. Author manuscript; available in PMC: 2019 Jan 1.

Published in final edited form as: AJR Am J Roentgenol. 2017 Oct 18;210(1):166–174. doi: 10.2214/AJR.17.18446

TABLE 2.

Bivariate Correlations (ρ) Between Quantitative Liver MRI Measurements and Liver Histopathologic Scores for Pediatric and Young Adult Patients With Nonalcoholic Fatty Liver Disease

Liver MRI Measurement	Volume (mL) (n = 69)	Stiffness (kPa) (n = 68)	Fat Fraction (%) (n = 55)

Steatosis (0–3)
ρ	0.42	−0.11	0.57
p	0.0004^a	0.36	< 0.0001^a
Lobular inflammation (0–3)
ρ	0.15	−0.0003	0.23
p	0.22	0.99	0.09
Portal inflammation (0–2)
ρ	0.25	0.09	0.21
p	0.04^a	0.48	0.13
Hepatocyte ballooning (0–2)
ρ	0.14	0.07	0.31
p	0.25	0.57	0.02^a
Fibrosis score (0–4)
ρ	0.37	0.22	0.27
p	0.002^a	0.08	0.046^a
Nonalcoholic fatty liver disease activity score (0–8)
ρ	0.35	−0.02	0.52
p	0.003^a	0.87	< 0.0001^a

Statistically significant.