Table 3.

CMR Values

	Cohort With CMR (n=166)	ICD‐per‐Guideline with CMR (n=134)	ICD‐Off‐Label With CMR (n=32)	P Value
End‐diastolic volume, mL	231±80	240±84	197±45	<0.01
End‐systolic volume, mL	147±73	157±76	104±35	<0.01
LVEF, %	39±12	36±22	48±8	<0.01
LVEF ≥50%, n (%)	31 (19)	17 (13)	14 (44)	<0.01
Any LGE present, n (%)	155 (93)	127 (95)	28 (88)	0.23
Presence ischemic LGE, n (%)	149 (90)	123 (92)	26 (81)	0.32
No. of segments with ischemic LGE, median n (IQR)	5 (3–7)	5 (3–7)	5 (3–6)	0.36*
No. transmural segments (LGE >50%), median n (IQR)	3 (1–5)	3 (1–5)	2 (0–4)	0.13*
No. subendocardial segments, median n (IQR)	1 (0‐3)	1 (0‐3)	1 (0‐4)	0.59*

Dichotomous variables compared using the chi‐square test or Fischer's exact test. Continuous variables compared using t‐tests unless otherwise indicated. *Tested using the Mann–Whitney U test. CMR indicates cardiac magnetic resonance; ICD, implantable cardioverter defibrillator; IQR, interquartile region; LGE, late gadolinium enhancement; and LVEF, left ventricular ejection fraction.