Assessment of porosity index of the femoral neck and tibia by 3D ultra‐short echo‐time MRI

Purpose To measure the porosity index (PI) by ultrashort echo‐time magnetic resonance imaging (UTE MRI) of the femoral neck and tibia; assess its correlations with age, gender, and body mass index (BMI); and analyze the PI correlations between both sites to assess whether tibial PI can reflect changes of femoral neck PI. Materials and Methods In all, 68 healthy men and women (mean age, 45.7 ± 15.9 years) underwent 3D UTE MRI (3.0T) of the hip...