title: Quantification of tricuspid regurgitation by live three-dimensional transthoracic echocardiographic measurements of vena contracta area.
abstract: We evaluated tricuspid regurgitation (TR) by multiple echocardiographic techniques in 93 consecutive patients who underwent standard two-dimensional (2D) and live three-dimensional (3D) transthoracic echocardiography (TTE). TR vena contracta (VC) area was obtained by 3D TTE by systematic and sequential cropping of the acquired 3D TTE dataset. Assessment of VC area by 3D TTE was compared to 2D TTE measurements of the ratio of TR regurgitant jet area to right atrial area (RJA/RAA), RJA alone, VC width, and calculated VC area. VC area from 3D TTE closely correlated with RJA/RAA and RJA alone as determined from 2D TTE measurements. Live 3D TTE color Doppler measurements of VC area can be used for quantitative assessment of TR and offer incremental value for quantification of particularly severe regurgitant lesions.
authors.affiliation: Division of Cardiovascular Diseases, The University of Alabama at Birmingham, Heart Station SW-S102, 619 South 19th Street, Birmingham, AL 35249, USA.
authors.forename: Dasan E
authors.initials: DE
authors.lastname: Velayudhan
authors.forename: Todd M
authors.initials: TM
authors.lastname: Brown
authors.forename: Navin C
authors.initials: NC
authors.lastname: Nanda
authors.forename: Vinod
authors.initials: V
authors.lastname: Patel
authors.forename: Andrew P
authors.initials: AP
authors.lastname: Miller
authors.forename: Farhat
authors.initials: F
authors.lastname: Mehmood
authors.forename: Sanjay
authors.initials: S
authors.lastname: Rajdev
authors.forename: Ligang
authors.initials: L
authors.lastname: Fang
authors.forename: Ebenezer E
authors.initials: EE
authors.lastname: Frans
authors.forename: Srinivas
authors.initials: S
authors.lastname: Vengala
authors.forename: Pavan
authors.initials: P
authors.lastname: Madadi
authors.forename: Pridhvi
authors.initials: P
authors.lastname: Yelamanchili
authors.forename: Oben
authors.initials: O
authors.lastname: Baysan
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000407:Alabama; D018618:Echocardiography, Doppler, Color; D019560:Echocardiography, Three-Dimensional; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted; D016014:Linear Models; D008297:Male; D008875:Middle Aged; D015588:Observer Variation; D011669:Pulmonary Wedge Pressure; D012680:Sensitivity and Specificity; D012720:Severity of Illness Index; D013318:Stroke Volume; D014262:Tricuspid Valve Insufficiency / Q000000981:diagnostic imaging* / Q000453:epidemiology / Q000503:physiopathology; D016278:Ventricular Function, Right