» Articles » PMID: 30569482

Diffusion Tensor Imaging and Diffusion Modeling: Application to Monitoring Changes in the Medial Gastrocnemius in Disuse Atrophy Induced by Unilateral Limb Suspension

Overview
Date 2018 Dec 21
PMID 30569482
Citations 13
Authors
Affiliations
Soon will be listed here.
Abstract

Background: Diffusion tensor imaging (DTI) assesses underlying tissue microstructure, and has been applied to studying skeletal muscle. Unloading of the lower leg causes decreases in muscle force, mass, and muscle protein synthesis as well as changes in muscle architecture.

Purpose: To monitor the change in DTI indices in the medial gastrocnemius (MG) after 4-week unilateral limb suspension (ULLS) and to explore the feasibility of extracting tissue microstructural parameters based on a two-compartment diffusion model.

Study Type: Prospective cohort study.

Subjects: Seven moderately active subjects (29.1 ± 5.7 years).

Field Strength/sequence: 3T, single-shot fat-suppressed echo planar spin echo sequence.

Assessment: Suspension-related changes in the DTI indices (eigenvalues: λ , λ , λ , fractional anisotropy; coefficient of planarity) were statistically analyzed. Changes in model-derived tissue parameters (muscle fiber circularity and diameter, intracellular volume fraction, and residence time) after suspension are qualitatively discussed.

Statistical Tests: Changes in the DTI indices of the MG between pre- and postsuspension were assessed using repeated-measures two-way analysis of variance (ANOVA).

Results: All the eigenvalues (λ : P = 0.025, λ : P = 0.035, λ : P = 0.049) as well as anisotropic diffusion coefficient (P = 0.029) were significantly smaller post-ULLS. Diffusion modeling revealed that fibers were more circular (circularity index increased from 0.55 to 0.95) with a smaller diameter (diameter decreased from 82-60 μm) postsuspension.

Data Conclusion: We have shown that DTI indices change with disuse and modeling can relate these voxel level changes to changes in the tissue microarchitecture.

Level Of Evidence: 2 Technical Efficacy: Stage 1 J. Magn. Reson. Imaging 2018.

Citing Articles

Magnetic Resonance Imaging Biomarkers of Muscle.

Sinha U, Sinha S Tomography. 2024; 10(9):1411-1438.

PMID: 39330752 PMC: 11436019. DOI: 10.3390/tomography10090106.


Impact of Deep Learning Denoising Algorithm on Diffusion Tensor Imaging of the Growth Plate on Different Spatial Resolutions.

Santos L, Hsu H, Nelson Jr R, Sullivan B, Shin J, Fung M Tomography. 2024; 10(4):504-519.

PMID: 38668397 PMC: 11054892. DOI: 10.3390/tomography10040039.


Compositional and Functional MRI of Skeletal Muscle: A Review.

Hooijmans M, Schlaffke L, Bolsterlee B, Schlaeger S, Marty B, Mazzoli V J Magn Reson Imaging. 2023; 60(3):860-877.

PMID: 37929681 PMC: 11070452. DOI: 10.1002/jmri.29091.


Impact of different ground-based microgravity models on human sensorimotor system.

Saveko A, Bekreneva M, Ponomarev I, Zelenskaya I, Riabova A, Shigueva T Front Physiol. 2023; 14:1085545.

PMID: 36875039 PMC: 9974674. DOI: 10.3389/fphys.2023.1085545.


Association of vastus lateralis diffusion properties with in vivo quadriceps contractile function in premenopausal women.

Carpenter R, Samaan M, Clasey J, Butterfield T, Gao F, Hardy P Scand J Med Sci Sports. 2022; 33(3):213-223.

PMID: 36337008 PMC: 9928607. DOI: 10.1111/sms.14266.


References
1.
Saab G, Thompson R, Marsh G . Multicomponent T2 relaxation of in vivo skeletal muscle. Magn Reson Med. 1999; 42(1):150-7. DOI: 10.1002/(sici)1522-2594(199907)42:1<150::aid-mrm20>3.0.co;2-5. View

2.
Riley D, Bain J, Thompson J, Fitts R, Widrick J, Trappe S . Decreased thin filament density and length in human atrophic soleus muscle fibers after spaceflight. J Appl Physiol (1985). 2000; 88(2):567-72. DOI: 10.1152/jappl.2000.88.2.567. View

3.
Behan W, Cossar D, Madden H, McKay I . Validation of a simple, rapid, and economical technique for distinguishing type 1 and 2 fibres in fixed and frozen skeletal muscle. J Clin Pathol. 2002; 55(5):375-80. PMC: 1769641. DOI: 10.1136/jcp.55.5.375. View

4.
Ohira Y, Yoshinaga T, Nomura T, Kawano F, Ishihara A, Nonaka I . Gravitational unloading effects on muscle fiber size, phenotype and myonuclear number. Adv Space Res. 2003; 30(4):777-81. DOI: 10.1016/s0273-1177(02)00395-2. View

5.
Rolland Y, Lauwers-Cances V, Cournot M, Nourhashemi F, Reynish W, Riviere D . Sarcopenia, calf circumference, and physical function of elderly women: a cross-sectional study. J Am Geriatr Soc. 2003; 51(8):1120-4. DOI: 10.1046/j.1532-5415.2003.51362.x. View