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Dynamic tracking of a magnetic micro-roller using ultrasound phase analysis
- Source :
- Scientific Reports, Scientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
- Publication Year :
- 2021
-
Abstract
- Microrobots (MRs) have attracted significant interest for their potentialities in diagnosis and non-invasive intervention in hard-to-reach body areas. Fine control of biomedical MRs requires real-time feedback on their position and configuration. Ultrasound (US) imaging stands as a mature and advantageous technology for MRs tracking, but it suffers from disturbances due to low contrast resolution. To overcome these limitations and make US imaging suitable for monitoring and tracking MRs, we propose a US contrast enhancement mechanism for MR visualization in echogenic backgrounds (e.g., tissue). Our technique exploits the specific acoustic phase modulation produced by the MR characteristic motions. By applying this principle, we performed real-time visualization and position tracking of a magnetic MR rolling on a lumen boundary, both in static flow and opposing flow conditions, with an average error of 0.25 body-lengths. Overall, the reported results unveil countless possibilities to exploit the proposed approach as a robust feedback strategy for monitoring and tracking biomedical MRs in-vivo. ispartof: SCIENTIFIC REPORTS vol:11 issue:1 ispartof: location:England status: published
- Subjects :
- Science & Technology
Multidisciplinary
Contrast enhancement
Computer science
business.industry
Position tracking
Science
Ultrasound
Acoustics
Tracking (particle physics)
Article
Visualization
Multidisciplinary Sciences
Position (vector)
Science & Technology - Other Topics
Medicine
Computer vision
Artificial intelligence
Phase analysis
business
Phase modulation
Biomedical engineering
Subjects
Details
- ISSN :
- 20452322
- Database :
- OpenAIRE
- Journal :
- Scientific Reports
- Accession number :
- edsair.doi.dedup.....f115607e67c4bd0a8c707892a392ab0d
- Full Text :
- https://doi.org/10.1038/s41598-021-02553-z