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- MRI examination was performed with a 1.0 tesla superconductive magnetic field, and processed with turbo spin echo sequence. MRI平扫和增强检查在 1.;0T超导磁场中完成;采用快速自旋回波序列。
- Methods 111 cases were studied using FLAIR and conventional T2WI of fast spin echo(FSE) and DWI sequence on 0.35T permanent magnet MRI system. 方法应用0.;35T永磁MRI系统;对111例脑部MRI受检者分别使用FLAIR与常规FSE T2WI及DWI序列进行对比分析。
- Objective To discuss the value of fluid attenuated inversion recovery (FLAIR) and fast spin echo (FSE) in MRI of the brain. 目的探讨脑脊液衰减翻转恢复(FLAIR)与快速自旋回波(FSE)在颅脑的应用对比价值。
- Abstract: Objective To investigate the diagnostic value of conventional spin echo (SE) in combination with cine MRI in congenital heart disease. 摘 要: 目的 探讨常规自旋回波(SE)结合电影MRI对先天性心脏大血管畸形的诊断价值。
- It can also simulate the speed about distance changing and adjust the pulse width of echo signal. 此外,本目标回波距离处理器还可以仿真距离变化速率,调节回波脉冲的宽度。
- Naganawa S,Koshikawa T,Fukatsu H,et al.Fast recovery 3D fast spin echo MR imaging of the inner ear at 3T[J].Am J Neuroradiol,2002,23:299. 孔祥泉;刘定西;徐海波;等.;国人内听道及内耳膜迷路的正常MR解剖研究[J]
- SPGA algorithm compensates the envelope and phase of the echo signal which has not be corrected range migration. SPGA算法利用估计得到的侧摆对距离徙动校正前的回波数据进行包络和相位补偿。
- Describes a distance simulator of echo signal used in radio frequency simulation system. 描述了射频仿真系统中使用的目标回波距离处理器。
- Because the truths of the echo signal simulation are directly influenced by the accuracy of the simulation algorithms. 模拟算法的优劣直接影响着模拟产生的回波信号的真实性。
- MRDTI sequence included spin echo sequence T1-weight image(SE T1WI),fast spine echo sequence T2-weighted image(FSE T2WI)and fourier acquired steady state sequence(FAST). MRDTI选用SE T1WI、FSE T2WI、FAST(fourier acquired steady state,FAST)序列。
- Radio frequency simulation system(RFSS) is mainly used to simulate echo signal of radio frequency target in laboratory. 射频仿真系统(RFSS)主要是用在实验室里模拟空中射频目标信号。
- Methods We performed DWI,fluid attenuated inversion recovery,fast spin echo T 2 weighted MRI,3D TOF MRA in 52 patients with hyperacute,acute,subacute,chronic stroke. 方法 对 5 2例超急性期、急性期、亚急性期、慢性期的患者行 DWI、快速自旋回波 T2 WI、FL AIR及 3 D TOF法磁共振血管成像检查。
- Pre polarizing and spin echo method are often used in NML tool, and the magnetic field used has been changed from primitive earth magnetic field to man made magnetic field. 核磁测井仪中多采用预极化方式或自旋回波法,所用的磁场已从最初的地磁场演变到现在所用的各种人工磁场,所用的测量方式要与采用的磁场设计相适应。
- Conclusion The proper sequence for function MRI of pulmonary parenchyma was single shot turbo spin echo(SSh/TSE)with centrically-reordered phase encoding scheme and... 结果选择的序列是单激发快速自旋回波序列和单激发反转快速自旋回波序列。
- A way to measuring the vector miss distance using echo signal from Multiple Frequency CW-Tracking Radar is described in this paper. 本文详细介绍了利用多频连续波测量雷达回波信号进行脱靶量测量的方法。
- Miss distance parameters are estimated by matching pursuit algorithm to search the basis function which best matches the echo signal. 通过匹配追踪算法寻找与回波信号最匹配的基函数来确定脱靶量参数。
- Adaptive MTI techniques used in radar signal processing,that is,moving clutter suppression to radar echo signal is discussed. 讨论雷达信号处理中的自适应动目标显示技术,即雷达回波信号中的运动杂波抑制问题。
- The imaging fundamental of SAR was expatiated and the raw echo signal model of complex three-dimensional ground object target was established. 阐述了复杂三维地物目标模型的建立方法,分析了回波信号的结构并且讨论了成像仿真参数。
- Based on non-Gaussian AR-model, parametric bi-spectrum method is used to extrapolate radar echo signal; then the ISAR imaging has been done. 利用双谱分析方法,用非高斯AR模型对雷达目标回波信号进行参数化双谱估计,并在此基础上对数据进行外推处理,然后对数据进行ISAR成像。
- An ocean echo signal simulation system for verification and calibration of FMICW high frequency ground wave radar is presented in this paper. 该文给出一种调频中断连续波(FMICW)高频地波海况监测雷达的仿真模拟检验系统。