title: [Myocardial regional thickness in patients with and without cardiomyopathy assessed by cardiac magnetic resonance].
abstract: OBJECTIVE
  To explore regional differences in myocardial wall thickness (WT) among the most prevalent cardiomyopathies and in individuals without structural heart disease using cardiac magnetic resonance.
  
  
  METHODS
  Patients older than 18 years referred to cardiac magnetic resonance during the period between January 2014 and September 2014, with a diagnosis of hypertrophic cardiomyopathy, idiopathic dilated cardiomyopathy, ischemic cardiomyopathy, and myocarditis were retrospectively selected from our database.
  
  
  RESULTS
  One hundred twenty patients patients were included. The control group had an average WT of 5.9±1.1mm, with a WT index of 2.9±0.8. Significantly lower mean WT in the apical segments were identified in both the control group (basal 6.7±1.3 vs. mid 6.0±1.3 vs. apical 4.6±1.0mm, P<.0001) and in all evaluated cardiomyopathies (hypertrophic cardiomyopathy: basal 10.5±2.4 vs. mid 10.8±2.7 vs. apical 7.3±3.3mm, P<.0001; idiopathic dilated cardiomyopathy: basal 7.7±1.7 vs. mid 7.6±1.3 vs. apical 5.4±1.3mm, P<.0001; ischemic cardiomyopathy: basal 7.4±1.7 vs. mid 7.5±1.9 vs. apical 5.5±1.8mm, P<.0001; myocarditis: basal 7.1±1.5 vs. mid 6.4±1.1 vs. apical 5.1±0.8, P<.0001). Significant gender differences were also evident regarding the mean WT both in the control group (male 6.5±2.1 vs. female 5.2±1.7mm, P<.0001), as in hypertrophic cardiomyopathy (10.5±5.3 vs. 8.5±5.7mm, P<.0001) and myocarditis (6.6±2.0 vs. 5.2±1.6mm, P<.0001).
  
  
  CONCLUSIONS
  We found a relatively high prevalence of segments commonly deemed thinned among patients without structural heart disease. We also observed a marked asymmetry and longitudinal gradient in wall thickness both in controls and in the various cardiomyopathies evaluated.
authors.affiliation: Departamento de Estudios Cardiovasculares No Invasivos de Diagnóstico Maipú, Buenos Aires, Argentina.
authors.forename: Macarena
authors.initials: M
authors.lastname: de Zan
authors.affiliation: Departamento de Estudios Cardiovasculares No Invasivos de Diagnóstico Maipú, Buenos Aires, Argentina.
authors.forename: Patricia
authors.initials: P
authors.lastname: Carrascosa
authors.affiliation: Departamento de Estudios Cardiovasculares No Invasivos de Diagnóstico Maipú, Buenos Aires, Argentina.
authors.forename: Alejandro
authors.initials: A
authors.lastname: Deviggiano
authors.affiliation: Departamento de Estudios Cardiovasculares No Invasivos de Diagnóstico Maipú, Buenos Aires, Argentina.
authors.forename: Carlos
authors.initials: C
authors.lastname: Capuñay
authors.affiliation: Departamento de Estudios Cardiovasculares No Invasivos de Diagnóstico Maipú, Buenos Aires, Argentina. Electronic address: grodriguezgranillo@gmail.com.
authors.forename: Gastón A
authors.initials: GA
authors.lastname: Rodríguez-Granillo
mesh_terms: D000328:Adult; D057791:Cardiac Imaging Techniques; D009202:Cardiomyopathies / Q000000981:diagnostic imaging* / Q000473:pathology*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009206:Myocardium / Q000473:pathology*; D012189:Retrospective Studies
keywords: Adelgazamiento; Argentina; Cardiac magnetic resonance; Hipertrofia; Hypertrophy; Reference values; Resonancia magnética cardíaca; Thinning; Valores de referencia