Control study of high-frequency ultrasound and three-dimensional computed tomography in diagnosis of developmental dysplasia of the hip in infant / 中国医学影像技术

ABSTRACT

Objective To observe the feasibility and value of ultrasound in diagnosis of developmental dysplasia of the hip (DDH) in infant. Methods A total of 84 hips of 42 infants aged 6 to 36 months who were suspected of DDH were included in this study. All patients were examined by ultrasonography with the Graf's method, and were scaned by three-dimensional computed tomography (3D CT). The results of ultrasounogrphy were compared with that of 3D CT, and the availability of ultrasound in diagnosing DDH in infant was evaluated. Results Twenty-eight normal hips, 12 dysplasia hips, 15 subdislocation hips and 29 dislocation hips were diagnosed in the 84 hips. The accuracy of ultrasound in diagnosis of DDH was 97.62%. Conclusion High-frequency ultrasound scan is a valuable method in diagnosing the DDH in infants, and can be used as a routine diagnostic method.