Tracking the position and rotational orientation of a catheter using a transmit array system
Author
Celik, H.
Mahcicek, D. I.
Senel, O.
Wright, G. A.
Atalar, Ergin
Date
2013Source Title
IEEE Transactions on Medical Imaging
Print ISSN
0278-0062
Publisher
IEEE
Volume
32
Issue
4
Pages
809 - 817
Language
English
Type
ArticleItem Usage Stats
122
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94
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Abstract
A new method for detecting the rotational orientation and tracking the position of an inductively coupled radio frequency (ICRF) coil using a transmit array system is proposed. The method employs a conventional body birdcage coil, but the quadrature hybrid is eliminated so that the two excitation channels can be used separately. The transmit array system provides RF excitations such that the body birdcage coil creates linearly polarized and changing RF pulses instead of a conventional rotational forward-polarized excitation. The receive coils and their operations are not modified. Inductively coupled RF coils are constructed on catheters for detecting rotational orientation and for tracking purposes. Signals from the anatomy and from tissue close to the ICRF coil are different due to the new RF excitation scheme: the ICRF coil can be separated from the anatomy in real time, and after doing so, a color-coded image is reconstructed. More importantly, this novel method enables a real-time calculation of the absolute rotational orientation of an ICRF coil constructed on a catheter. © 1982-2012 IEEE.
Keywords
Catheter trackinginductively coupled radio-frequency (ICRF) coil
Catheter tracking
Interventional
Radio frequencies
Rotational orientation
Transmit arrays
Electromagnetic induction
Tissue
Catheters
Catheters
Computer Simulation
Equipment Design
Image Processing, Computer-Assisted
Magnetic Resonance Imaging
Rabbits
Radio Waves
Permalink
http://hdl.handle.net/11693/21009Published Version (Please cite this version)
http://dx.doi.org/10.1109/TMI.2013.2247047Collections
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