Cardiac Codex

Voltage Mapping

A Cardiac Rhythm Management term on the RCES exam blueprint, defined for cath lab and EP clinicians.

A 3D electroanatomical mapping technique correlating local electrogram amplitude with tissue health: dense scar shows voltage below 0.5 mV, border zones (0.5-1.5 mV) indicate fibrotic tissue that frequently harbors the slow-conducting channels responsible for macro-reentrant VT.

Domain: Cardiac Rhythm Management · Blueprint: RCES exam guide

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