A fast and effective method to assess myocardial hyperemia in acute myocarditis by magnetic resonance View Full Text


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Article Info

DATE

2014-03

AUTHORS

Matteo Perfetti, Gelsomina Malatesta, Irene Alvarez, Riccardo Liga, Andrea Barison, Giancarlo Todiere, Nicoletta Eletto, Raffaele De Caterina, Massimo Lombardi, Giovanni Donato Aquaro

ABSTRACT

Current cardiac magnetic resonance (CMR) quantitative signs for the diagnosis of myocarditis include myocardial edema, fibrosis and myocardial hyperemia (Hyp). Methods for the assessment of Hyp are actually complex and time-consuming. To test a simple and fast method to assess Hyp, using contrast enhancement steady state free precession (ceSSFP) technique. CMR imaging at 1.5T was performed on 39 patients with diagnosis of acute myocarditis and in 20 healthy controls. Hyp was evaluated in systolic and diastolic frames (Hyp-SYS and Hyp-DIA) as areas of myocardial hyperintensity in ceSSFP images early after gadolinium injection. Myocardial edema was evaluated using T2-STIR images. Myocardial fibrosis was assessed in conventional late gadolinium enhancement (LGE) images. A value of ≤12.1 g of Hyp-DIA was obtained as cut-off of normality in healthy controls. Using this threshold, Hyp was detected in 30 patients (77 %) with myocarditis. LGE was detected in 36 patients (92 %), and myocardial edema in 38 (97 %) patients with myocarditis A linear relation was found between Hyp-DIA and the extent of myocardial edema (R(2) 0.48, 95 % CI 0.47-0.85, p < 0.001) and the extent of LGE (R(2) 0.41, 95 % CI 0.31-0.61, p < 0.001). Patients with hyperemia had higher levels of C-reactive protein (p < 0.001), a higher extent of LGE (p < 0.05) and a larger left atrial area (p < 0.05). ceSSFP sequence at CMR is a novel and fast method to assess myocardial hyperemia in patient with acute myocarditis. Compared with non-Hyp subjects, patients with Hyp had more signs of inflammation and myocardial damage. More... »

PAGES

629-637

References to SciGraph publications

  • 2010-12. Quantitative analysis of late gadolinium enhancement in hypertrophic cardiomyopathy in JOURNAL OF CARDIOVASCULAR MAGNETIC RESONANCE
  • 2003-02. Long-term follow-up of patients with acute myocarditis by magnetic resonance imaging in MAGNETIC RESONANCE MATERIALS IN PHYSICS, BIOLOGY AND MEDICINE
  • 2013-06. Assessment of acute myocarditis by cardiovascular MR: diagnostic performance of shortened protocols in THE INTERNATIONAL JOURNAL OF CARDIOVASCULAR IMAGING
  • Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1007/s10554-014-0371-6

    DOI

    http://dx.doi.org/10.1007/s10554-014-0371-6

    DIMENSIONS

    https://app.dimensions.ai/details/publication/pub.1033250659

    PUBMED

    https://www.ncbi.nlm.nih.gov/pubmed/24449336


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    39 schema:description Current cardiac magnetic resonance (CMR) quantitative signs for the diagnosis of myocarditis include myocardial edema, fibrosis and myocardial hyperemia (Hyp). Methods for the assessment of Hyp are actually complex and time-consuming. To test a simple and fast method to assess Hyp, using contrast enhancement steady state free precession (ceSSFP) technique. CMR imaging at 1.5T was performed on 39 patients with diagnosis of acute myocarditis and in 20 healthy controls. Hyp was evaluated in systolic and diastolic frames (Hyp-SYS and Hyp-DIA) as areas of myocardial hyperintensity in ceSSFP images early after gadolinium injection. Myocardial edema was evaluated using T2-STIR images. Myocardial fibrosis was assessed in conventional late gadolinium enhancement (LGE) images. A value of ≤12.1 g of Hyp-DIA was obtained as cut-off of normality in healthy controls. Using this threshold, Hyp was detected in 30 patients (77 %) with myocarditis. LGE was detected in 36 patients (92 %), and myocardial edema in 38 (97 %) patients with myocarditis A linear relation was found between Hyp-DIA and the extent of myocardial edema (R(2) 0.48, 95 % CI 0.47-0.85, p < 0.001) and the extent of LGE (R(2) 0.41, 95 % CI 0.31-0.61, p < 0.001). Patients with hyperemia had higher levels of C-reactive protein (p < 0.001), a higher extent of LGE (p < 0.05) and a larger left atrial area (p < 0.05). ceSSFP sequence at CMR is a novel and fast method to assess myocardial hyperemia in patient with acute myocarditis. Compared with non-Hyp subjects, patients with Hyp had more signs of inflammation and myocardial damage.
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