Breath-hold imaging method guided by magnetic resonance gradient sound
A technology of magnetic resonance imaging and imaging methods, applied in the fields of application, medical science, sensors, etc., to achieve the effect of reducing hardware costs, being simple and easy to implement, and improving imaging quality
Pending Publication Date: 2019-09-20
KANGDA INTERCONTINENTAL MEDICAL EQUIP CO LTD
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[0008] The technical problem to be solved by the present invention is to provide a breath-hold imaging method guided by magnetic resonance gradient sound, which solves the problem that other hardware is needed to remind the examinee to hold his breath during the current magnetic resonance breath-hold scanning process
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[0025] The magnetic resonance imaging system adopts an existing commercially available product, the model is Philips Multiva 1.5T, and the magnetic resonance imaging system scans and images the subject according to the new imaging scanning sequence with prompts of breath-hold start and breath-hold end. A method of breath-hold imaging guided by magnetic resonance gradient sound, which includes the following steps:
[0026] (1) Set the scanning sequence of the magnetic resonance imaging system to perform imaging scanning on the subject, and divide the total imaging scanning sequence into multiple breath-holding imaging scanning sequences according to the time required for each breath-holding scanning for 15 to 20 seconds;
[0027] (2) Before each breath-holding imaging scan sequence, add a breath-holding start prompt gradient sequence, and add a breath-holding end prompt gradient sequence after each imaging scan sequence. The combination of the three constitutes a breath-hold ima...
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The invention discloses a breath-hold imaging method guided by magnetic resonance gradient sound, and belongs to the technical field of magnetic resonance imaging. The breath-hold imaging method includes the following steps: (1) according to the time required for each breath-hold scanning, a total imaging scanning sequence is divided into multiple breath-hold imaging scanning sequences; (2) a breath-hold starting prompt gradient sequence is added before each breath-hold imaging scanning sequence, and a breath-hold ending prompt gradient sequence is added after each image scanning sequence; (3) before scanning, a subject begins to lean sounds during operation of breath-hold starting prompt gradient and breath-hold ending prompt gradient; and (4) according to the new imaging scanning sequence, the subject is subjected to scanning imaging by the magnetic resonance imaging system. Only one gradient sequence which can make a gradient coil emit a specific sound needs to be added at each of the starting part and the end part of each imaging scanning sequence, and the hardware cost of the breath-hold scanning method is effectively reduced.
Description
technical field [0001] The invention relates to a breath-hold imaging method guided by magnetic resonance gradient sound, belonging to the technical field of magnetic resonance imaging. Background technique [0002] Magnetic resonance imaging (MRI), as an effective medical imaging diagnosis method, has been widely used in the medical field. The advantage of magnetic resonance imaging is that the soft tissue contrast is excellent, the imaging is clear, and multi-parameter and multi-contrast imaging can be realized. Because the proton density and resonance relaxation characteristics of normal tissue and lesion tissue will be different, and magnetic resonance can detect the existence of these differences very well, and quantify them, providing a strong diagnostic basis for clinical medicine. [0003] However, MRI scanning also has its disadvantages: the scanning time is long during imaging, so it is susceptible to artifacts caused by motion. Especially in the scanning of abdo...
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IPC IPC(8): A61B5/055
CPCA61B5/055A61B5/7405
Inventor 田洪君段浩莫继江
Owner KANGDA INTERCONTINENTAL MEDICAL EQUIP CO LTD