Fig. 1. Measurement of hip joint cavity

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Fig. 1. Measurement of hip joint cavity Fig. 1. Measurement of hip joint cavity.On CTA of 50-year-old male with stage 1 idiopathic ACH, widest distance of anterior joint cavity was markedly shorter (3.16 mm) than that of posterior joint cavity (6.83 mm) on mid-oblique axial image (A), resulting in low AP filling ratio (0.46). In addition, widest distance of superior joint cavity was markedly shorter (3.18 mm) than that of inferior joint cavity (9.31 mm) on mid-coronal image (B), resulting in low SI filling ratio (0.34). ACH = adhesive capsulitis of the hip, AP = anterior-posterior, CTA = computed tomography arthrography, SI = superior-inferior Fig. 1. Measurement of hip joint cavity.On CTA of 50-year-old male with stage 1 idiopathic ACH, widest distance of anterior joint cavity was markedly shorter (3.16 mm) than that of posterior joint cavity (6.83 mm) on mid-oblique axial image (A), resulting in low AP filling ratio (0.46). In addition,… Korean J Radiol. 2019 Mar;20(3):479-486. https://doi.org/10.3348/kjr.2018.0566