Magnetic resonance imaging device and scanning method of magnetic resonance imaging

A magnetic resonance imaging and magnetic resonance scanning technology, applied in medical science, sensors, diagnostic recording/measurement, etc., can solve the problems of increasing signal preparation time, increasing patient radio frequency deposition, reducing, etc., and achieving the effect of suppressing pulsation artifacts

Active Publication Date: 2018-01-05
SHANGHAI UNITED IMAGING HEALTHCARE
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  • Abstract
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Problems solved by technology

The method of adding a saturation band is very versatile and compatible with a variety of imaging sequences. It does not require a special patient preparation process, but its disadvantage is that it increases the preparation time for signal generation and reduces a TR (repetition time, repetition time) The maximum number of layers that can be collected within a time
At the same time, the saturation pulse will also increase the patient's RF deposition

Method used

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  • Magnetic resonance imaging device and scanning method of magnetic resonance imaging
  • Magnetic resonance imaging device and scanning method of magnetic resonance imaging
  • Magnetic resonance imaging device and scanning method of magnetic resonance imaging

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Embodiment Construction

[0033] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0034] In the following description, many specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways than those described here, so the present invention is not limited by the specific embodiments disclosed below.

[0035] figure 1 It is the overall structure diagram of the magnetic resonance imaging equipment. refer to figure 1 As shown, the magnetic resonance imaging apparatus has a gantry 100 and a table 200 . The frame 100 has an opening 101, and a scanning part is arranged inside. The patient's body lies on the bed platform 200 and is moved into the opening 101 of the frame 100 for examination.

[0036] figure 2 It is the side view structu...

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Abstract

The invention provides a magnetic resonance imaging device and a scanning method of magnetic resonance imaging. The method comprises the following steps: providing a magnetic resonance pulse sequence,including excitation pulse and re-focusing pulse, the two pulses being configured according to one of the following methods, thickness of a scanning layer on which the excitation pulse acts being larger than standard layer thickness and layer thickness on which the re-focusing pulse acts being equal to the standard layer thickness, or thickness of a scanning layer on which the excitation pulse acts being equal to the standard layer thickness, and the layer thickness on which the re-focusing pulse acts being larger than the standard layer thickness; determining one or more scanning layers; according to liquid flowing directions in the scanning layers, determining scanning sequence of the scanning layers; and using the magnetic resonance pulse sequence to perform magnetic resonance scanningon the one or more scanning layers. The magnetic resonance imaging device and the scanning method of magnetic resonance imaging can reduce interference of an imaging sequence caused by pulsation.

Description

technical field [0001] The present invention mainly relates to magnetic resonance imaging equipment, in particular to a scanning method for magnetic resonance imaging. Background technique [0002] Magnetic resonance imaging (MRI, Magnetic Resonance Imaging) is an important application field of nuclear magnetic resonance, and now magnetic resonance imaging equipment has become one of the main tools for medical clinical diagnosis and basic scientific research. The basic principle of magnetic resonance imaging equipment is to place the human body in a special magnetic field, and use radio frequency pulses to excite the hydrogen nuclei in the human body, causing the hydrogen nuclei to resonate and absorb energy. After the radio frequency pulse is stopped, the hydrogen nucleus emits a radio signal at a specific frequency, and releases the absorbed energy, which is collected by an external receiver and processed by a computer to obtain an image. [0003] Magnetic resonance imagi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/055
Inventor 李兆鹏王超洪李国斌
Owner SHANGHAI UNITED IMAGING HEALTHCARE
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