Table 2.
Muscle | Number scored | Percentage affected | Mean fat infiltration score | Percent asymmetric |
---|---|---|---|---|
Pectoralis Major | 26 | 53.8% | 1.92 | 15.4% |
Teres Major | 26 | 50.0% | 1.96 | 23.1% |
Triceps, Long head | 12 | 33.3% | 1.25 | 16.7% |
Biceps, Short head | 18 | 33.3% | 1.33 | 11.1% |
Pectoralis Minor | 26 | 30.8% | 1.23 | 15.4% |
Biceps, Long head | 20 | 30.0% | 1.20 | 10.0% |
Deltoid Middle | 20 | 20.0% | 0.40 | 0.0% |
Brachialis | 10 | 20.0% | 0.60 | 20.0% |
Deltoid Posterior | 18 | 16.7% | 0.56 | 11.1% |
Deltoid, Anterior | 20 | 10.0% | 0.35 | 10.0% |
Coracobrachialis | 24 | 8.3% | 0.17 | 0.0% |
Supraspinatus | 10 | 0.0% | 0.00 | 0.0% |
Infraspinatus | 26 | 0.0% | 0.08 | 0.0% |
Subscapularis | 26 | 0.0% | 0.08 | 0.0% |
Teres Minor | 26 | 0.0% | 0.04 | 7.7% |
Table 2b. Frequency, severity, and asymmetry of lower extremity/hip girdle muscle involvement observed on T1-weighted WBMRI of 13 individuals with FSHD. | ||||
---|---|---|---|---|
Muscle | Number scored | Percentage affected | Mean fat infiltration score | Percent asymmetric |
Semimembranosus | 26 | 92.3% | 4.04 | 38.5% |
Adductor longus | 26 | 73.1% | 2.96 | 46.2% |
Gluteus Minimus | 26 | 69.2% | 2.42 | 7.7% |
Tensor fascia lata | 26 | 65.4% | 2.31 | 23.1% |
Biceps femoris, long head | 26 | 61.5% | 2.08 | 38.5% |
Biceps femoris, short head | 26 | 61.5% | 2.62 | 38.5% |
Semitendinosis | 26 | 57.7% | 2.00 | 53.8% |
Gluteus Medius | 26 | 53.8% | 1.77 | 15.4% |
Rectus femoris | 26 | 53.8% | 2.23 | 61.5% |
Vastus medialis | 26 | 50.0% | 1.54 | 38.5% |
Gracilis | 26 | 50.0% | 1.58 | 23.1% |
Adductor magnus | 26 | 50.0% | 1.85 | 30.8% |
Extensor digitorum longus | 10 | 50.0% | 2.00 | 60.0% |
Adductor brevis | 26 | 46.2% | 1.77 | 46.2% |
Sartorius | 26 | 38.5% | 1.23 | 30.8% |
Tibialis anterior | 22 | 36.4% | 1.45 | 45.5% |
Medial gastrocnemius | 22 | 27.3% | 1.23 | 18.2% |
Peroneus longus | 8 | 25.0% | 1.38 | 25.0% |
Piriformis | 26 | 23.1% | 0.85 | 38.5% |
Vastus intermedius | 26 | 23.1% | 0.92 | 23.1% |
Vastus lateralis | 26 | 19.2% | 0.77 | 15.4% |
Gluteus Maximus | 26 | 15.4% | 0.81 | 7.7% |
Lateral gastrocnemius | 22 | 13.6% | 0.82 | 9.1% |
Iliopsoas | 26 | 7.7% | 0.35 | 15.4% |
Pectineus | 26 | 7.7% | 0.27 | 15.4% |
Psoas major | 26 | 3.8% | 0.27 | 15.4% |
Quadratus femoris | 26 | 3.8% | 0.27 | 7.7% |
Iliacus | 26 | 0.0% | 0.00 | 0.0% |
Obturator internus | 26 | 0.0% | 0.04 | 7.7% |
Obturator externus | 26 | 0.0% | 0.04 | 7.7% |
Tibialis posterior | 10 | 0.0% | 0.40 | 0.0% |
Popliteus | 14 | 0.0% | 0.29 | 0.0% |
Soleus | 6 | 0.0% | 0.33 | 0.0% |
Table 2c. Frequency, severity, and asymmetry of axial muscle involvement observed on T1-weighted WBMRI of 13 individuals with FSHD. | ||||
---|---|---|---|---|
Muscle | Number scored | Percentage affected | Mean fat infiltration score | Percent asymmetric |
Lower rectus abdominus | 22 | 81.8% | 3.64 | 0.0% |
Lumbar medial erector spinae | 26 | 80.8% | 2.38 | 7.7% |
Latissimus dorsi | 24 | 79.2% | 3.08 | 16.7% |
Serratus anterior | 24 | 79.2% | 3.04 | 33.3% |
Lumbar lateral erector spinae | 26 | 73.1% | 2.46 | 7.7% |
Upper rectus abdominus | 22 | 72.7% | 2.82 | 9.1% |
Thoracic medial erector spinae | 26 | 69.2% | 2.08 | 0.0% |
Thoracic lateral erector spinae | 26 | 69.2% | 2.54 | 7.7% |
Trapezius | 16 | 50.0% | 2.38 | 0.0% |
Rhomboid | 20 | 40.0% | 1.80 | 20.0% |
Quadratus lumborum | 26 | 30.8% | 1.23 | 0.0% |