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MRI-Compatible Intensity-Modulated Force Sensor for Cardiac Catheterization Procedures.
- Source :
-
IEEE Transactions on Biomedical Engineering . 03/01/2011, Vol. 58 Issue 3, p721-726. 6p. - Publication Year :
- 2011
-
Abstract
- This paper presents a novel, magnetic resonance imaging (MRI)-compatible, force sensor suitable for cardiac catheterization procedures. The miniature, fiber-optic sensor is integrated with the tip of a catheter to allow the detection of interaction forces with the cardiac walls. The optical fiber light intensity is modulated when a force acting at the catheter tip deforms an elastic element, which, in turn, varies the distance between a reflector and the optical fiber. The tip sensor has an external diameter of 9 Fr (3 mm) and can be used during cardiac catheterization procedures. The sensor is able to measure forces in the range of 0–0.85 N, with relatively small hysteresis. A nonlinear method for calibration is used and real-time MRI in vivo experiments are carried out, to prove the feasibility of this low-cost sensor, enabling the detection of catheter-tip contact forces under dynamic conditions. [ABSTRACT FROM PUBLISHER]
Details
- Language :
- English
- ISSN :
- 00189294
- Volume :
- 58
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Biomedical Engineering
- Publication Type :
- Academic Journal
- Accession number :
- 58578425
- Full Text :
- https://doi.org/10.1109/TBME.2010.2095853