Gradient waveform rate automatic adaptive output method and magnetic resonance system

Abstract

The invention discloses a gradient waveform rate automatic adaptive output method and a magnetic resonance system, and are applied to the technical field of computers, the problem that the gradient waveform signal rate of magnetic resonance sequence design in the prior art cannot be flexibly configured according to magnetic resonance application is solved. According to the invention, a nuclear magnetic resonance sequence design gradient waveform rate is matched into an analog-to-digital converter conversion rate of a gradient waveform signal generator or a uniaxial gradient waveform signal data transmission rate of a digital communication interface with a digital gradient amplifier; the gradient waveform rate is designed according to the nuclear magnetic resonance sequence; the technical effects that the method is not restrained by the internal operation rate of a field programmable logic device of the gradient waveform signal generator, and meanwhile the conversion rate of an analog-to-digital converter of the gradient waveform signal generator or the uniaxial gradient waveform signal data transmission rate of a digital communication interface with a digital gradient amplifier cannot be restrained are achieved.

Description

Technical field [0001] The invention belongs to the field of computer technology, and particularly relates to a technology for automatically adapting gradient waveform signal rates in nuclear magnetic resonance imaging. Background technique [0002] MRI is a commonly used imaging technique in modern medicine. Nuclear magnetic resonance systems include magnet systems, gradient systems, radio frequency systems, signal acquisition systems, and image reconstruction systems. Among them, the gradient system is used to provide linearity to the nuclear magnetic resonance system to meet the requirements, and can quickly switch the gradient magnetic field, superimposed on the main magnetic field, to realize the spatial positioning of the imaging voxel. The gradient system includes a gradient waveform generator, a gradient amplifier, and a gradient coil. [0003] In a magnetic resonance imaging system, in order to obtain accurate image information, it is essential to accurately locate the s...

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Problems solved by technology

[0009] In order to solve the problem that the gradient waveform signal rate of the magnetic resonance sequence design in the prior art cannot be flexibly configured according to the magnetic resonance application, the present invention proposes a method, device and magnetic resonance system in which the gradient waveform signal rate can automatically adapt to the output; Invented to accumulate the remainder of the current point after the re-matching rate into the accumulator of the next point

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