title: A robust 3-D IVUS transducer tracking using single-plane cineangiography.
abstract: During an intravascular ultrasound (IVUS) intervention, a catheter with an ultrasound transducer is introduced in the body through a blood vessel, and then, pulled back to image a sequence of vessel cross sections. Unfortunately, there is no 3-D information about the position and orientation of these cross-section planes, which makes them less informative. To position the IVUS images in space, some researchers have proposed complex stereoscopic procedures relying on biplane angiography to get two X-ray image sequences of the IVUS transducer trajectory along the catheter. To simplify this procedure, we and others have elaborated algorithms to recover the transducer 3-D trajectory with only a single view X-ray image sequence. In this paper, we present an improved method that provides both automated 2-D and 3-D transducer tracking based on pullback speed as a priori information. The proposed algorithm is robust to erratic pullback speed and is more accurate than the previous single-plane 3-D tracking methods.
authors.affiliation: Université de Montreal, Montreal, Canada. jourdaim@iro.umontreal.ca
authors.forename: Mélissa
authors.initials: M
authors.lastname: Jourdain
authors.forename: Jean
authors.initials: J
authors.lastname: Meunier
authors.forename: Jean
authors.initials: J
authors.lastname: Sequeira
authors.forename: Jean-Marc
authors.initials: JM
authors.lastname: Boï
authors.forename: Jean-Claude
authors.initials: JC
authors.lastname: Tardif
mesh_terms: D002932:Cineangiography / Q000295:instrumentation*; D019560:Echocardiography, Three-Dimensional / Q000295:instrumentation* / Q000379:methods; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007089:Image Enhancement / Q000295:instrumentation*; D007090:Image Interpretation, Computer-Assisted / Q000295:instrumentation* / Q000379:methods*; D019047:Phantoms, Imaging; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014159:Transducers