磁共振成像系统

OpenMark2000磁共振成像系统中，采用正交合成技术，研制出的正交头线圈，较常规螺线管线圈的信噪比提高20%以上。

By using Quadrature combining technology in Open Mark 2000 MRI system of An Ke Inc. , we developed Quadrature head coil which is better than normal solenoid coil by 20 % in signal to noise ratio .

目前医学应用中，磁共振成像系统多为传统的磁体包围样品结构，这种MRI系统结构的特点是成像区域体积大、磁场均匀度高、成像速度快。

Now , in medicine applications , most MRI systems are traditional shape whose magnets surround the imaging region . The character of this kind of MRI system is that the imaging region volume is big with a high uniformity of magnetic field , and the imaging speed is rapid .

MRI检查使用GEsigna1.5Tesla超导磁共振成像系统。

MR scanning was performed by GE Signa super - conducting magnetic resonance imaging system ( 1.5 Tesla ) .

方法收集我院1998～2004年间行骨关节检查并确诊有关节软骨损伤和松质骨水肿的病例72例，MR扫描采用MAGNETOMVISONplus1.5T超导型磁共振成像系统。

Methods We retrospectively reviewed the MRI features of 72 patients with cancellous bone edema and cartilaginous injury . MAGNETOM VISON plus 1.5 T superconduct magnetic resonance imaging system ( SIEMENS ) was used for MR scan .

威达LMW-1000型磁共振成像系统与WINDOWS98微机的网络连接

WEIDA LMW-1000 Magnetic Resonance Imaging System Communication with WINDOWS 98 Computer

方法选择5名健康志愿者，电针刺激光明（GB37）、外关（SJ5）组穴，采用Siemens公司Sonata1.5T磁共振成像系统进行全脑功能扫描。

Methods Electroacupuncture stimulation was performed at Guangming ( GB37 ) and Waiguan ( SJ5 ) acupoints in 5 healthy subjects , who had been scanned with Sonata 1.5T MRI ( Siemens ) .

在1.5T磁共振成像系统的双调谐四端环鸟笼线圈的设计中，仿真和实验结果的偏差小于2%，即等效电路法可以高效地获得足够近似的分析结果。

Good agreement between the theoretical analysis and experimental results for the ~ 1H / ~ 31P four-ring birdcage coil for a 1.5 T MRI system shows that the generalized equivalent circuit model is acceptably accurate for simulating the performance of double-tuned RF coils .

介绍威达LMW-1000型磁共振成像系统与WINDOWS98微机的网络通讯的两种方法，这对LMW-1000型磁共振成像系统操作界面改造有一定实用价值。

This paper introuduces two ways of WEIDA LMW-1000 Magnetic Resonance Imaging System 's communication with WINDOWS 98 computer . It has a practical value to the improvement of the system 's operation interface .

磁共振成像系统中梯度线圈设计的一种新的长度约束方案

A new length constraint method for MRI gradient coil design

磁共振成像系统中低阶平板式匀场线圈的设计

The design of lower-order tabulate shim coils for MRI system

磁共振成像系统的部件技术研究

Research on Components of Magnetic Resonance Imaging System

数控电位器在磁共振成像系统中的应用

Digitally Controlled Potentiometer and Application in MRI System

在磁共振成像系统中，梯度磁场用来对成像物体进行空间编码。

Imaging objects are spatially encoded by gradient magnetic fields in magnetic resonance imaging systems .

本文介绍一种用于磁共振成像系统中处理涡流非线性影响的方法。

This paper reports a method of processing the nonlinear effect of eddy current in MRI system .

射频线圈是磁共振成像系统中拾取信号的核心元件。

Radio-frequency ( RF ) coils are used to pick up signals in the magnetic resonance imaging ( MRI ) systems .

锁定放大是根据互相关原理从噪声中恢复信号幅度的一种常用技术，将它用于磁共振成像系统微弱信号的检测具有其独到的优势。

Lock-in amplify is a widely used technology which can retrieve signal amplitude from background noise according the cross correlation principle .

目的：引入一种新方法预测磁共振成像系统对人体的外周神经刺激。

The time varying gradient field of Magnetic Resonance Imaging ( MRI ) system will result in peripheral nerve stimulation on human bodies .

基于磁共振成像系统的头部三维电阻抗成像技术研究感应电流电阻抗断层成像的数据采集技术

Magnetic Resonance Electrical Impedance Tomography for Human Head Conductivity Distribution Measurement ; Research on Data Acquisition Technique for Induced Current Electrical Impedance Tomography

磁共振成像系统是数字医疗核心设备中的重要产品，在近20年的时间里得到了快速的发展。

Magnetic resonance image system is the important product in digital medical nuclear equipments , which has been dramatic developing during last 20 years .

针对全开放磁共振成像系统的特点，提出了一种单平面梯度线圈的新型设计方法。

Aiming at the feature of fully open magnetic resonance imaging system , a new approach to the design of uniplanar gradient coils was proposed .

为了解决磁共振成像系统中双调谐射频线圈的设计问题，提出了一个通用等效电路模型。

A generalized equivalent circuit model was developed for both single-tuned and double-tuned radio-frequency ( RF ) coils for Magnetic Resonance Imaging ( MRI ) systems .

为一台03T磁共振成像系统实际制作了一个发射线圈，并给出解耦电路的调试结果。

A prototype quadrature coil was constructed for a 0.3 T permanent magnet open MRI system , and the experimental results of the decouple circuit are presented .

系统地介绍了用于磁共振成像系统中具有轴向磁场的圆柱型表面梯度线圈的设计与优化。

A general method for designing magnetic field gradient coils on a cylindrical surface with an axial magnetic field to be used in NMR imaging is suggested and developed .

2名单纯性肥胖胃肠实热型患者，电针刺激其右侧足三里、内庭穴，采用美国马可尼公司Eclipse1.5T磁共振成像系统进行全脑功能扫描。

2nd , 2 simple obesity volunteers , electro-acupuncture to stimulate the right side of its Zusanli , Neiting , uses American Marconi Corporation Eclipse 1.5T magnetic resonance imaging system to scan the entire brain function scanning .

磁共振成像系统的组成及工作机制。通过控制子系统的工作流程阐述了系统各部分的作用及关系，并重点分析了射频子系统，讲述了数字接收机前级的射频线圈的设计。

MRI system overview : Describe the sub-systems of MRI system and their relationships based on the workflow of the controlling sub-system , emphasizing The RF sub-system and RF coils which is in front of RF Receiver . 3 .

同时，低场强的开放式磁共振成像系统以其不断完善的功能和低投资成本而日益受医学界重视，高、中场的功能不断被移植到低场系统。

On the other hand , for the continually improvement in function and low investment , low-field open magnetic resonance imaging systems are increasingly subject to medical attention , and a lot of functions of high , middle strength field system have been transferred to low-field system .

快速动态自动匀场技术在永磁磁共振成像系统中的实现

A Rapid Automated Shimming Method on Permanent Magnet MRI System

开放式永磁磁共振成像系统中的平板式正交发射线圈的设计

Design of a flat quadrature RF transmit coil for permanent magnet open MRI systems

永磁磁共振成像系统中磁体极板尺寸与梯度线圈的关系

The effects of gradient coil on pole size of magnet for permanent MRI system

永磁磁共振成像系统磁体的梯度匀场方法研究

Gradient Shimming in Magnetic Resonance Imaging Magnet