An MR-Compatible Stage for Respiratory Motion Emulation

We present the development of a system that physically emulates respiratory motion for phantoms under Magnetic Resonance Imaging (MRI). The system is designed to be inherently MR-compatible—with no ferrous materials or electromagnetic actuators present in the exam room—and uses hydrostatic actuators...

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Bibliographic Details
Published in:IFAC-PapersOnLine 2017-07, Vol.50 (1), p.6073-6078
Main Authors: Simonelli, James, Lee, Yu-Hsiu, Mikaiel, Samantha, Chen, Cheng-Wei, Li, Xinzhou, Sung, Kyung, Lu, David, Wu, Holden, Tsao, Tsu-Chin
Format: Article
Language:English
Subjects:
hydraulic actuators
learning control
Mechatronic systems
medical applications
robotic manipulators
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Summary:We present the development of a system that physically emulates respiratory motion for phantoms under Magnetic Resonance Imaging (MRI). The system is designed to be inherently MR-compatible—with no ferrous materials or electromagnetic actuators present in the exam room—and uses hydrostatic actuators to control motion of the phantom. MR-compatibility of the system is verified through both signal-to-noise ratio (SNR) and imaging distortion tests, and several control strategies are then implemented to achieve tracking of prerecorded respiratory motion profiles obtained from a human subject.
ISSN:2405-8963
2405-8963
DOI:10.1016/j.ifacol.2017.08.1381