Estimation of Bone Mineral Density Using Medical Image Signal Without an External Phantom

摘要

The present invention includes the step of obtaining a bone mineral density (BMD) using an HU (Hounsfield unit) value or (b) HU (Hounsfield unit) value and a patient specific factor without an external phantom A method for measuring bone density is provided. Using the regression equation for conversion of HU to BMD of the present invention, it is possible to reliably calculate BMD values from CT images without external phantoms, thereby avoiding additional radiation dose due to QCT testing for BMD measurements. In addition, the model of the present invention can be used as a feasible tool for FEA-based osteoporosis research using generic CT images for large populations. In addition, the present invention can calculate the bone mineral density using a general medical image such as MRI or CT without an external phantom, using a calculation formula in each patient based on the above concept. In addition, the calculated bone density can be used to predict bone strength based on bone density, and can be used for patient-specific diagnosis or treatment.;