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Computer-assisted calculation of myocardial infarct size shortens the evaluation time of contrast-enhanced cardiac MRI

Rosendahl, Lene; Blomstrand, Peter; Heiberg, Einar LU ; Ohlsson, Jan; Bjoerklund, Per-Gunnar; Ahlander, Britt-Marie and Engvall, Jan (2008) In Clinical Physiology and Functional Imaging 28(1). p.1-7
Abstract
Background: Delayed enhancement magnetic resonance imaging depicts scar in the left ventricle which can be quantitatively measured. Manual segmentation and scar determination is time consuming. The purpose of this study was to evaluate a software for infarct quantification, to compare with manual scar determination, and to measure the time saved. Methods: Delayed enhancement magnetic resonance imaging was performed in 40 patients where myocardial perfusion single photon emission computed tomography imaging showed irreversible uptake reduction suggesting a myocardial scar. After segmentation, the semi-automatic software was applied. A scar area was displayed, which could be corrected and compared with manual delineation. The different time... (More)
Background: Delayed enhancement magnetic resonance imaging depicts scar in the left ventricle which can be quantitatively measured. Manual segmentation and scar determination is time consuming. The purpose of this study was to evaluate a software for infarct quantification, to compare with manual scar determination, and to measure the time saved. Methods: Delayed enhancement magnetic resonance imaging was performed in 40 patients where myocardial perfusion single photon emission computed tomography imaging showed irreversible uptake reduction suggesting a myocardial scar. After segmentation, the semi-automatic software was applied. A scar area was displayed, which could be corrected and compared with manual delineation. The different time steps were recorded with both methods. Results: The software shortened the average evaluation time by 12 4 min per cardiac exam, compared with manual delineation. There was good correlation of myocardial volume, infarct volume and infarct percentage (%) between the two methods, r = 0 95, r = 0 92 and r = 0 91 respectively. Conclusion: A computer software for myocardial volume and infarct size determination cut the evaluation time by more than 50% compared with manual assessment, with maintained clinical accuracy. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
time saving, semi-automatic, magnetic resonance imaging, computer software, myocardial infarct size
in
Clinical Physiology and Functional Imaging
volume
28
issue
1
pages
1 - 7
publisher
Wiley Online Library
external identifiers
  • wos:000251629100001
  • scopus:37349011248
ISSN
1475-0961
DOI
10.1111/j.1475-097X.2007.00765.x
language
English
LU publication?
yes
id
7989ade3-02fa-4078-bba2-e1e66844aa3e (old id 966152)
date added to LUP
2008-08-07 11:06:12
date last changed
2017-01-01 04:59:43
@article{7989ade3-02fa-4078-bba2-e1e66844aa3e,
  abstract     = {Background: Delayed enhancement magnetic resonance imaging depicts scar in the left ventricle which can be quantitatively measured. Manual segmentation and scar determination is time consuming. The purpose of this study was to evaluate a software for infarct quantification, to compare with manual scar determination, and to measure the time saved. Methods: Delayed enhancement magnetic resonance imaging was performed in 40 patients where myocardial perfusion single photon emission computed tomography imaging showed irreversible uptake reduction suggesting a myocardial scar. After segmentation, the semi-automatic software was applied. A scar area was displayed, which could be corrected and compared with manual delineation. The different time steps were recorded with both methods. Results: The software shortened the average evaluation time by 12 4 min per cardiac exam, compared with manual delineation. There was good correlation of myocardial volume, infarct volume and infarct percentage (%) between the two methods, r = 0 95, r = 0 92 and r = 0 91 respectively. Conclusion: A computer software for myocardial volume and infarct size determination cut the evaluation time by more than 50% compared with manual assessment, with maintained clinical accuracy.},
  author       = {Rosendahl, Lene and Blomstrand, Peter and Heiberg, Einar and Ohlsson, Jan and Bjoerklund, Per-Gunnar and Ahlander, Britt-Marie and Engvall, Jan},
  issn         = {1475-0961},
  keyword      = {time saving,semi-automatic,magnetic resonance imaging,computer software,myocardial infarct size},
  language     = {eng},
  number       = {1},
  pages        = {1--7},
  publisher    = {Wiley Online Library},
  series       = {Clinical Physiology and Functional Imaging},
  title        = {Computer-assisted calculation of myocardial infarct size shortens the evaluation time of contrast-enhanced cardiac MRI},
  url          = {http://dx.doi.org/10.1111/j.1475-097X.2007.00765.x},
  volume       = {28},
  year         = {2008},
}