Automated myocardial edge detection on MR images: Accuracy in consecutive subjects

Steven R Fleagle; Daniel R Thedens; William Stanford; Brad H Thompson; John M Weston; Pranav P Patel; David J Skorton

doi:10.1002/jmri.1880030508

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Automated myocardial edge detection on MR images: Accuracy in consecutive subjects

Journal article

Peer reviewed

Automated myocardial edge detection on MR images: Accuracy in consecutive subjects

Steven R Fleagle, Daniel R Thedens, William Stanford, Brad H Thompson, John M Weston, Pranav P Patel and David J Skorton

Journal of magnetic resonance imaging, Vol.3(5), pp.738-741

09/1993

DOI: 10.1002/jmri.1880030508

PMID: 8400559

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Abstract

The authors previously demonstrated the feasibility of graph-searching-based automated edge detection in cardiac magnetic resonance (MR) imaging. To further assess the clinical utility of this method, unselected images from 11 consecutive subjects undergoing clinically indicated (except for one healthy volunteer) short-axis spin-echo MR imaging were analyzed. A total of 142 images from the 11 subjects, encompassing the left ventricle from apex to outflow tract, were analyzed. The computer algorithm correctly identified complete endocardial and epicardial contours in 121 of 142 images (85%). Correlations between observer-traced and computer-derived epicardial areas for all images were good (r = .71 for epicardium, r = .83 for endocardium); they improved for a subset of higher-quality images (r = .82 for epicardium, r = .92 for endocardium). The authors conclude that the current data further support the usefulness of computer digital image processing in geometric analysis of cardiac MR image data.

Anatomy

Heart

51.121411

ejection fraction

function

Image display

Image processing

ventricles

volume

Volume measurements

Details

Title: Subtitle: Automated myocardial edge detection on MR images: Accuracy in consecutive subjects
Creators: Steven R Fleagle - University of Iowa
Daniel R Thedens - University of Iowa
William Stanford - University of Iowa
Brad H Thompson - University of Iowa
John M Weston - University of Iowa
Pranav P Patel - University of Iowa
David J Skorton - University of Iowa
Resource Type: Journal article
Publication Details: Journal of magnetic resonance imaging, Vol.3(5), pp.738-741
Publisher: Wiley Subscription Services, Inc., A Wiley Company
DOI: 10.1002/jmri.1880030508
PMID: 8400559
ISSN: 1053-1807
eISSN: 1522-2586
Number of pages: 4
Language: English
Date published: 09/1993
Academic Unit: Radiology; Electrical and Computer Engineering
Record Identifier: 9984197917102771

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