Waduud, MA orcid.org/0000-0001-5567-9952, Drozd, M orcid.org/0000-0003-0255-4624, Linton, E et al. (5 more authors) (2018) Influences of clinical experience in the quantification of morphometric sarcopaenia: a cohort study. The British Journal of Radiology, 91 (1088). 20180067. ISSN 0007-1285
Abstract
Objective: The measurement of total psoas muscle area (TPMA) on CT imaging is commonly made using either manual tracing or a semi-automated technique. We examined whether clinical experience influenced measurement of TPMA when utilising these two commonly used methods and describe the relationship between techniques.
Methods: Pre-operative cross-sectional CT imaging of 114 consecutive patients undergoing elective endovascular aneurysm repair were analysed. Retrospective measurements of the TPMA were performed by four independent investigators with a range of clinical experience (medical student to specialist surgical registrar) using either technique. Intra- and inter-observer differences were assessed.
Results: There was no significant intra- or inter-observer differences when measuring the TPMA. Clinical experience also did not influence TPMA measurements recorded. Significant differences were observed between
techniques when measuring TPMA (mean −65.8, 239.3 SD, p = 0.004). Measurement differences between techniques were highly correlated and modelled using linear regression.
Conclusion: Both manual tracing and semi-automated technique quantification methods of measuring TPMA are highly reproducible and independent of assessor bias and clinical experience.
Advances in knowledge: Either of the commonly used techniques to measure TPMA may be reliably used by an individual with appropriate training. We describe a relationship to facilitate comparison between these methods by which sarcopaenia may be quantified in patients with routine CT imaging.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | (c) 2018, The Authors. Published by the British Institute of Radiology. This is the published version of an article published in the British Journal of Radiology. Uploaded in accordance with the publisher's self-archiving policy. |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Medicine and Health (Leeds) > School of Medicine (Leeds) > Leeds Institute of Cardiovascular and Metabolic Medicine (LICAMM) > Discovery & Translational Science Dept (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 02 Jan 2019 16:48 |
Last Modified: | 23 May 2019 00:43 |
Status: | Published |
Publisher: | British Institute of Radiology |
Identification Number: | 10.1259/bjr.20180067 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:140043 |