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Table 1 Evaluated quality criteria and the overall evaluability of all images

From: Ultrasound of the infant hip: manual fixation is equivalent to Graf’s technique regarding image quality—a randomized trial

Quality criteria All images Fixation device Evaluable No fixation device Evaluable Fixation device Not evaluable No fixation device Not evaluable Total no. of evaluated images
Landmark 1 118 (96.7%) 107 (99.1%) 4 (3.3%) 1 (0.9%) 230
Landmark 2 108 (88.5%) 96 (88.9%) 14 (11.5%) 12 (11.1%) 230
Landmark 3 118 (96.7%) 107 (99.1%) 4 (3.3%) 1 (0.9%) 230
Chondroosseous border 122 108 0 0 230
Femoral head 122 108 0 0 230
Synovial fold 122 108 0 0 230
Joint capsule 122 108 0 0 230
Concavity-convexity 122 108 0 0 230
Bony roof line 118 (96.7%) 107 (99.1%) 4 (3.3%) 1 (0.9%) 230
Base line 109 (89.3%) 96 (88.9%) 13 (10.7%) 12 (11.1%) 230
Cartilaginous roof line 122 108 0 0 230
Overall evaluability 120 (98.4%) 105 (97.2%) 2 (1.6%) 3 (2.8%) 230