Current three dimensional (30) vessel reconstruction using intravascular ultrasound (IVUS) pull buck is limited by the lack of information on the real vessel curvatures, because the movement of the catheter is assumed to proceed along a straight path. To overcome this limitation a method (ANGUS) has been developed to combine coronary angiography with data obtained by IVUS [I]. The IVUS data represent a cylindrical stack of crosssections. A least-square@ approximation is used to reconstruct the 3 0 path of the catheter axis from two biplane X-ray images, after which the stack of IVUS contours is wrapped around this 3 0 catheter centerline. In order to establish the correct rotational position of the stack around the centerline, use is made of 'landmarks' which are visible in angiograms, as well as in a simulation of these angiograms derived from the reconstructed 3 0 contour. The combination of ANGiography and intravascular UltraSound (ANGUS) is promising and provides a unique method of three-dimensional reconstruction of coronary geometry.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.