Multielectrode Mapping Versus Point-by-Point Mapping for Catheter Ablation of Ventricular Tachycardia: A Systematic Review and Meta-Analysis.

Ventricular tachycardia (VT) substrate delineation is important for successful catheter ablation. Newer multielectrode mapping (MEM) technologies can construct higher density maps than can traditional point-by-point (PBP) mapping but are expensive and lack contact force–sensing capabilities.