Table 2.
Correlation of PDFF % MRI and muscle biopsy changes
| Muscles | Correlation coefficients | |||
|---|---|---|---|---|
| Biopsy fat fraction % | P‐value | Biopsy pathology grade | P‐value | |
| Semimembranosus PDFF % | 0.85 | <0.001 | 0.78 | <0.001 |
| Vastus lateralis PDFF % | 0.68 | 0.005 | 0.77 | <0.001 |
| Rectus femoris PDFF % | 0.17 | 0.530 | 0.18 | 0.516 |
Note: Spearman correlation coefficients are shown for the correlation between MRI measured PDFF of the respective muscles on the one hand and the fat fraction and Rochester University Histopathology Grade on muscle biopsy on the other hand. Significant P‐values are marked in bold.
Abbreviations: MRI, magnetic resonance imaging; PDFF, proton density fat fraction.