Figure 6

Hip anteroposterior radiography image (left), hip ultrasonography image of the same hip (middle), and the SSD model image output (right). The patient was a 1-month-old boy. IHDI grade 2, Graf type D. Anatomical interpretation of the ultrasonography image: 1, bony part of the femoral neck. 2, cartilaginous femoral head. 3, bony part of acetabular roof. 4, acetabular labrum. IDHI International Hip Dysplasia Institute, SSD Single shot multi-box detector.