title: Focused transthoracic echocardiography by sports medicine physicians: measurements relevant to hypertrophic cardiomyopathy.
abstract: OBJECTIVE
  The purpose of this study was to investigate whether sports medicine physicians can use portable echocardiography to obtain measurements pertinent to hypertrophic cardiomyopathy.
  
  
  METHODS
  Thirty male collegiate athletes, aged 18 to 21 years, were prospectively enrolled. Focused portable echocardiography was performed by a board-certified sports medicine physician and a resident physician, followed by comprehensive echocardiography within 2 weeks by a registered diagnostic cardiac sonographer. A left parasternal long-axis view was acquired to measure 3 dimensions: (1) end-diastolic interventricular septal thickness (IVSd), (2) end-diastolic left ventricular internal diameter (LVIDd), and (3) end-diastolic left ventricular posterior wall thickness (LVPWd).
  
  
  RESULTS
  Intraclass correlation coefficients between the sports medicine physician and the sonographer were strong: 0.77 for IVSd, 0.73 for LVIDd, and 0.64 for LVPWd. Intraclass correlation coefficients between measurements by the resident physician and sonographer were strong to moderate: 0.61 for IVSd, 0.62 for LVIDd, and 0.63 for LVPWd. Across all 3 readers, intraclass correlation coefficient calculations were 0.77 for IVSd, 0.81 LVIDd, and 0.75 for LVPWd, which indicated strong inter-rater reliability.
  
  
  CONCLUSIONS
  Sports medicine physicians are able to obtain measurements relevant to the diagnosis of hypertrophic cardiomyopathy with focused portable echocardiography that are consistent with comprehensive echocardiography by a registered sonographer.
authors: Division of Sports Medicine, Children's Hospital Boston, Boston, MA 02115 USA. eyim@bidmc.harvard.edu
authors: Eugene S
authors: ES
authors: Yim
authors: Edward F
authors: EF
authors: Gillis
authors: Krystin
authors: K
authors: Ojala
authors: James
authors: J
authors: MacDonald
authors: Frederick C
authors: FC
authors: Basilico
authors: Gianmichael D
authors: GD
authors: Corrado
mesh_terms: D000293:Adolescent; D000328:Adult; D002312:Cardiomyopathy, Hypertrophic / Q000000981:diagnostic imaging*; D004452:Echocardiography / Q000295:instrumentation / Q000706:statistics & numerical data*; D006346:Heart Septum / Q000000981:diagnostic imaging; D006352:Heart Ventricles / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D011446:Prospective Studies; D015203:Reproducibility of Results; D013178:Sports Medicine / Q000706:statistics & numerical data*; D055815:Young Adult