Magnetic resonance imaging spectrometer based on high-speed interconnection serial bus

Abstract

The invention discloses a magnetic resonance imaging spectrometer based on a high-speed interconnection serial bus. The magnetic resonance imaging spectrometer based on the high-speed interconnection serial bus comprises an industrial personal computer, a system control module and signal processing modules. The industrial personal computer comprises a computer mainboard and an image processing card. The system control module receives magnetic resonance collecting data, the data are uploaded to the computer mainboard of the industrial personal computer through a first interconnection bus, meanwhile, the system control module is responsible for compiling and generating sequence control words, and the sequence control words are provided for the signal processing modules. The signal processing modules decode the sequence control words to obtain a sequence time sequence and an action command, and the action command is executed according to the sequence time sequence. In the process of executing the sequence, the system control module can synchronize the starting point of the sequence time sequence, and the signal processing modules are coordinated to complete respective hardware functions. The magnetic resonance imaging spectrometer solves the reliability problem in the existing spectrometer technology, and therefore the spectrometer can be applied to the field of medical devices with the high stability and the high electromagnetic compatibility.

Description

technical field [0001] The invention relates to the field of magnetic resonance imaging, in particular to a magnetic resonance imaging spectrometer based on a high-speed serial interconnection bus. Background technique [0002] Magnetic Resonance Imaging (MRI) has always been a popular research and application field in the direction of Nuclear Magnetic Resonance (NMR). Since Lauterbur proposed to use linear gradient magnetic field for spatial encoding in 1973, and obtained magnetic resonance images experimentally for the first time, magnetic resonance imaging has not only become an important tool for medical imaging diagnosis, but also has been widely used in physics, chemistry, life science and materials science. Wide range of applications. [0003] The magnetic resonance imaging system, as the main body carrying the magnetic resonance imaging technology and its development and application, has a large and complex composition and is distributed in different spatial regions...

AI Technical Summary

Problems solved by technology

However, with the continuous development of imaging technology, the number of receiving and transmitting channels continues to increase, and the data bandwidth to be processed continues to increase. It is difficult for this integrated structure spectrometer based on parallel buses to meet such requirements.

Because parallel buses require time-division multiplexing or bus sharing, this limits the throughput of spectrometer data transfers

In addition, the number of data, address and control signals in the parallel bus will increase with the increase of bus frequency and width, which means that the device needs more pins, resulting in higher power consumption; the timing constraints of the data interface are more difficult , leading to increased system instability; the design and wiring of circuit boards are more complex, leading to a corresponding increase in production and manufacturing costs

At the same time, the parallel bus uses a large number of single-ended digital signals, which will cause noise (Noise), inter-channel crosstalk (Crosstalk) and electromagnetic interference (EMI) problems

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