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. Author manuscript; available in PMC: 2018 May 2.
Published in final edited form as: J Neurol Sci. 2015 Aug 28;358(1-2):178–182. doi: 10.1016/j.jns.2015.08.1532

Figure 1. Ultrasound Images of Quadriceps in Three Children with SMA-1 Over Time.

Figure 1

Legend: Ultrasound cross sectional images of the quadriceps in three patients (Pt) with spinal muscular atrophy (SMA) type 1 shows muscle atrophy and worsening (increased) echointensity over time. Note the relatively normal muscle appearance of the youngest patient (#2, 1 month (m) old) at baseline (left panel) compared to the older patients. Bar = 1cm.