Reliability of Shear Wave Elastography and Ultrasound Measurement in Children with Unilateral Spastic Cerebral Palsy

In clinical practice, few data exist on the feasibility of performing reliable shear wave elastography (SWE) and ultrasonography (US) measurements in spastic muscles children with cerebral palsy (CP). Ten unilateral CP took part SWE US assessment tibialis anterior medialis gastrocnemius during two sessions separated by a 1-wk interval. Intra- inter-investigator reliability modulus (µ) muscle thickness (MT) measurements, at neutral maximal dorsiflexion angles both legs, was assessed investigators different levels experience. Reliability coefficient variation (CV), standard error measurement intra-class correlation (ICC). µ insufficient, regardless angle position (CV >10% >20% for angles, respectively). The intra- MT good >10%, ICC >0.74) legs. must be performed using rigorous standardized protocol while should considered an important parameter to monitor change morphology.