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      Tracking the position and rotational orientation of a catheter using a transmit array system

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      Author
      Celik, H.
      Mahcicek, D. I.
      Senel, O.
      Wright, G. A.
      Atalar, Ergin
      Date
      2013
      Source Title
      IEEE Transactions on Medical Imaging
      Print ISSN
      0278-0062
      Publisher
      IEEE
      Volume
      32
      Issue
      4
      Pages
      809 - 817
      Language
      English
      Type
      Article
      Item 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 tracking
      inductively 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/11693/21009
      Published Version (Please cite this version)
      http://dx.doi.org/10.1109/TMI.2013.2247047
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      • Department of Electrical and Electronics Engineering 3524
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