Post by AENS Consulting

🫀 What if a surgeon's technique choice could be tested with simulation — before the patient is on the table? This published CFD study answers exactly that. The Problem Abdominal aortic aneurysm (AAA) is the 14th leading cause of death in the US. EVAR — inserting a stent graft to seal the weakened aorta — reduces mortality by 30%. But the configuration chosen has long-term consequences: thrombosis, graft migration, limb disconnection. Clinical intuition alone isn't enough. What Was Modeled Three patient-specific stent graft geometries analyzed using CFD — non-Newtonian pulsatile blood flow (Carreau model) over a full cardiac cycle: → SG1 — Bottom-up non-ballet (conventional) → SG2 — Top-down non-ballet → SG3 — Top-down ballet (crosslimb) Parameters: WSS, OSI (thrombosis risk), absolute helicity, pressure distribution, and displacement forces. What the Data Showed The ballet-type configuration stood out: → 95% higher helicity — superior flow mixing, lower clot risk → 23% lower OSI — reduced thrombosis potential → 21–38% higher wall shear stress But with a critical trade-off: → 40% higher displacement forces — long-term fatigue and migration concern Not a simple "winner." Quantitative intelligence surgeons can actually act on. This is what AENS does. Non-Newtonian & pulsatile hemodynamic CFD. Medical device simulation. Patient-specific geometry modeling. FSI analysis. Surrogate modeling. We don't just describe fluid dynamics — we inform decisions. 📩 Working at the intersection of complex flow physics and real consequences? Let's talk. 🌐 www.aensconsulting.com 📧 [email protected] #CFD #ComputationalFluidDynamics #BiomedicalEngineering #EVAR #AorticAneurysm #Hemodynamics #MedicalDevices #FluidStructureInteraction #NonNewtonianFlow #EngineeringSimulation #AENSConsulting #PatientSpecificModeling #VascularEngineering #DigitalTwin #CardiovascularEngineering #WallShearStress #SimulationDrivenDesign #HealthcareInnovation #ResearchSupport #CFDAnalysis