Diagnostic value of cardiac magnetic resonance quantitative tissue tracking for acute myocarditis
Liu Gang
Zhang Xingmei
Wen Zhaoying
Fan Zhanming
He Yi
Zeng Mu
Ma Zenglin
Abstract：Objective To explore the value of cardiac magnetic resonance (CMR) quantitative tissuetracking in diagnosis of acute myocarditis.Methods Thirty-five patients diagnosed of acute myocarditis and thirty-five healthy volunteers from February 2014 to October 2015 in Beijing Anzhen Hospital,Capital Medical University were enrolled.All patients were scanned magnetic resonance CINE,T1 and T2 mapping,early gadolinium enhancement(EGE) and late gadolinium enhancement (LGE) sequences to evaluate the diagnostic efficiency.Results T1 relaxation time,T2 relaxation time,T2 signal intensity ratio and EGE ratio in patients with acute myocarditis were significantly higher than those in healthy people [(1 310 ± 62) ms vs (1 247 ± 27) ms,(65 ± 8)ms vs (55 ±4)ms,(1.85 ±0.21)％ vs (1.58 ±0.15)％,(3.9 ± 1.6)％ vs (2.1 ± 1.4)％] (P ＜0.05).Healthy people did not show LGE;35 patients with acute myocarditis showed 47 myocardial segments of LGE located in epicardium 21 sites (44.7％),midmyocardium 22 sites (46.8％),side wall 22 sites (46.8％) and inferior wall 23 sites(48.9％).The sensitivity,specificity,accuracy,positive predictive value and negative predictive value in the diagnosis of acute myocarditis through T1 relaxation time in combination with T2 relaxation time were higher than those diagnosed by the Lake-Louise Criteria (90.5％ vs 81.4％,100.0％ vs 96.6％,95.5％ vs 93.3％,100.0％ vs 95.4％,93.4％ vs 88.5％).Conclusion CMR quantitative tissue-tracking has good diagnostic efficiency for acute myocarditis.
Keywords：Acute myocarditisMagnetic resonance imagingT1 and T2 mapping sequences
Publication Date：2017-01-01
Online Publishing Date：2026-09-14(First online date of this platform, not the publication date of the document)
Pages：5( 41-45 )