» Articles » PMID: 37213087

Multi-frame Biomechanical and Relaxometry Analysis During in Vivo Loading of the Human Knee by Spiral DualMRI and Compressed Sensing

Overview
Journal Magn Reson Med
Publisher Wiley
Specialty Radiology
Date 2023 May 22
PMID 37213087
Authors
Affiliations
Soon will be listed here.
Abstract

Purpose: Knee cartilage experiences repetitive loading during physical activities, which is altered during the pathogenesis of diseases like osteoarthritis. Analyzing the biomechanics during motion provides a clear understanding of the dynamics of cartilage deformation and may establish essential imaging biomarkers of early-stage disease. However, in vivo biomechanical analysis of cartilage during rapid motion is not well established.

Methods: We used spiral displacement encoding with stimulated echoes (DENSE) MRI on in vivo human tibiofemoral cartilage during cyclic varus loading (0.5 Hz) and used compressed sensing on the k-space data. The applied compressive load was set for each participant at 0.5 times body weight on the medial condyle. Relaxometry methods were measured on the cartilage before (T , T ) and after (T ) varus load.

Results: Displacement and strain maps showed a gradual shift of displacement and strain in time. Compressive strain was observed in the medial condyle cartilage and shear strain was roughly half of the compressive strain. Male participants had more displacement in the loading direction compared to females, and T values did not change after cyclic varus load. Compressed sensing reduced the scanning time up to 25% to 40% when comparing the displacement maps and substantially lowered the noise levels.

Conclusion: These results demonstrated the ease of which spiral DENSE MRI could be applied to clinical studies because of the shortened imaging time, while quantifying realistic cartilage deformations that occur through daily activities and that could serve as biomarkers of early osteoarthritis.

Citing Articles

Updates on Compositional MRI Mapping of the Cartilage: Emerging Techniques and Applications.

Zibetti M, Menon R, De Moura H, Zhang X, Kijowski R, Regatte R J Magn Reson Imaging. 2023; 58(1):44-60.

PMID: 37010113 PMC: 10323700. DOI: 10.1002/jmri.28689.

References
1.
Wilson R, Bowen L, Kim W, Cai L, Schneider S, Nauman E . In vivo intervertebral disc deformation: intratissue strain patterns within adjacent discs during flexion-extension. Sci Rep. 2021; 11(1):729. PMC: 7804136. DOI: 10.1038/s41598-020-77577-y. View

2.
Adams A, Viergever M, Luijten P, Zwanenburg J . Validating faster DENSE measurements of cardiac-induced brain tissue expansion as a potential tool for investigating cerebral microvascular pulsations. Neuroimage. 2019; 208:116466. DOI: 10.1016/j.neuroimage.2019.116466. View

3.
Chan D, Cai L, Butz K, Trippel S, Nauman E, Neu C . In vivo articular cartilage deformation: noninvasive quantification of intratissue strain during joint contact in the human knee. Sci Rep. 2016; 6:19220. PMC: 4707486. DOI: 10.1038/srep19220. View

4.
Fan Y, Li Z, Han S, Lv C, Zhang B . The influence of gait speed on the stability of walking among the elderly. Gait Posture. 2016; 47:31-6. DOI: 10.1016/j.gaitpost.2016.02.018. View

5.
Welvaert M, Rosseel Y . On the definition of signal-to-noise ratio and contrast-to-noise ratio for FMRI data. PLoS One. 2013; 8(11):e77089. PMC: 3819355. DOI: 10.1371/journal.pone.0077089. View