scholarly journals The effect on precision and T1 bias comparing two flip angles when estimating muscle fat infiltration using fat‐referenced chemical shift‐encoded imaging

2021 ◽  
Author(s):  
Anette Karlsson ◽  
Anneli Peolsson ◽  
Thobias Romu ◽  
Olof Dahlqvist Leinhard ◽  
Anna‐Clara Spetz Holm ◽  
...  
Keyword(s):  
Chemical Shift ◽  
Fat Infiltration ◽  
Muscle Fat Infiltration

scholarly journals Correction to: Associations of thigh muscle fat infiltration with isometric strength measurements based on chemical shift encoding-based water-fat magnetic resonance imaging

2019 ◽  
Vol 3 (1) ◽  
Author(s):  
Stephanie Inhuber ◽  
Nico Sollmann ◽  
Sarah Schlaeger ◽  
Michael Dieckmeyer ◽  
Egon Burian ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Chemical Shift ◽  
Isometric Strength ◽  
Thigh Muscle ◽  
Resonance Imaging ◽  
Fat Infiltration ◽  
Muscle Fat Infiltration

After publication of this article [1], it is noticed it contained some errors in the Methods section.

scholarly journals Changes in Cross-sectional Areas of Posterior Extensor Muscles in Thoracic Spine: A 10-year Longitudinal MRI Study

2021 ◽  
Author(s):  
Hitoshi Umezawa ◽  
Kenshi Daimon ◽  
Hirokazu Fujiwara ◽  
Yuji Nishiwaki ◽  
Takehiro Michikawa ◽  
...  
Keyword(s):  
Cross Section ◽  
Disc Degeneration ◽  
Thoracic Spine ◽  
Erector Spinae ◽  
Related Factors ◽  
Cross Sectional ◽  
Fat Infiltration ◽  
Extensor Muscles ◽  
The Cross ◽  
Muscle Fat Infiltration

Abstract This study aimed to examine changes in the cross-sectional areas (CSAs) of posterior extensor muscles in the thoracic spine over 10 years and identify related factors. The subjects of this study were 85 volunteers (mean age: 44.8 ± 11.5) and the average follow-up period was about 10 years. The CSAs of the transversospinalis muscles, erector spinae muscles, and total CSAs of the extensor muscles from T1/2 to T11/12 were measured on MRI. The extent of muscle fat infiltration was assessed by the signal intensity (luminance) of the extensor muscles’ total cross section compared to a section of pure muscle. Associations of age, sex, body mass index, lifestyle, back pain, neck pain, neck stiffness, and intervertebral disc degeneration with the 10-year CSAs changes and muscle fat infiltration were examined by Poisson regression analysis. The mean CSAs of all index muscles increased significantly. Exercise habit was associated with increased CSAs of the erector spinae muscles and the total area of the extensor muscles. The cross-section mean luminance increased significantly from baseline, indicating a significant increase of fat infiltration in the posterior extensor muscles. Progression of disc degeneration was negatively associated with the increase of fat infiltration in the total extensor muscles.

Abstract P463: Objectively Measured Moderate-to-Vigorous Physical Activity is Associated With Decreased Myosteatosis in African Caribbean Adults

Circulation ◽  
2020 ◽  
Vol 141 (Suppl_1) ◽  
Author(s):  
Iva Miljkovic ◽  
Allison Kuipers ◽  
Ryan Cvejkus ◽  
Victor Wheeler ◽  
Joseph Zmuda
Keyword(s):  
Physical Activity ◽  
Skeletal Muscle ◽  
Sedentary Behavior ◽  
Metabolic Diseases ◽  
Vigorous Physical Activity ◽  
Middle Aged ◽  
Fat Infiltration ◽  
Muscle Attenuation ◽  
Muscle Fat Infiltration ◽  
Objectively Measured

Increased skeletal muscle fat infiltration (i.e. myosteatosis) is now recognized as a major risk factor for cardio-metabolic diseases. Therefore, a lifestyle modification that reduces myosteatosis would be of great public health importance. However, studies examining the association of relevant lifestyle factors with this ectopic fat depot are lacking, particularly in African ancestry populations who have a very high burden of cardio-metabolic diseases. The aim of this study was to examine the relation between objectively measured physical activity and sedentary behavior with computed tomography measured calf muscle attenuation among middle-aged and elderly African-Caribbeans from the population-based Tobago Health Study. Preliminary analyses were conducted among 134 women (mean age 59 yrs, mean BMI 31.6 kg/m 2 ) and 355 men (mean age 62 yrs, mean BMI 28 kg/m 2 ). Physical activity was measured using the SenseWear Pro armband worn for 4-7 days. We calculated the mean duration of waking time engaged in light physical activity (LPA), moderate to vigorous activity (MVPA), and sedentary behavior (SB) per day. Skeletal muscle attenuation (mg/cm 3 ) reflects the fat content of the muscle such that greater skeletal muscle fat infiltration is reflected by lower attenuation. Women spent less time in LPA (146 vs. 270 min/day) and MVPA (15 vs. 41 min/day), but more time in SB (789 vs. 647 min/day) than men (all p<0.0001) after adjustments for gender differences in age. Muscle attenuation was lower among women compared with men (70.5 vs. 72.7 mg/cm3; age and BMI adjusted p<0.0001). In both women and men, muscle attenuation was positively correlated with the LPA and MVPA, and inversely with time spent in SB (spearman correlation coefficients (r) ranged from 0.21 to 0.39, all p<0.006 adjusted for age). Upon additional adjustment for BMI, in both women and men, the association of muscle attenuation with MVPA remained significant (r=0.21 and r=0.18, respectively, both p<0.03), but there was no association with LPA. Percent time spent in SB was associated with muscle attenuation only among women after additional adjustment for BMI (women: -0.16, p=0.052), and we also found a significant sex interaction effect of SB on muscle attenuation (p=0.035). Our preliminary findings suggest that there is significant association between MVPA and myosteatosis among middle-aged and elderly African Caribbeans. However, SB may only be relevant for myosteatosis among women. Future analyses will be conducted in a larger sample from this cohort to confirm our findings and to test for independence from other potential confounding factors, such as diet, sleep patterns, adiposity distribution, and diabetes.

scholarly journals The relation between local and distal muscle fat infiltration in chronic whiplash using magnetic resonance imaging

PLoS ONE ◽  
2019 ◽  
Vol 14 (12) ◽  
pp. e0226037
Author(s):  
Anette Karlsson ◽  
Anneli Peolsson ◽  
James Elliott ◽  
Thobias Romu ◽  
Helena Ljunggren ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Resonance Imaging ◽  
Fat Infiltration ◽  
Distal Muscle ◽  
Muscle Fat Infiltration ◽  
Chronic Whiplash

Sarcopenic Obesity and Muscle Fat Infiltration Are Associated with Higher Mortality in Patients with Cirrhosis: Presidential Poster

2013 ◽  
Vol 108 ◽  
pp. S146
Author(s):  
Aldo Montano-Loza ◽  
Judith Meza-Junco ◽  
Carla Prado ◽  
Michael Sawyer ◽  
Mang Ma ◽  
...  
Keyword(s):  
Sarcopenic Obesity ◽  
Fat Infiltration ◽  
Muscle Fat Infiltration

scholarly journals Heterogeneity of muscle fat infiltration in children with spina bifida

2014 ◽  
Vol 35 (1) ◽  
pp. 215-222 ◽  
Author(s):  
Tishya A.L. Wren ◽  
Skorn Ponrartana ◽  
Alexander Van Speybroeck ◽  
Deirdre D. Ryan ◽  
Jonathan M. Chia ◽  
...  
Keyword(s):  
Spina Bifida ◽  
Fat Infiltration ◽  
Muscle Fat Infiltration

scholarly journals Greater Skeletal Muscle Fat Infiltration Is Associated With Higher All-Cause and Cardiovascular Mortality in Older Men

2015 ◽  
Vol 70 (9) ◽  
pp. 1133-1140 ◽  
Author(s):  
Iva Miljkovic ◽  
Allison L. Kuipers ◽  
Jane A. Cauley ◽  
Tanushree Prasad ◽  
Christine G. Lee ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Cardiovascular Mortality ◽  
Older Men ◽  
Fat Infiltration ◽  
Muscle Fat Infiltration
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