Journal ArticleDOI
Quantification of Muscle Fat in Patients with Low Back Pain: Comparison of Multi-Echo MR Imaging with Single-Voxel MR Spectroscopy
Michael A. Fischer,Daniel Nanz,Ann Shimakawa,Timo Schirmer,Roman Guggenberger,Avneesh Chhabra,John A. Carrino,Gustav Andreisek +7 more
TLDR
Large-volume image-based (dual-echo and multi-echo MR imaging) and spectroscopic fat-signal fractions agree well, thus allowing fast and accurate quantification of muscle fat content in patients with low back pain.Abstract:
Muscle fat fractions derived from multi-echo three-dimensional MR imaging closely match those from MR spectroscopy.read more
Citations
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Journal ArticleDOI
Sarcopenia: Current Concepts and Imaging Implications
TL;DR: Sarcopenia-defined as significant loss of muscle-is associated with cachexia and frailty, and imaging can play a role in the detection and quantification of muscle depletion.
Journal ArticleDOI
Fat infiltration of paraspinal muscles is associated with low back pain, disability, and structural abnormalities in community-based adults
Andrew J. Teichtahl,Andrew J. Teichtahl,Donna M. Urquhart,Yuanyuan Wang,Anita E. Wluka,Pushpika Namali Wijethilake,Richard O'Sullivan,Flavia M. Cicuttini +7 more
TL;DR: Although cause and effect cannot be determined from this cross-sectional study, longitudinal data will help to determine whether disabling low back pain and structural abnormalities of the spine are a cause or result of fat replacement of paraspinal muscles.
Journal ArticleDOI
Age- and Level-Dependence of Fatty Infiltration in Lumbar Paravertebral Muscles of Healthy Volunteers.
Rebecca J. Crawford,Rebecca J. Crawford,Lukas Filli,James M. Elliott,James M. Elliott,James M. Elliott,Daniel Nanz,Michael A. Fischer,Magda Marcon,Erika J. Ulbrich +9 more
TL;DR: Lumbar paravertebral muscle fat content increases with aging, independent of volume, in healthy volunteers 20–62 years of age.
Journal ArticleDOI
Are the size and composition of the paraspinal muscles associated with low back pain? A systematic review.
Tom A. Ranger,Flavia M. Cicuttini,Tue Secher Jensen,Waruna L. Peiris,Sultana Monira Hussain,Jessica Fairley,Donna M. Urquhart +6 more
TL;DR: Evidence that multifidus CSA was negatively associated with and predictive of LBP up to 12 months but conflicting evidence for an association between erector spinae, psoas, and quadratus lumborum CSA and LBP is found.
Journal ArticleDOI
The Association between Imaging Parameters of the Paraspinal Muscles, Spinal Degeneration, and Low Back Pain.
TL;DR: MR spectroscopy studies have corroborated that the lumbar multifidus in LBP subjects has a significantly higher fat content than asymptomatic controls, and there is a strong need for establishing uniform methods of evaluating normal parameters and degenerative changes of the paraspinal muscles.
References
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Journal ArticleDOI
Physical measurements as risk indicators for low-back trouble over a one-year period.
TL;DR: The main findings were that good isometric endurance of the back muscles may prevent first-time occurrence of LBT in men and that men with hypermobile backs are more liable to contract LBT.
Journal ArticleDOI
Multiecho water-fat separation and simultaneous R2* estimation with multifrequency fat spectrum modeling.
Huanzhou Yu,Ann Shimakawa,Charles A. McKenzie,Ethan K. Brodsky,Jean H. Brittain,Scott B. Reeder +5 more
TL;DR: A more accurate multifrequency model of fat is included in the iterative decomposition of water and fat with echo asymmetry and least‐squares estimation (IDEAL) water‐fat separation and simultaneous T 2* estimation techniques.
Journal ArticleDOI
Abdominal MR Imaging with a Volumetric Interpolated Breath-hold Examination
Neil M. Rofsky,Vivian S. Lee,Gerhard Laub,Michael A. Pollack,Glenn A. Krinsky,David Thomasson,M. M. Ambrosino,Jeffrey C. Weinreb +7 more
TL;DR: Fat-saturated volumetric interpolated breath-hold images have quality comparable to that of conventional fat-s saturated 2D GRE images.
Journal ArticleDOI
Lumbar Muscle Fatigue and Chronic Lower Back Pain
TL;DR: A Back Analysis System for objectively measuring local fatigue in the back extensor muscles is presented and the applicability of this technique as a treatment outcome measure and diagnostic screening method for lower back pain patients is discussed.
Journal ArticleDOI
Fat quantification with IDEAL gradient echo imaging: correction of bias from T(1) and noise.
TL;DR: Two approaches to reduce the effects of T1 are demonstrated: small flip angle (flip angle) and dual flip angle methods and two methods to reduce noise bias are shown to effectively minimize deviation of the measured fat‐fraction from its true value.