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. Author manuscript; available in PMC: 2022 Apr 23.
Published in final edited form as: J Magn Reson Imaging. 2021 Mar 19;54(4):1257–1265. doi: 10.1002/jmri.27608

TABLE 3.

Comparison of Device-Related Artifact on Late Gadolinium Enhancement (LGE) Sequences by Implantable Cardioverter-Defibrillator (ICD) Subtype

WB LGE DRA (%)
 Standard LGE DRA (%)
Median (IQR) N Median (IQR) N P-Value
TV-ICD 0 (0–7)a,c 48 18 (0–50)d,f 47 0.001
CRT-D 8 (0–23)b,c 48 16 (0–45)e,f 14 0.12
S-ICD 60 (15–71)a,b 17 67 (50–92)d,e 7 0.09

Device-related artifact (DRA; hyperenhancement or signal void) expressed as a percentage of short-axis slices affected by artifact out of the total number of short-axis slices.

TV-ICD = transvenous ICD; CRT-D = cardiac resynchronization therapy device; S-ICD = subcutaneous ICD; IQR = interquartile range; WB = wideband.

a

P-value for S-ICD versus TV-ICD for WB: P < 0.001.

b

P-value for S-ICD versus CRT-D for WB: P < 0.001.

c

P-value for TV-ICD versus CRT-D for WB: P = 0.050.

d

P-value for S-ICD versus TV-ICD for Standard LGE: P = 0.001.

e

P-value for S-ICD versus CRT-D for Standard LGE: P = 0.006.

f

P-value for TV-ICD versus CRT-D for Standard LGE: P = 1.00.