PhD Scientific Days 2024

Poster Session T - Cardiovascular Medicine and Research 3.

Computational Fluid Dynamics Simulation of Surgically Reconstructed Paediatric Coarctation with the Help of 3D-printing

Előadó neve

Dr. Bottlik, Olívia

Neptun code

KGDPQO

Előadó munkahelye

Semmelweis University, Heart and Vascular Centre

Előadó telefonszáma

+36704263246

Előadó e-mail címe

olivia.bottlik@gmail.com

Az előadás címe

Computational Fluid Dynamics Simulation of Surgically Reconstructed Paediatric Coarctation with the Help of 3D-printing

Szerző(k) neve és munkahelye

Olívia Bottlik¹, Imre J. Barabás, MD, PhD¹

1: Semmelweis University, Cardiovascular Centre

Bemutatás módja

Poszter

Szekció

Poster Session T - Cardiovascular Medicine and Research 3.

Language of the presentation

English

Preferred session

Cardiovascular Medicine and Research

Összefoglaló szövege

Introduction: Aortic coarctation is a narrowing commonly affecting the descending segment of the aorta. To provide adequate pressure and flow, numerous surgical techniques were developed.

Aims: Our aim is to compare the flow dynamics of four surgical reconstruction types, using sewable 3D printed models.

Method: The aortic arches and thoracic aortas were reconstructed in 3D, using computed tomography angiography images of 5 children. The segmented models were 3D printed with an elastic, sewable resin. In each case, four aortas were printed for simulating four surgeries: resection with end-to-end anastomosis, extended resection with end-to-end anastomosis, patch-graft and subclavian flap aortoplasty. After molding the models, the silicon molds were 3D scanned and digitally reconstructed for computed fluid dynamics analysis. A normalized pressure curve between 60 and 110 mmHg was used for the simulations.

Results: Pressure drops through the aorta decreased significantly in each case after surgery (p<0.05, Student t-test). The greatest decline was in extended resection with end-to-end anastomosis (106±12 mmHg vs. 91±7 mmHg, p<0.05, Student t-test). Wall shear stress decreased in all cases, but only resection with end-to-end anastomosis showed significant changes (12.1±1.2 N/m2 vs. 8.3±0.8 N/m2, p<0.05, Student t-test).

Conclusion: 3D modeling can help patient-specific planning. Choosing the best technique increases the feasibility and clinical outcome of surgeries. Considering the anatomical variations, further research is required for understanding hemodynamics.

Funding: This study was supported by the Semmelweis Scientific and Innovation Fund Council at the Semmelweis University (STIA-KFI-2020).

University

Semmelweis University

Supervisor

István Hartyánszky, MD, PhD

Publication of my abstract

I do not give consent to the publication of my abstract on the website of the congress.

Kind

Szabad

Status

elfogadva

Accepted presentation method

poszter

Előadás fájl jóváhagyás

nem rendelkezett róla

Előadó

8009

Start

16:30

End

16:33