Pneumatic actuated robotic assistant system for aortic valve replacement under MRI guidance

Ming Li, Ankur Kapoor, Dumitru Mazilu, Keith A. Horvath

Research output: Contribution to journalArticle

Abstract

We present a pneumatic actuated robotic assistant system for transapical aortic valve replacement under MRI guidance in a beating heart. This is a minimally invasive procedure that is currently performed manually inside the MRI bore. A robotic assistance system that integrates an interactive real-time MRI system, a robotic arm with a newly developed robotic valve delivery module, as well as user interfaces for the physician to plan the procedure and manipulate the robot, would be advantageous for the procedure. An Innomotion arm with hands-on cooperative interface was used as a device holder. A compact MRI compatible robotic delivery module was developed for delivering both balloon-expandable and self-expanding prostheses. A compact fiducial that can be placed close to the volume of interest and requires a single image plane was used for image-based robot registration. The system provides different user interfaces at various stages of the procedure. We present the development and evaluation of the components and the system in ex-vivo experiments.

Original languageEnglish (US)
Article number5611582
Pages (from-to)443-451
Number of pages9
JournalIEEE Transactions on Biomedical Engineering
Volume58
Issue number2
DOIs
StatePublished - Feb 2011
Externally publishedYes

Fingerprint

Pneumatics
Magnetic resonance imaging
Robotics
User interfaces
Robots
Robotic arms
Balloons
Prosthetics
Experiments

Keywords

  • MRI robot
  • real-time MRI (rtMRI)-guided intervention
  • transapical aortic valve replacement

ASJC Scopus subject areas

  • Biomedical Engineering

Cite this

Pneumatic actuated robotic assistant system for aortic valve replacement under MRI guidance. / Li, Ming; Kapoor, Ankur; Mazilu, Dumitru; Horvath, Keith A.

In: IEEE Transactions on Biomedical Engineering, Vol. 58, No. 2, 5611582, 02.2011, p. 443-451.

Research output: Contribution to journalArticle

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