Figure 5. Representative images of pre- and post-isolation
electroanatomic maps collected with an ultra-high definition mapping
system and 64 electrode basket mapping catheter. Maps were collected by
a single operator during a 28mm FROZEN AF case and a FIT Extension arm
case where the 31mm configuration was used for all PVs. Fractional
antral was calculated based on
(PVpre-PVpost)/PVpre,
Voltage Bracket 0.1mV-0.5mV, scar defined as <0.1mV.