Assessment of Gluteus Maximus Muscle Area With Different Image Analysis Programs

Wu, Gary A.; Bogie, Kath M.

doi:10.1016/j.apmr.2008.12.009

Cited by 6 publications

(7 citation statements)

References 11 publications

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“…Software programmes for various body composition measurements on CT images, such as adipose tissue surface area, skeletal muscle tissue surface area, and liver volumetric measurements, have been compared in multiple previous studies, demonstrating high levels of agreement . Excellent agreement levels between sliceOmatic and ImageJ, as well as between observers using sliceOmatic for CSMA measurements have previously been reported.…”

Section: Discussionmentioning

confidence: 96%

A comparative study of software programmes for cross‐sectional skeletal muscle and adipose tissue measurements on abdominal computed tomography scans of rectal cancer patients

Vugt

Levolger

Gharbharan

et al. 2016

J cachexia sarcopenia muscle

183

138

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BackgroundThe association between body composition (e.g. sarcopenia or visceral obesity) and treatment outcomes, such as survival, using single‐slice computed tomography (CT)‐based measurements has recently been studied in various patient groups. These studies have been conducted with different software programmes, each with their specific characteristics, of which the inter‐observer, intra‐observer, and inter‐software correlation are unknown. Therefore, a comparative study was performed.MethodsFifty abdominal CT scans were randomly selected from 50 different patients and independently assessed by two observers. Cross‐sectional muscle area (CSMA, i.e. rectus abdominis, oblique and transverse abdominal muscles, paraspinal muscles, and the psoas muscle), visceral adipose tissue area (VAT), and subcutaneous adipose tissue area (SAT) were segmented by using standard Hounsfield unit ranges and computed for regions of interest. The inter‐software, intra‐observer, and inter‐observer agreement for CSMA, VAT, and SAT measurements using FatSeg, OsiriX, ImageJ, and sliceOmatic were calculated using intra‐class correlation coefficients (ICCs) and Bland–Altman analyses. Cohen's κ was calculated for the agreement of sarcopenia and visceral obesity assessment. The Jaccard similarity coefficient was used to compare the similarity and diversity of measurements.ResultsBland–Altman analyses and ICC indicated that the CSMA, VAT, and SAT measurements between the different software programmes were highly comparable (ICC 0.979–1.000, P < 0.001). All programmes adequately distinguished between the presence or absence of sarcopenia (κ = 0.88–0.96 for one observer and all κ = 1.00 for all comparisons of the other observer) and visceral obesity (all κ = 1.00). Furthermore, excellent intra‐observer (ICC 0.999–1.000, P < 0.001) and inter‐observer (ICC 0.998–0.999, P < 0.001) agreement for all software programmes were found. Accordingly, excellent Jaccard similarity coefficients were found for all comparisons (mean ≥ 0.964).ConclusionsFatSeg, OsiriX, ImageJ, and sliceOmatic showed an excellent agreement for CSMA, VAT, and SAT measurements on abdominal CT scans. Furthermore, excellent inter‐observer and intra‐observer agreement were achieved. Therefore, results of studies using these different software programmes can reliably be compared.

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Section: Discussionmentioning

confidence: 96%

A comparative study of software programmes for cross‐sectional skeletal muscle and adipose tissue measurements on abdominal computed tomography scans of rectal cancer patients

Vugt

Levolger

Gharbharan

et al. 2016

J cachexia sarcopenia muscle

183

138

View full text Add to dashboard Cite

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“…Motor spinal injury results in inability to perform pressure reduction activities further aggravating viability of the weight-bearing soft tissues. Motor spinal injury also causes muscle atrophy with a subsequence of a higher seating interface pressure over bony prominences 7. These factors directly contribute to the high incidence of pressure ulcers in people with SCI 8…”

mentioning

confidence: 99%

Effect of Wheelchair Tilt-in-Space and Recline Angles on Skin Perfusion Over the Ischial Tuberosity in People With Spinal Cord Injury

Jan

Jones

Rabadi

et al. 2010

Archives of Physical Medicine and Rehabilitation

118

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Objective-To investigate the efficacy of wheelchair tilt-in-space and recline on enhancing skin perfusion over the ischial tuberosity in wheelchair users with spinal cord injury (SCI). Design-Repeated measures, intervention and outcomes measure design. Setting-A university research laboratory.Participants-11 wheelchair users with SCI (9 men, 2 women; mean age ± standard deviation, 37.7±14.2 years; body mass index 24.7±2.6 kg/m 2 ; and duration of injury 8.1±7.5 years).Interventions-6 protocols of various wheelchair tilt-in-space and recline angles were randomly assigned to the participants. Each protocol consisted of a 5-min sitting-induced ischemic period and a 5-min wheelchair tilt-in-space and recline pressure relieving period. A participant sat in a position without tilt or recline for 5 minutes and then sat in one of 6 wheelchair tiled and reclined positions, including (1) 15° tilt-in-space and 100° recline, (2) 25° tilt-in-space and 100° recline, (3) 35° tilt-in-space and 100° recline, (4) 15° tilt-in-space and 120° recline, (5) 25° tilt-in-space and 120° recline, and (6) 35° tilt-in-space and 120° recline. A 5-min washout period (at 35° tilt-inspace and 120° recline) was allowed between protocols.Main Outcome Measures-Laser Doppler flowmetry was used to measure skin perfusion over the ischial tuberosity in response to the changes of body positions caused by performing wheelchair tilt-in-space and recline. Skin perfusion response to wheelchair tilt-in-space and recline was normalized to skin perfusion of the upright seated position (no tilt/recline).Results-When combined with 100° recline, wheelchair tilt-in-space at 35° resulted in a significant increase in skin perfusion as compared with upright seated position (no tilt/recline) © 2010 The American Congress of Rehabilitation Medicine. Published by Elsevier Inc. All rights reserved.Correspondence to Yih-Kuen Jan, PT, PhD, Dept of Rehabilitation Sciences, University of Oklahoma Health Sciences Center, 1200 N Stonewall Ave, Room 3135, Oklahoma City, OK 73117, yjan@ouhsc.edu. Reprints are not available from the author. Publisher's Disclaimer: This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final citable form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.No commercial party having a direct financial interest in the results of the research supporting this article has or will confer a benefit on the authors or on any organization with which the authors are associated. (p<0.05), while there was no significant increase in skin perfusion at 15° and 25° tilt-in-space( non significance). When combined with 120° recline, wheelchair tilt-in-space at 15°, 25°, and 35° tiltin-space all showed a significant inc...

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“…20 ImageJ is a free, publicly available software program from the National Institutes of Health and has been utilized in numerous scientific and orthopaedic publications for data analysis through image capture. 5,7,11,13,18,19,22 This program compares a known distance, the metric ruler in the surgical field, with the number of pixels in the photograph. Once calibrated, the square area of exposed distal tibia and talus was calculated for each photograph.…”

Section: Methodsmentioning

confidence: 99%

Quantification of Posterior Ankle Exposure through an Achilles Tendon-Splitting versus Posterolateral Approach

et al. 2012

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Assessment of Gluteus Maximus Muscle Area With Different Image Analysis Programs

Cited by 6 publications

References 11 publications

A comparative study of software programmes for cross‐sectional skeletal muscle and adipose tissue measurements on abdominal computed tomography scans of rectal cancer patients

A comparative study of software programmes for cross‐sectional skeletal muscle and adipose tissue measurements on abdominal computed tomography scans of rectal cancer patients

Effect of Wheelchair Tilt-in-Space and Recline Angles on Skin Perfusion Over the Ischial Tuberosity in People With Spinal Cord Injury

Quantification of Posterior Ankle Exposure through an Achilles Tendon-Splitting versus Posterolateral Approach

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