Towards subject-specific models of the dynamic heart for image-guided mitral valve surgery. Academic Article uri icon

Overview

abstract

  • Surgeons need a robust interventional system capable of providing reliable, real-time information regarding the position and orientation of the surgical targets and tools to compensate for the lack of direct vision and to enhance manipulation of intracardiac targets during minimally-invasive, off-pump cardiac interventions. In this paper, we describe a novel method for creating dynamic, pre-operative, subject-specific cardiac models containing the surgical targets and surrounding anatomy, and how they are used to augment the intra-operative virtual environment for guidance of valvular interventions. The accuracy of these pre-operative models was established by comparing the target registration error between the mitral valve annulus characterized in the pre-operative images and their equivalent structures manually extracted from 3D US data. On average, the mitral valve annulus was extracted with a 3.1 mm error across all cardiac phases. In addition, we also propose a method for registering the pre-operative models into the intra-operative virtual environment.

publication date

  • January 1, 2007

Research

keywords

  • Image Interpretation, Computer-Assisted
  • Imaging, Three-Dimensional
  • Magnetic Resonance Imaging
  • Mitral Valve
  • Surgery, Computer-Assisted
  • User-Computer Interface

Identity

Scopus Document Identifier

  • 84883833449

Digital Object Identifier (DOI)

  • 10.1007/978-3-540-75759-7_12

PubMed ID

  • 18044557

Additional Document Info

volume

  • 10

issue

  • Pt 2