To the top

Page Manager: Webmaster
Last update: 9/11/2012 3:13 PM

Tell a friend about this page
Print version

Assessment of myocardium … - University of Gothenburg, Sweden Till startsida
Sitemap
To content Read more about how we use cookies on gu.se

Assessment of myocardium at risk with contrast enhanced steady-state free precession cine cardiovascular magnetic resonance compared to single-photon emission computed tomography

Journal article
Authors P. Sorensson
E. Heiberg
N. Saleh
F. Bouvier
Kenneth Caidahl
P. Tornvall
L. Ryden
J. Pernow
H. Arheden
Published in Journal of Cardiovascular Magnetic Resonance
Volume 12
Pages 25
ISSN 1097-6647
Publication year 2010
Published at Institute of Medicine, Department of Molecular and Clinical Medicine
Pages 25
Language en
Links https://doi.org/10.1186/1532-429X-1...
Keywords Aged, Angioplasty, Balloon, Coronary, *Contrast Media, Coronary Angiography, Coronary Occlusion/*complications/diagnosis/therapy, *Gadolinium DTPA, Humans, *Magnetic Resonance Imaging, Cine, Middle Aged, Myocardial Infarction/*diagnosis/diagnostic imaging/etiology/pathology/therapy, Myocardium/*pathology, Observer Variation, Predictive Value of Tests, Reproducibility of Results, Time Factors, *Tomography, Emission-Computed, Single-Photon, Treatment Outcome
Subject categories Cardiovascular medicine

Abstract

BACKGROUND: Final infarct size following coronary occlusion is determined by the duration of ischemia, the size of myocardium at risk (MaR) and reperfusion injury. The reference method for determining MaR, single-photon emission computed tomography (SPECT) before reperfusion, is impractical in an acute setting. The aim of the present study was to evaluate whether MaR can be determined from the contrast enhanced myocardium using steady-state free precession (SSFP) cine cardiovascular magnetic resonance (CMR) performed one week after the acute event in ST-elevation myocardial infarction (STEMI) patients with total coronary occlusion. RESULTS: Sixteen patients with STEMI (age 64 +/- 8 years) received intravenous 99 m-Tc immediately before primary percutaneous coronary intervention. SPECT was performed within four hours. MaR was defined as the non-perfused myocardial volume derived with SPECT. CMR was performed 7.8 +/- 1.2 days after the myocardial infarction using a protocol in which the contrast agent was administered before acquisition of short-axis SSFP cines. MaR was evaluated as the contrast enhanced myocardial volume in the cines by two blinded observers. MaR determined from the enhanced region on cine CMR correlated significantly with that derived with SPECT (r2 = 0.78, p < 0.001). The difference in MaR determined by CMR and SPECT was 0.5 +/- 5.1% (mean +/- SD). The interobserver variability of contrast enhanced cine SSFP measurements was 1.6 +/- 3.7% (mean +/- SD) of the left ventricle wall volume. CONCLUSIONS: Contrast enhanced SSFP cine CMR performed one week after acute infarction accurately depicts MaR prior to reperfusion in STEMI patients with total occlusion undergoing primary PCI. This suggests that a single CMR examination might be performed for determination of MaR and infarct size.

Page Manager: Webmaster|Last update: 9/11/2012
Share:

The University of Gothenburg uses cookies to provide you with the best possible user experience. By continuing on this website, you approve of our use of cookies.  What are cookies?