The SIR increased with Fov, flip angle, matrix, angle of slice position. 结果:随着翻转角、视野、矩阵、层面定位角度的增大,SIR值增大。
The relationship between signal intensity of flowing protons and flip angle in flash 流动质子NMR信号强度与梯度回波中翻转角间的关系
A mathematical formula of the relation between longitudinal relaxation or transverse relaxation and the flip angle of magnetization vector was deduced and its programme was designed. 首先推导出纵向弛豫和横向弛豫与磁化强度矢量偏转角关系的数学表达式。
Slip on the crustal discontinuity plane with small flip angle. Systematic and alternative change of the mechanisms was observed. 地壳内低倾角间断面上的滑动,它们随时间交替和系统地变化。
A method of quickly selecting appropriate flip angle was provided. 在此基础上编制出相应的程序,提供快速选取合适的磁化强度矢量偏转角的方法。
In this paper, optimal radio freqency ( RF) flip angle and relaxation delay time of the CRAZED pulse sequence for intermolecular multiple quantum coherences ( iMQCs) of different order n were investigated. 对检测分子间多量子相干信号的CRAZED脉冲序列的最佳射频脉冲翻转角及延迟时间进行了探讨。
Quickly Selecting Flip Angle of Magnetization Vector and Calculative Method 磁化强度矢量偏转角的快速选取及计算方法
Purpose: To select a fast accurate method of magnetic resonance portography ( MRP) with the optimal flip angle, and to minimize respiratory motion artifact. 目的:通过改变翻转角试图优选出一种最佳翻转角的快速准确的磁共振门静脉血流成像方法,并尽可能消除呼吸运动的影响。