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Table 2 CMR wall motion pattern associations

From: Prediction of response to cardiac resynchronization therapy using left ventricular pacing lead position and cardiovascular magnetic resonance derived wall motion patterns: a prospective cohort study

  Type I Type II P value
N = 13 (39 %) N = 20 (61 %)
Etiology
NICM, n (%) 8 (62) 18 (90) 0.084
ICM, n (%) 5 (38) 2 (10)  
ECG
Favorablea, n (%) 2 (15) 11 (55) 0.032
Non-favorable, n (%) 11 (85) 9 (45)  
CMR    
Maximum wall delay (ms) 371 ± 117 471 ± 106 0.016
Late gadolinium enhancement
Scar, n (%) 6 (46) 2 (10) 0.035
No scar, n (%) 7 (54) 18 (90)  
Septal flash
Present, n (%) 7 (54) 20 (100) 0.002
Absent, n (%) 6 (46) 0 (0)  
CRT lead location
Lead concordant, n (%) 6 (46) 12 (60) 0.49
Lead remote, n (%) 7 (54) 8 (40)  
  1. aA favorable ECG pattern is indicated by the presence of a true left bundle branch block and a QRS duration > 150 ms
  2. Values are presented as n (%) or mean ± standard deviation. CMR = Cardiovascular Magnetic Resonance; CRT = Cardiac Resynchronization Therapy; ECG = Electrocardiogram; ICM = Ischemic Cardiomyopathy; NICM = Non-Ischemic Cardiomyopathy