Semin Musculoskelet Radiol 2024; 28(01): 062-077
DOI: 10.1055/s-0043-1776431

1   Department of Radiology, University of California, San Diego, La Jolla, California

,

Hyungseok Jang

1   Department of Radiology, University of California, San Diego, La Jolla, California

,

Eric Y. Chang

1   Department of Radiology, University of California, San Diego, La Jolla, California

2   Research Service, Veterans Affairs San Diego Healthcare System, San Diego, California

,

Susan Bukata

3   Department of Orthopaedic Surgery, University of California, San Diego, La Jolla, California

,

Jiang Du

1   Department of Radiology, University of California, San Diego, La Jolla, California

2   Research Service, Veterans Affairs San Diego Healthcare System, San Diego, California

4   Department of Bioengineering, University of California, San Diego, La Jolla, California

,

Christine B. Chung

1   Department of Radiology, University of California, San Diego, La Jolla, California

2   Research Service, Veterans Affairs San Diego Healthcare System, San Diego, California

› Author Affiliations Source of Funding The authors acknowledge grant support from the National Institutes of Health (K01AR080257, R01AR068987, R01AR062581, R01AR075825, R01AR078877, and 5P30AR073761) and Veterans Affairs Clinical Science and Rehabilitation R&D (I01CX001388, I01BX005952, and I01CX000625).
› Further Information Also available at    Buy Article Permissions and Reprints Abstract

Magnetic resonance imaging (MRI) is increasingly used to evaluate the microstructural and compositional properties of bone. MRI-based biomarkers can characterize all major compartments of bone: organic, water, fat, and mineral components. However, with a short apparent spin-spin relaxation time (T2*), bone is invisible to conventional MRI sequences that use long echo times. To address this shortcoming, ultrashort echo time MRI sequences have been developed to provide direct imaging of bone and establish a set of MRI-based biomarkers sensitive to the structural and compositional changes of bone. This review article describes the MRI-based bone biomarkers representing total water, pore water, bound water, fat fraction, macromolecular fraction in the organic matrix, and surrogates for mineral density. MRI-based morphological bone imaging techniques are also briefly described.

Keywords magnetic resonance imaging - cortical bone - trabecular bone - biomarkers - ultrashort echo time Publication History

Article published online:
08 February 2024

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