舰载MRI系统研制

Design of shipborne magnetic resonance imaging system

目的:研制一种应用于远海确定性救治平台、大型保障舰船、远洋船舶的舰载MRI系统,以满足远海卫勤保障建设的需求。方法:采用常导电磁型MRI技术成像原理设计,整个系统由梯度系统、磁体系统、线圈系统、射频系统、谱仪控制系统以及成像系统六大部分组成,其中磁体系统采用C形开放式电磁磁体设计。并通过超高稳定度励磁系统、超高灵敏度信号探测系统、逸散磁场精准控制系统、舰船敏感装备振动控制系统、软件系统设计提升MRI系统性能,同时制定相关检测技术标准。结果:该系统实现了移动式成像功能,且生成图像快速、清晰,无逸散磁场,抗摇摆,环境适应性强,能够满足海上移动环境的使用要求。结论:该系统满足了远海医疗救治对MRI设备的需求,填补了国内空白,有利于提升海军远海卫勤保障能力。

To develop a magnetic resonance imaging （MRI） system for pelagic definitive treatment platforms,large support ships and ocean vessels. The system was designed based on normal electromagnetic MRI technology,which was composed of six parts of gradient system, magnet system, coil system, radiofrequency system, spectrum controlsystem and imaging system. The magnet system was developed with C-shaped open magnet, five systems were designed suchasa super -stability excitation system, a super -sensitivity signal detection system, a magnetic filed dissipation precisioncontrol system, a shipborne sensitive equipment vibration control system anda software system, and a set of technicaldetection standards was proposed. The developed MRI system realized mobile imaging, gained advantages in imagingvelocity, resolution, magnetic field dissipation control, ship bump resistance and environmental suitability, and thus could beused in marine mobile conditions. The developed MRI system meets the requirements of pelagic medicaltreatment, and contributes to improving pelagic medical support ability of Chinese navy.