Table 7.
General radiological features evaluated by whole-body muscle magnetic resonance imaging in patients with inflammatory myopathy with mitochondrial pathology (IM-Mito) and inclusion body myositis (IBM).
| Radiological feature | IM-Mito, N = 14 a | IBM, N = 10 a | p value b |
|---|---|---|---|
| Muscular edema in at least one muscle | 12 (85.7%) | 10 (100.0%) | 0.493 |
| Asymmetry in radiological findings | 10 (71.4%) | 8 (80.0%) | 0.63 |
| Rectus femoris relatively spared compared to other quadriceps muscles | 13 (92.9%) | 8 (80.0%) | 0.550 |
| Flexor digitorum profundus abnormality | 9 (64.3%) | 10 (100.0%) | 0.053 |
| Flexor digitorum profundus more affected than finger extensors | 7 (50.0%) | 9 (90.0%) | 0.079 |
| Mean number of muscles with fatty infiltration per patient | 24.6 (17.7) | 37.9 (12.0) | 0.057 |
| Mean number of muscles with edema per patient | 11.3 (12.0) | 17.5 (7.9) | 0.120 |
a
Mean (standard deviation); n (%).
b
Wilcoxon’s rank sum test; chi-square; Fisher’s exact test.