Agreement between ST elevation and late enhancement evaluated by MRI in patients with acute myocarditis.
BACKGROUND
ECG is widely used in the evaluation of patients with acute myocarditis. Magnetic resonance imaging (MRI) has emerged as the most important imaging tool in the diagnosis of myocarditis. The objective of this study is to determine the agreement between ECG and MRI findings in patients with acute myocarditis.


METHODS
This is a retrospective cohort that includes 32 consecutive patients with acute myocarditis. ST elevation (STE) in mm was registered in every ECG lead. In every myocardial segment the presence of late enhancement (LE) was registered.


RESULTS
STE was found in 75% of the patients, with the inferolateral region being the most frequently affected (46.9%). LE was found in most of the patients (87.5%); the inferolateral wall was also the most frequently affected (50%). There was a moderate agreement between the inferolateral localization of STE and LE in patients with acute myocarditis, k = 0.43, p = 0.01. There was no agreement for the other localizations.


CONCLUSIONS
There was a moderate agreement between the localization of STE and LE only in the inferolateral localization. LE localization based on the STE localization cannot be inferred, neither vice versa in another localization different from the inferolateral.
Magnetic Resonance Department Instituto Nacional de Cardiología "Ignacio Chávez", Mexico City, Mexico. Electronic address: gabrielamelram@yahoo.com.mx.
Gabriela
G
Meléndez-Ramírez
Research scientist Instituto Nacional de Cardiología "Ignacio Chávez", Mexico City, Mexico.
Alfredo
A
de Micheli
Immunology Department Instituto Nacional de Cardiología "Ignacio Chávez", Mexico City, Mexico.
Maria Elena
ME
Soto
Magnetic Resonance Department Instituto Nacional de Cardiología "Ignacio Chávez", Mexico City, Mexico.
Aloha
A
Meave-González
Computed Tomography Department Instituto Nacional de Cardiología "Ignacio Chávez", Mexico City, Mexico.
Eric
E
Kimura-Hayama
Magnetic Resonance Department Instituto Nacional de Cardiología "Ignacio Chávez", Mexico City, Mexico.
Mónica
M
Alcántara
Emergency Department Instituto Nacional de Cardiología "Ignacio Chávez", Mexico City, Mexico.
Héctor
H
González-Pacheco
D000208:Acute Disease; D000328:Adult; D003287:Contrast Media; D004562:Electrocardiography; D005260:Female; D019786:Gadolinium DTPA; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D009205:Myocarditis / Q000175:diagnosis*; D012189:Retrospective Studies
D003287:Contrast Media; D019786:Gadolinium DTPA
Acute myocarditis; Late enhancement; ST elevation