ArticlePloS one2018
Percutaneous MR-guided interventions using an optical Moiré Phase tracking system: Initial results.
Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.
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Who cites it
5 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Democratization in abdominal ablation therapies: The impact of percutaneous robotic assistance on accuracy-A systematic review.Journal of robotic surgery · 2025Pooled it
- Robotic Assistance in Percutaneous Liver Ablation Therapies: A Systematic Review and Meta-Analysis.Annals of surgery open : perspectives of surgical history, education, and clinical approaches · 2024Article
- Minimal artifact actively shimmed metallic needles in MRI.Magnetic resonance in medicine · 2022Article
- Modeling of active shimming of metallic needles for interventional MRI.Magnetic resonance in medicine · 2020Article
- Integration and evaluation of a gradient-based needle navigation system for percutaneous MR-guided interventions.PloS one · 2020Article
Corrections and comments
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
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 interventional radiologists and four novices targeting rubber O-rings embedded in a custom-made phantom on a 3T wide-bore MRI system (80 punctures). The skin to target time, user error, system error and total error were analyzed. The mean skin to target time was 146s±68s with no statistically significant difference between experts and novices. A low mean user error (0.91mm±0.43mm), system error (0.53mm±0.27mm) and total error (0.99mm±0.47mm) was reached in all directions. No statistically significant difference in user error, system error and total error could be found between experts and novices. The presented tracking and image guidance system combined with the user interface offers continuous and interactive control of the imaging plane while puncturing in the magnet enabling accurate real-time feedback for both, experienced and non-experienced users.
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