scholarly journals Validity of Ultrasound Imaging Versus Magnetic Resonance Imaging for Measuring Anterior Thigh Muscle, Subcutaneous Fat, and Fascia Thickness

2019 ◽  
Vol 2 (3) ◽  
pp. 58 ◽  
Author(s):  
Mechelli ◽  
Arendt-Nielsen ◽  
Stokes ◽  
Agyapong-Badu
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Subcutaneous Fat ◽  
Thickness Measurement ◽  
Thigh Muscle ◽  
Poor Correlation ◽  
Resonance Imaging ◽  
Anterior Thigh ◽  
Mri Measurements ◽  
Contractile Tissue

The aim of the present study was to determine the validity of ultrasound (US) imaging versus magnetic resonance imaging (MRI) for measuring anterior thigh muscle, subcutaneous adipose tissue (SAT), and fascia thickness. Twenty healthy, moderately active participants (aged 49.1 ± 9.74 [36–64] years), underwent imaging of the anterior thigh, using ultrasound and MRI modalities on the same day. Images were analyzed offline to assess the level of agreement between US and MRI measurements. Pearson’s correlation coefficient showed an excellent relationship between US imaging and MRI for measuring muscle (r = 0.99, p < 0.01), SAT (r = 0.99, p < 0.01), and non-contractile tissue (SAT combined with perimuscular fascia) thickness (r = 0.99, p < 0.01). Perimuscular fascia thickness measurement showed a poor correlation between modalities (r = 0.39, p < 0.01). Intra-class correlation coefficients (ICC3,1) also showed excellent correlation of the measurements with ICC = 0.99 for muscle thickness, SAT, and non-contractile tissue, but not for perimuscular fascia, which showed poor agreement ICC = 0.36. Bland and Altman plots demonstrated excellent agreement between US imaging and MRI measurements. Criterion validity was demonstrated for US imaging against MRI, for measuring thickness of muscle and SAT, but not perimuscular fascia alone on the anterior thigh. The US imaging technique is therefore applicable for research and clinical purposes for muscle and SAT.

Subcutaneous fat mass in infancy and abdominal, pericardial and liver fat assessed by Magnetic Resonance Imaging at the age of 10 years

2018 ◽  
Vol 43 (2) ◽  
pp. 392-401
Author(s):  
Bernadeta Patro Golab ◽  
Ellis Voerman ◽  
Aad van der Lugt ◽  
Susana Santos ◽  
Vincent W. V. Jaddoe
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Fat Mass ◽  
Subcutaneous Fat ◽  
Liver Fat ◽  
Resonance Imaging

scholarly journals Cartilage thickness measurement in magnetic resonance imaging

1996 ◽  
Vol 4 (3) ◽  
pp. 181-186 ◽  
Author(s):  
Bernd Kladny ◽  
Hermann Bail ◽  
Bernd Swoboda ◽  
Heinz Schiwy-Bochat ◽  
Wolfgang F. Beyer ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Thickness Measurement ◽  
Cartilage Thickness ◽  
Resonance Imaging

A Comparison of the Nasal Cross-Sectional Areas and Volumes Obtained with Acoustic Rhinometry and Magnetic Resonance Imaging

1997 ◽  
Vol 117 (4) ◽  
pp. 349-354 ◽  
Author(s):  
Jacquelynne P. Corey ◽  
Anil Gungor ◽  
Robert Nelson ◽  
Jeff Fredberg ◽  
Vincent Lai
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Nasal Cavity ◽  
Acoustic Rhinometry ◽  
Resonance Imaging ◽  
Cross Sectional ◽  
Nasal Tip ◽  
Nasal Cycle ◽  
Volume Measurements ◽  
Mri Measurements

Acoustic rhinometry (AR) evaluates the geometry of the nasal cavity with acoustic reflections and provides information about nasal cross-sectional areas (CSA) and nasal volume within a given distance. The accuracy of the information obtained by AR was compared with that of magnetic resonance imaging (MRI) of the nasal cavity. Five healthy subjects were evaluated with AR and the MRI before and after the application of a long-acting nasal decongestant spray, to eliminate possible interference of the nasal cycle with both measurement techniques. The MRI images of 2 mm coronal sections of the nasal cavity were traced by three independent observers and the CSAs were calculated by computer-aided imaging digitization, to be compared with the calculated CSAs obtained with the AR at the corresponding distance from the nasal tip. Digitized data from the MRI images were also used to calculate the nasal volume within the first 6 cm from the nasal tip and compared with the AR volume measurements. The interobserver variation of digitized MRI data predecongestant and postdecongestant was not significant. The correlations of CSA and volume measurements between the AR and MRI were high (0.969) after the application of the decongestant. The correlation between the AR and MRI measurements before the decongestant was low (0.345). This may have been the result of interference of the nasal cycle during the long MRI measurements (1 hour) or other unknown factors. We conclude that AR measurements of nasal CSAs and volumes provide accurate information when compared with the MRI of the decongested nasal airway.

Anthropometric equations to estimate the thigh muscle cross-sectional area by magnetic resonance imaging in young men

2019 ◽  
Vol 34 (6) ◽  
pp. 418-421 ◽  
Author(s):  
M.A.S. Carneiro ◽  
L.C. Barcelos ◽  
P.R.P. Nunes ◽  
L.R.M.F. de Souza ◽  
E.P. de Oliveira ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Young Men ◽  
Cross Sectional Area ◽  
Thigh Muscle ◽  
Sectional Area ◽  
Resonance Imaging ◽  
Cross Sectional ◽  
Muscle Cross Sectional Area

scholarly journals Length-dependent changes of lower limb muscle morphology in Chronic Inflammatory Demyelinating Polyneuropathy assessed with magnetic resonance imaging

2021 ◽  
Author(s):  
Jacob Fanous ◽  
Alexander M. Zero ◽  
Kevin J. Gilmore ◽  
Timothy J. Doherty ◽  
Charles Rice
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Chronic Inflammatory Demyelinating Polyneuropathy ◽  
Demyelinating Polyneuropathy ◽  
Triceps Surae ◽  
Resonance Imaging ◽  
Muscle Morphology ◽  
Hamstring Muscles ◽  
Inflammatory Demyelinating Polyneuropathy ◽  
Contractile Tissue

The objective of the present study was to assess muscle quantity of the thigh and leg in patients with chronic inflammatory demyelinating polyneuropathy (CIDP) compared to age and sex matched controls in exploring length-dependent changes of innervated muscles. In five people with CIDP and seven controls, magnetic resonance imaging was used to assess muscle morphology of the four parts of the quadriceps and medial hamstring muscles. Findings were compared to the triceps surae from a subset of participants. The CIDP group had less contractile tissue in the quadriceps (11.5%, P<0.05), hamstrings (15.6%, P<0.05) and triceps surae (35.9%, P<0.05) compared to controls. Additionally, CIDP had less contractile tissue (18.7%) in the triceps surae compared to the hamstrings (P<0.05). Muscle quantity in the quadriceps and hamstrings in CIDP was less than controls, but differences were greater for the distal triceps surae. These findings support a length-dependent affect of CIDP on limb musculature composition.

scholarly journals Hepatic Steatosis in Patients With Single Ventricle and a Fontan Circulation

2021 ◽  
Author(s):  
David A. Katz ◽  
Daniel Peck ◽  
Adam M. Lubert ◽  
Mathias Possner ◽  
Faizeen Zafar ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Liver Disease ◽  
Magnetic Resonance ◽  
Hepatic Steatosis ◽  
Fontan Procedure ◽  
Subcutaneous Fat ◽  
Fontan Circulation ◽  
Liver Fat ◽  
Proton Density ◽  
Resonance Imaging

Background Hepatic steatosis, caused by nonalcoholic fatty liver disease, is a leading cause of chronic liver disease. The interplay between hepatic steatosis and the development of liver disease following the Fontan procedure is not well understood. This study examined the prevalence and associations of hepatic steatosis in patients with a Fontan circulation. Methods and Results This was a single‐center retrospective study of 95 patients with a Fontan circulation with liver magnetic resonance imaging performed between 2012 and 2019. The average age at magnetic resonance imaging was 21.5±8.5 years. The percent liver fat signal was determined using magnetic resonance chemical shift‐encoded proton density fat fraction imaging. Hepatic steatosis was defined as liver fat ≥5% and was present in 10.5% of the cohort. The presence of hepatic steatosis was associated with higher body mass index (29±4 versus 24±6 kg/m 2 , P =0.006), a higher frequency of obesity (50% versus 12%, P =0.015), lower high‐density lipoprotein cholesterol (35±9 versus 43±14 mg/dL, P =0.050), and greater subcutaneous fat thickness (2.6±0.7 versus 1.8±1.0 cm, P =0.043). There was no association between hepatic steatosis and cardiovascular imaging or hemodynamic variables from cardiac catheterization. Conclusions Risk factors for hepatic steatosis in patients with Fontan circulation include obesity and dyslipidemia, similar to what is seen in the general population. Fontan hemodynamics were not associated with hepatic steatosis.

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.

Sign in / Sign up

Export Citation Format

Share Document