title: Usefulness of real-time three-dimensional echocardiography for reliable measurement of cardiac output in patients with ischemic or idiopathic dilated cardiomyopathy.
abstract: The determination of stroke volume (SV) is a potentially important application of real-time 3-dimensional echocardiography (RT3DE). SV measurements by thermodilution were compared with values obtained using transthoracic RT3DE in a sequential cohort of patients who underwent assessment for potential cardiac transplantation. There was a strong correlation between echocardiographically derived SV and catheterization data (r = 0.95, n = 14). On average, RT3DE appeared to underestimate SV by 7.5 ml (SD = 5.8) or 17% (SD = 12%). A role for RT3DE in the measurement of SV in severe heart failure is suggested.
authors.affiliation: Department of Echocardiography.
authors.forename: Sean M
authors.initials: SM
authors.lastname: Fleming
authors.forename: Barry
authors.initials: B
authors.lastname: Cumberledge
authors.forename: Christoph
authors.initials: C
authors.lastname: Kiesewetter
authors.forename: Gareth
authors.initials: G
authors.lastname: Parry
authors.forename: Antoinette
authors.initials: A
authors.lastname: Kenny
mesh_terms: D000328:Adult; D002311:Cardiomyopathy, Dilated / Q000000981:diagnostic imaging*; D019560:Echocardiography, Three-Dimensional / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011237:Predictive Value of Tests; D012680:Sensitivity and Specificity; D013318:Stroke Volume; D013815:Thermodilution