Percutaneous MR-guided interventions using an optical Moire Phase tracking system: Initial results.

ABSTRACT: The aim of this study was the development and evaluation of a real-time guidance support using optical Moiré Phase Tracking (MPT) for magnetic resonance (MR) guided percutaneous interventions. A gradient echo sequence, capable of real-time position updates by the MPT system, was modified to enable needle guidance based on four rigidly attached MPT markers at the back of a needle. Two perpendicular imaging planes were automatically aligned along the calibrated needle and centered at its tip. For user guidance, additional information about the needle trajectory and the tip to target distance were added as image overlay. Both, images and guiding information were displayed on the in-room monitor to facilitate MR guided interventions. The guidance support was evaluated by four experienced inter

SUBMITTER: Kagebein U 

PROVIDER: S-EPMC6191114 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature