Method and device for automated generation of a formal description of a magnetic resonance system measurement sequence
一种测量序列、形式描述的技术,应用在使用核磁共振图像系统进行测量、磁共振测量、使用磁变量测量等方向,能够解决易出错、费时等问题
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[0104] figure 1 The principle structure of the MR scanner 4 with its main components is shown. In order to examine the body by means of MR imaging, different time-variable magnetic fields whose temporal and spatial characteristics are precisely tuned to one another are incident on the body and this leads to a resonant response to the incident radiofrequency energy or RF energy .
[0105] A magnet 450 , for example a superconducting magnet usually cooled by a liquid coolant, is arranged in the radio-frequency-shielded measuring chamber 3 . The magnet 450 has a cylindrical opening and produces a static main magnetic field 47 with a field strength typically in the range of 0.1 Tesla to 3 Tesla or higher. The main magnetic field 47 is highly homogeneous, typically eg in the range of a few ppm for a volume with a diameter of 15 cm. The body or body part to be examined ( figure 1 not shown in ) is placed on the patient couch 49 and is positioned in the homogeneous region of the ...
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