title: [Area strain: normal values for a new parameter in healthy people].
abstract: The echocardiographic technology known as three-dimensional wall motion tracking offers three-dimensional images of the myocardium and provides multiple measures of deformation, one of which is known as "area strain" (AS), which combines left ventricular longitudinal and circumferential deformations. Our aim was to describe the normal maximum systolic reference AS value in a sample of healthy subjects. Sixty consecutive subjects without known cardiovascular risk factors or diseases were enrolled, and left ventricular AS was measured. Overall mean AS was -38.87 ± 5.89%. Mean values at the level of the basal, middle, and apical segments were -38.42 ± 7.58%, -38.74 ± 6.34%, and -43.18 ± 12.81%, respectively. Thus, our results show for the first time the reference values for AS in healthy subjects.
authors.affiliation: Unidad de Imagen Cardiológica, Hospital Carlos III, Instituto Cardiovascular, Madrid, España. leopisla@hotmail.com
authors.forename: Leopoldo
authors.initials: L
authors.lastname: Pérez de Isla
authors.forename: Mariángel
authors.initials: M
authors.lastname: Millán
authors.forename: Vera
authors.initials: V
authors.lastname: Lennie
authors.forename: Maribel
authors.initials: M
authors.lastname: Quezada
authors.forename: Juan
authors.initials: J
authors.lastname: Guinea
authors.forename: Carlos
authors.initials: C
authors.lastname: Macaya
authors.forename: José
authors.initials: J
authors.lastname: Zamorano
mesh_terms: D000328:Adult; D004452:Echocardiography; D019560:Echocardiography, Three-Dimensional / Q000379:methods*; D005260:Female; D006321:Heart / Q000503:physiopathology*; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008297:Male; D008875:Middle Aged; D015588:Observer Variation; D012016:Reference Values; D012307:Risk Factors; D016277:Ventricular Function, Left