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

Date
2013
Advisor
Instructor
Source Title
IEEE Transactions on Medical Imaging
Print ISSN
0278-0062
Electronic ISSN
Publisher
IEEE
Volume
32
Issue
4
Pages
809 - 817
Language
English
Type
Article
Journal Title
Journal ISSN
Volume Title
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.

Course
Other identifiers
Book Title
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
Citation
Published Version (Please cite this version)