title: [Measurement of plaque volume using three-dimensional intravascular ultrasound: in vitro study].
abstract: The usefulness of three-dimensional echocardiography using intravascular ultrasound (3D-IVUS) for the measurement of plaque volume was evaluated by comparing plaque volume derived from 3D-IVUS with that directly measured in 10 autopsied iliac or femoral plaque models (5-15 mm long). Using IVUS (3.5 F, 30 MHz), sequential cross-sectional images for three-dimensional datasets were acquired with a motorized catheter pullback device connected to the three-dimensional reconstruction system. Three-dimensional reconstruction was performed from the sum of the two-dimensional cross-sectional views. Plaque volumes were calculated using a summation of disks algorithm based on the reconstructed multiple short-axis cross-sections from the three-dimensional data. Three-dimensional IVUS demonstrated a good correlation with direct measurement of plaque volume (y = 0.71x + 0.001, r = 0.80, SEE = 0.003 ml), so is useful for the measurement of plaque volumes in the experimental models.
authors.affiliation: Division of Cardiology, Kobe General Hospital.
authors.forename: M
authors.initials: M
authors.lastname: Nakazato
authors.forename: K
authors.initials: K
authors.lastname: Yoshida
authors.forename: T
authors.initials: T
authors.lastname: Hozumi
authors.forename: M
authors.initials: M
authors.lastname: Munakata
authors.forename: T
authors.initials: T
authors.lastname: Akasaka
authors.forename: T
authors.initials: T
authors.lastname: Takagi
authors.forename: S
authors.initials: S
authors.lastname: Kaji
authors.forename: T
authors.initials: T
authors.lastname: Kawamoto
authors.forename: S
authors.initials: S
authors.lastname: Morioka
authors.forename: J
authors.initials: J
authors.lastname: Yoshikawa
mesh_terms: D001161:Arteriosclerosis / Q000000981:diagnostic imaging*; D019560:Echocardiography, Three-Dimensional; D006801:Humans; D008961:Models, Structural; D012044:Regression Analysis; D018608:Ultrasonography, Doppler; D018084:Ultrasonography, Interventional