Research Progress in Quantitative Evaluation of Osteoporosis by Magnetic Resonance Imaging
Osteoporosis is a major risk factor for fracture.In addition to bone mineralization,changes in bone microstructure and bone microenvironment are also important for bone integrity.The signal intensity ratio measured by conventional MRI can be used for the screening of osteoporosis in patients undergoing spinal surgery.Ultrashort echo time MRI can be used to quantitatively evaluate bone porosity,collagen matrix,and mineralization grade of bone,and water-lipid separation technology can be used to measure bone marrow fat content,composition,and T2*value.lntravoxel incoherent motion imaging reflects bone marrow perfusion.Artificial intelligence techniques such as texture analysis and deep learning have further developed MRI techniques.This paper summarizes recent advances in the use of MRI methods to evaluate osteoporosis.
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