We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Assessment of Calcaneal Spongy Bone Magnetic Resonance Characteristics in Women: A Comparison between Measures Obtained at 0.3 T, 1.5 T, and 3.0 T.
- Authors
Capuani, Silvia; Maiuro, Alessandra; Giampà, Emiliano; Montuori, Marco; Varrucciu, Viviana; Hagberg, Gisela E.; Vinicola, Vincenzo; Colonna, Sergio
- Abstract
Background: There is a growing interest in bone tissue MRI and an even greater interest in using low-cost MR scanners. However, the characteristics of bone MRI remain to be fully defined, especially at low field strength. This study aimed to characterize the signal-to-noise ratio (SNR), T2, and T2* in spongy bone at 0.3 T, 1.5 T, and 3.0 T. Furthermore, relaxation times were characterized as a function of bone-marrow lipid/water ratio content and trabecular bone density. Methods: Thirty-two women in total underwent an MR-imaging investigation of the calcaneus at 0.3 T, 1.5 T, and 3.0 T. MR-spectroscopy was performed at 3.0 T to assess the fat/water ratio. SNR, T2, and T2* were quantified in distinct calcaneal regions (ST, TC, and CC). ANOVA and Pearson correlation statistics were used. Results: SNR increase depends on the magnetic field strength, acquisition sequence, and calcaneal location. T2* was different at 3.0 T and 1.5 T in ST, TC, and CC. Relaxation times decrease as much as the magnetic field strength increases. The significant linear correlation between relaxation times and fat/water found in healthy young is lost in osteoporotic subjects. Conclusion: The results have implications for the possible use of relaxation vs. lipid/water marrow content for bone quality assessment and the development of quantitative MRI diagnostics at low field strength.
- Subjects
CANCELLOUS bone; MAGNETIC resonance; MAGNETIC flux density; PEARSON correlation (Statistics); HEEL bone; BONE density
- Publication
Diagnostics (2075-4418), 2024, Vol 14, Issue 10, p1050
- ISSN
2075-4418
- Publication type
Article
- DOI
10.3390/diagnostics14101050