Table 4.
Presence of muscle fatty infiltration evaluated by whole-body muscle magnetic resonance imaging in patients with inflammatory myopathy with mitochondrial pathology (IM-Mito) and inclusion body myositis (IBM).
| Muscle | IM-Mito, N = 14 a | IBM, N = 10 a | p value b |
|---|---|---|---|
| Vastus lateralis | 14 (100%) | 10 (100%) | 1,0 |
| Vastus medialis | 11 (78,5%) | 8 (80%) | 0,93 |
| Vastus intermedius | 9 (64,2%) | 8 (80%) | 0,40 |
| Rectus femoris | 5 (35,7%) | 6 (60%) | 0,23 |
| Biceps femoris | 5 (35,7%) | 8 (80%) | 0,03 |
| Semimembranosus | 9 (64,2%) | 10 (100%) | 0,03 |
| Semitendinosus | 6 (42,8%) | 8 (80%) | 0,06 |
| Gracilis | 4 (28,5%) | 8 (80%) | 0,03 |
| Sartorius | 6 (42,8%) | 7 (70%) | 0,18 |
| Tensor fascia lata | 6 (42,8%) | 9 (90%) | 0,01 |
| Adductor | 6 (42,8%) | 8 (80%) | 0,06 |
| Iliopsoas | 2 (14,2%) | 1 (10%) | 1,0 |
| Gluteus maximus | 2 (14,2%) | 3 (30%) | 0,61 |
| Gluteus medius | 4 (28,5%) | 2 (20%) | 1,0 |
| Gluteus minimus | 8 (57,1%) | 10 (100%) | 0,16 |
| Medial gastrocnemius | 12 (85,7%) | 10 (100%) | 0,21 |
| Lateral gastrocnemius | 5 (37,5%) | 8 (80%) | 0,03 |
| Soleus | 8 (57,1%) | 9 (90%) | 0,08 |
| Tibialis anterior | 6 (42,8%) | 7 (70%) | 0,18 |
| Tibialis posterior | 6 (42,8%) | 5 (50%) | 0,72 |
| Extensor digitorum longus | 4 (28,5%) | 6 (60%) | 0,21 |
| Fibularis | 6 (42,8%) | 7 (70%) | 0,18 |
| Biceps brachii | 5 (37,5%) | 5 (50%) | 0,48 |
| Triceps | 3 (21,4%) | 3 (30%) | 0,66 |
| Deltoid | 3 (21,4%) | 3 (30%) | 0,66 |
| Flexor carpi ulnaris | 0 (0%) | 0 (0%) | 1,0 |
| Flexor carpi radialis | 0 (0%) | 0 (0%) | 1,0 |
| Finger flexors (flexor digitorum profundus) | 9 (64,2%) | 9 (90%) | 0,15 |
| Brachioradialis | 0 (0%) | 0 (0%) | 1,0 |
| Carpal extensors | 0 (0%) | 0 (0%) | 1,0 |
| Common extensor of the fingers | 2 (14,2%) | 4 (40%) | 0,19 |
| Supinator and pronator quadratus | 1 (7,1%) | 1 (10%) | 1,0 |
a
n (%).
b
Chi-square; Fisher’s exact test.