards dynamic models that simulate physiological behaviour, help test the fit of cardiovascular implants, and eventually contribute to personalised implants or engineered cardiac tissue.
Conclusion
Three-dimensional printing holds significant promise for cardiology and surgical planning. By improving anatomical understanding, supporting detailed preoperative simulation, and enhancing education and patient communication, it is reshaping how clinicians approach complex cardiovascular conditions. Challenges remain, but ongoing research and innovation continue to expand the role of this transformative technology in personalised cardiovascular care.
References
01 Frontiers in Pediatrics( 2019). 3D-Printed Models for Surgical Planning in Complex Congenital Heart Diseases: A Systematic Review.
02 PubMed( 2024). Impact of 3D Printing on Cardiac Surgery in Congenital Heart Diseases: A Systematic Review and Meta-Analysis.
03 PubMed( 2018). Three-dimensional printing in congenital heart disease: A systematic review.
04 Wang, Y. et al.( 2020). 3D printing in adult cardiovascular surgery and interventions: a systematic review. Journal of Thoracic Disease.
05 EJCTS( 2017). Three-dimensional printed models for surgical planning of complex congenital heart defects: an international multicentre study.
06 Revista Española de Cardiología( 2017). Three-Dimensional Printed Cardiac Models.
07 MDPI Biomolecules( 2022). Three-Dimensional Virtual and Printed Prototypes in Complex Congenital and Pediatric Cardiac Surgery.
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