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Table 1 Distribution of abnormal potential EGMS recorded in scar, gray zone and healthy regions

From: Distribution of abnormal potentials in chronic myocardial infarction using a real time magnetic resonance guided electrophysiology system

Animals N = 6

Sinus rhythm

Paced rhythm

Dense scar

Gray zone

Healthy myo

p-value

Dense scar

Gray zone

Healthy myo

p-value

Total EGMs recorded

758

147

1544

 

378

55

1043

 

Low voltage potentials

214 (28%)

38 (26%)

337 (22%)

p = 0.01

98 (26%)

2(4%)

208 (20%)

p = 0.01

Abnormal potentials

183 (24%)

39 (27%)

336 (22%)

p = 0.3

113 (30%)

23(42%)

224 (21%)

p = 0.001

  1. Values in parentheses indicate fraction of low voltage or abnormal potentials as a percentage of total EGMs in scar, gray zone or myocardium. EGMs are shown in rhythm and vs. paced rhythm. p-values are calculated as the difference between the tissue groups.