Hamstring Muscle Injuries: MRI and Ultrasound for Diagnosis and Prognosis.

Hamstring injuries (HSI) are the most frequent muscle injuries in active individuals and professional athletes. Early and accurate diagnosis is key for planning a correct and individualised return to play (RTP). For that diagnosis imaging tests such as Magnetic Resonance Imaging (MRI) and ultrasound (US) are the most useful tests in the initial stages.