NDLI: Reconfigurable multi-channel RF crossbar switch matrix for MRI receiver front-end

Content Provider	IET Digital Library
Author	Lee, H. L.
Abstract	In this Letter, a highly reconfigurable crossbar transmission line switch matrix for magnetic resonance imaging (MRI) system is proposed. Unlike the conventional M × N crossbar switch configuration, the proposed structure can manipulate 2M × N matrix without doubling the area occupancy. Also, the proposed structure includes the signal loss-compensation circuitry based on inductor banks to enhance signal-to-noise ratio (SNR). Thus, for any required numbers of input and output channels, the proposed structure can reduce the overall size, the number of required component, and even increase the quality of MR images by SNR enhancement. The proposed structure was implemented and verified at 4-Tesla (170 MHz) MR system through the comparison of RF path loss, SNR and phantom test image qualities.
Starting Page	380
Ending Page	381
Page Count	2
ISSN	00135194
Volume Number	53
e-ISSN	1350911X
Issue Number	Issue 6, Mar (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/el/53/6
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/el.2016.4489
Journal	Electronics Letters
Publisher Date	2017-02-08
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Algebra Biology And Medical Computing Biomedical Magnetic Resonance Imaging Biomedical MRI Computer Vision And Image Processing Technique Frequency 170 MHz Graph Theory Image Enhancement Inductor Inductor Bank Inductors And Transformer Magnetic Flux Density 4 Tesla Magnetic Resonance Imaging System Matrix Algebra Medical Image Processing Medical Magnetic Resonance Imaging And Spectroscopy MRI Receiver Front-end Optical, Image And Video Signal Processing Patient Diagnostic Method And Instrumentation Phantom Test Image Quality Radio Link And Equipment Radio Receiver Reconfigurable Crossbar Transmission Line Switch Matrix Reconfigurable Multichannel RF Crossbar Switch Matrix RF Path Loss Set Theory Signal Loss-compensation Circuitry Signal to Noise Ratio SNR Enhancement Spectroscopy Wireless Channel
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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