Vascular Heat-Sink Effect in Thermal Ablation

Thermal tumor therapies — radiofrequency ablation, microwave ablation, regional hyperthermia — deposit heat at a target and rely on it staying hot long enough to cause thermal damage. But large blood vessels running near the target act as a built-in cooling system: fast-flowing blood carries heat away far more efficiently than the surrounding tissue can conduct it, clamping nearby cells close to normal body temperature no matter how much power the applicator delivers. This simulator solves a simplified Pennes bioheat equation on a live tissue grid, rendered as a real-time 3D temperature terrain, so you can watch a vessel of adjustable position, diameter and flow strength carve a persistent cold streak through the heated zone and see exactly how much of the therapeutic target it costs.