Chinese Journal of Magnetic Resonance >
Design of a Data Transmission System for Magnetic Resonance Imaging Based on SerialLite II Protocol
Received date: 2022-08-01
Online published: 2023-03-13
In order to improve the signal-to-noise ratio of magnetic resonance imaging signal acquisition and reduce the interference in signal transmission, the popular technical solution is to place the signal acquisition device in a shielded room, close to the receiving coil. In response to the previous scheme, this paper proposed an optical fiber data transmission scheme based on SerialLite II protocol to solve the problem of parameter configuration of signal acquisition and high-speed transmission of echo data. The circuit takes field programmable gate array (FPGA) device and small form pluggable (SFP) optical fiber module as the core of new instrument and realizes the download of configuration parameters of signal acquisition and the upload of echo data based on SerialLite II protocol. In order to facilitate programming, a NIOS II soft-core processor is constructed in FPGA to complete the sending, receiving and configuration of the parameters of the signal acquisition module. An experimental prototype was developed, and data transmission was tested. The results showed that this scheme can achieve high-speed data transmission. It takes only about 364.2 μs to transmit 64 K bytes of data through a 30-meter optical fiber. The scheme is reliable and has low-delay.
Tianning ZHANG , Zhanzhi LEI , Liang XIAO . Design of a Data Transmission System for Magnetic Resonance Imaging Based on SerialLite II Protocol[J]. Chinese Journal of Magnetic Resonance, 2023 , 40(2) : 179 -191 . DOI: 10.11938/cjmr20223012
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