title: Real-time gating of IVUS sequences based on motion blur analysis: method and quantitative validation.
abstract: Intravascular Ultrasound (IVUS) is an image-guiding technique for cardiovascular diagnostic, providing cross-sectional images of vessels. During the acquisition, the catheter is pulled back (pullback) at a constant speed in order to acquire spatially subsequent images of the artery. However, during this procedure, the heart twist produces a swinging fluctuation of the probe position along the vessel axis. In this paper we propose a real-time gating algorithm based on the analysis of motion blur variations during the IVUS sequence. Quantitative tests performed on an in-vitro ground truth data base shown that our method is superior to state of the art algorithms both in computational speed and accuracy.
authors.affiliation: 1 Dept. Matemtica Aplicada i Anlisi, Universitat de Barcelona, Gran Via 585, 08007 Barcelona, Spain.
authors.forename: Carlo
authors.initials: C
authors.lastname: Gatta
authors.forename: Simone
authors.initials: S
authors.lastname: Balocco
authors.forename: Francesco
authors.initials: F
authors.lastname: Ciompi
authors.forename: Rayyan
authors.initials: R
authors.lastname: Hemetsberger
authors.forename: Oriol
authors.initials: O
authors.lastname: Rodriguez Leor
authors.forename: Petia
authors.initials: P
authors.lastname: Radeva
mesh_terms: D000465:Algorithms; D016477:Artifacts; D055424:Cardiac-Gated Imaging Techniques / Q000379:methods*; D003199:Computer Systems; D006801:Humans; D007089:Image Enhancement / Q000379:methods*; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D009038:Motion; D010363:Pattern Recognition, Automated / Q000379:methods*; D019047:Phantoms, Imaging; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013382:Subtraction Technique; D018084:Ultrasonography, Interventional / Q000295:instrumentation / Q000379:methods*