0.5T磁共振关节成像仪发射通道和梯度通道的设计
Design of transmit channel and gradient channel for the 0.5T MRI Instrument of joints
Abstract
磁共振成像(MagneticResonanceImaging,MRI)技术能够在快速、准确的获得机体内部图像的同时,几乎不对机体产生任何损伤,具有成像参数多、对比度高、无电离辐射伤害等优点,因此成为现代医学成像的主要方法之一。目前,磁共振成像仪已在各大医院和研究机构逐步普及,市场需求量巨大。但是长期以来,磁共振成像仪的核心技术被国外科技公司垄断,售价昂贵。而在国内,核磁仪器的研究和生产还处于起步阶段,方案不够成熟,性能相对较低。近年来,随着技术的进步和市场需求的改变,磁共振成像仪正不断向着小型化、数字化的方向发展。因此对磁共振成像仪的进一步研究具有重要意义。 本文以“0.5T磁共振关节成像仪... Magnetic resonance imaging technology can obtain the internal images of the body quickly and accurately, meanwhile, it almost does not produce any damage on the body, with the advantages of multiple imaging parameters, high contrast, non-ionizing radiation damage, etc. So it becomes one of the main methods of modern medical imaging. Currently, MRI instrument is universalized in major hospitals and...