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Improved anatomical reproducibility in quantitative lower-limb muscle MRI

Purpose To compare the influence of two limb positions and slice prescription using scout-image-based and surface-anatomy-based methods on the reproducibility of quantitative MRI of lower-limb muscles. Materials and Methods Ten healthy subjects were scanned at 3 Tesla with a two-dimensional turbo sp... Full description

Journal Title: Journal of Magnetic Resonance Imaging Apr 2014, Vol.39(4), pp.1033-8
Main Author: Fischmann, Arne
Other Authors: Morrow, Jasper M , Sinclair, Christopher Dj , Reilly, Mary M , Hanna, Michael G , Yousry, Tarek , Thornton, John S
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 10531807 ; E-ISSN: 15222586 ; DOI: 10.1002/jmri.24220
Link: http://search.proquest.com/docview/1508625766/?pq-origsite=primo
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title: Improved anatomical reproducibility in quantitative lower-limb muscle MRI
format: Article
creator:
  • Fischmann, Arne
  • Morrow, Jasper M
  • Sinclair, Christopher Dj
  • Reilly, Mary M
  • Hanna, Michael G
  • Yousry, Tarek
  • Thornton, John S
subjects:
  • Adult–Anatomy & Histology
  • Algorithms–Methods
  • Anatomic Landmarks–Methods
  • Female–Methods
  • Humans–Anatomy & Histology
  • Image Enhancement–Anatomy & Histology
  • Image Interpretation, Computer-Assisted–Anatomy & Histology
  • Lower Extremity–Anatomy & Histology
  • Magnetic Resonance Imaging–Anatomy & Histology
  • Male–Anatomy & Histology
  • Middle Aged–Anatomy & Histology
  • Muscle, Skeletal
ispartof: Journal of Magnetic Resonance Imaging, Apr 2014, Vol.39(4), pp.1033-8
description: Purpose To compare the influence of two limb positions and slice prescription using scout-image-based and surface-anatomy-based methods on the reproducibility of quantitative MRI of lower-limb muscles. Materials and Methods Ten healthy subjects were scanned at 3 Tesla with a two-dimensional turbo spin-echo T1-weighted acquisition. Imaging was performed at thigh and calf level in two subject limb positions and independently repeated by a second operator. Regions-of-interest (ROI) were drawn on three muscles at thigh and calf levels on axial slices at fixed distance from the knee joint and at a level determined by surface anatomy. Results Test-retest reliability of muscle cross-sectional area and ROI area overlap were similar for both limb positioning methods. Changing limb position between scans reduced ROI overlap (P
language: eng
source:
identifier: ISSN: 10531807 ; E-ISSN: 15222586 ; DOI: 10.1002/jmri.24220
fulltext: fulltext
issn:
  • 10531807
  • 1053-1807
  • 15222586
  • 1522-2586
url: Link


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titleImproved anatomical reproducibility in quantitative lower-limb muscle MRI
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descriptionPurpose To compare the influence of two limb positions and slice prescription using scout-image-based and surface-anatomy-based methods on the reproducibility of quantitative MRI of lower-limb muscles. Materials and Methods Ten healthy subjects were scanned at 3 Tesla with a two-dimensional turbo spin-echo T1-weighted acquisition. Imaging was performed at thigh and calf level in two subject limb positions and independently repeated by a second operator. Regions-of-interest (ROI) were drawn on three muscles at thigh and calf levels on axial slices at fixed distance from the knee joint and at a level determined by surface anatomy. Results Test-retest reliability of muscle cross-sectional area and ROI area overlap were similar for both limb positioning methods. Changing limb position between scans reduced ROI overlap (P<0.01). Scout-image-based slice prescription resulted in narrower limits of agreement and higher intraclass correlation coefficients compared with surface-anatomy-based slice...
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titleImproved anatomical reproducibility in quantitative lower-limb muscle MRI
descriptionPurpose To compare the influence of two limb positions and slice prescription using scout-image-based and surface-anatomy-based methods on the reproducibility of quantitative MRI of lower-limb muscles. Materials and Methods Ten healthy subjects were scanned at 3 Tesla with a two-dimensional turbo spin-echo T1-weighted acquisition. Imaging was performed at thigh and calf level in two subject limb positions and independently repeated by a second operator. Regions-of-interest (ROI) were drawn on three muscles at thigh and calf levels on axial slices at fixed distance from the knee joint and at a level determined by surface anatomy. Results Test-retest reliability of muscle cross-sectional area and ROI area overlap were similar for both limb positioning methods. Changing limb position between scans reduced ROI overlap (P<0.01). Scout-image-based slice prescription resulted in narrower limits of agreement and higher intraclass correlation coefficients compared with surface-anatomy-based slice...
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abstractPurpose To compare the influence of two limb positions and slice prescription using scout-image-based and surface-anatomy-based methods on the reproducibility of quantitative MRI of lower-limb muscles. Materials and Methods Ten healthy subjects were scanned at 3 Tesla with a two-dimensional turbo spin-echo T1-weighted acquisition. Imaging was performed at thigh and calf level in two subject limb positions and independently repeated by a second operator. Regions-of-interest (ROI) were drawn on three muscles at thigh and calf levels on axial slices at fixed distance from the knee joint and at a level determined by surface anatomy. Results Test-retest reliability of muscle cross-sectional area and ROI area overlap were similar for both limb positioning methods. Changing limb position between scans reduced ROI overlap (P<0.01). Scout-image-based slice prescription resulted in narrower limits of agreement and higher intraclass correlation coefficients compared with surface-anatomy-based slice...
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doi10.1002/jmri.24220
urlhttp://search.proquest.com/docview/1508625766/
date2014-04-01