Table 3

Procedural Data

VariableConventional (n = 49)RT3DTEE (n = 20)p Value
Total procedural time (min)115.0 (85.0–133.0)73.0 (60.0–91.0)<0.001
Fluoroscopy time (min)19.3 (12.9–36.0)4.2 (3.1–8.4)<0.001
Fluoroscopy dose (cGy·cm2)3,520.7 (1,700.0–6,709.0)575.4 (438.5–1,299.4)<0.001
Number of RF applications12 (10–22)7 (6–10)0.007
Ablation time (min)11.7 (8.0–20.0)8.7 (6.5–14.6)0.145

Values are median (interquartile range).

RF = radiofrequency; RT3DTEE = real-time 3-dimensional transesophageal echocardiography.