title: [Evaluation of left ventricular ejection fraction using an automated contour tracking method: comparison with equilibrium radionuclide angiography].
abstract: A recently developed contour tracking method provides automated edge detection of left ventricular endocardium without a region of interest. The accuracy of this automated contour tracking (ACT) method in the evaluation of left ventricular ejection fraction was assessed in 20 patients (16 males and 4 females, mean age 58 years) using both the ACT method and equilibrium radionuclide angiography. Ejection fractions measured by the ACT method correlated well with those measured by equilibrium radionuclide angiography (y = 0.8x + 11.9, r = 0.91, SEE = 4.0%, p < 0.01). The ACT method provides an accurate estimate of left ventricular ejection fraction.
authors.affiliation: Division of Cardiology, Kobe General Hospital.
authors.forename: T
authors.initials: T
authors.lastname: Hamada
authors.forename: K
authors.initials: K
authors.lastname: Yoshida
authors.forename: T
authors.initials: T
authors.lastname: Hozumi
authors.forename: T
authors.initials: T
authors.lastname: Akasaka
authors.forename: T
authors.initials: T
authors.lastname: Takagi
authors.forename: Y
authors.initials: Y
authors.lastname: Yonezawa
authors.forename: Y
authors.initials: Y
authors.lastname: Ogata
authors.forename: T
authors.initials: T
authors.lastname: Yagi
authors.forename: J
authors.initials: J
authors.lastname: Kawai
authors.forename: H
authors.initials: H
authors.lastname: Ito
authors.forename: S
authors.initials: S
authors.lastname: Morioka
authors.forename: H
authors.initials: H
authors.lastname: Yoshioka
authors.forename: M
authors.initials: M
authors.lastname: Nishiura
authors.forename: M
authors.initials: M
authors.lastname: Watanabe
authors.forename: J
authors.initials: J
authors.lastname: Yoshikawa
mesh_terms: D004452:Echocardiography / Q000379:methods*; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008297:Male; D008875:Middle Aged; D011875:Radionuclide Angiography; D013318:Stroke Volume / Q000502:physiology*; D016277:Ventricular Function, Left / Q000502:physiology*