Objective To achieve a result of a large tumor ablation volume with minimal thermal damage to the surrounding blood vessels by designing a few clinically-adjustable operating parameters in radiofrequency ablation (RFA) for liver tumors abutting complex vascular structures. Methods Response surface method (RSM) was employed to correlate the ablated tumor volume ([Formula: see text]) an... https://thebanyantreers.shop/product-category/vases/