梯度回波

在此基础上对梯度回波成象序列进行总结和分类。

Finally a classification and summary are proposed for these GRE sequences .

四肢骨关节MR梯度回波在半月板损伤检查中的应用

Dedicated MRI gradient echo used in meniscus injury diagnosis

基于MR三维梯度回波与扩散加权成像序列的脑表面重组技术比较

Three-dimensional reconstruction of brain surface anatomy : technique comparison between flash and diffusion-weighted imaging

膝关节软骨MRI梯度回波序列的参数优化

Optimal parameters of MRI different FE sequences of knee articular cartilage

MRI梯度回波T2加权序列对脑内海绵状血管瘤的诊断价值

The Value of Gradient Echo T_2WI Sequence in Detecting Cerebral Angioma

梯度回波化学位移MRI诊断脂肪肝的研究

The Study of Gradient-echo Chemical Shift MRI in Diagnosing Fatty Liver

脑膜瘤相对血流量MR定量检测：梯度回波与平面回波序列法的比较

MR quantitative measurement of relative blood volume in patients with meningioma : comparison of gradient echo and echo planar imaging sequences

采用快速小角度激发扰相梯度回波序列（FLASH）行动态增强扫描。

Dynamic MR contrast-enhanced imaging was done by FLASH 3D spoiled gradient echo sequence .

对3D快速梯度回波扫描序列获得膝关节各关节软骨3D图像，利用最大信号强度投影法（MIP）进行3D重建。

The articular cartilages on 3D images were reconstructed using maximum intensity projection ( MIP ) .

流动质子NMR信号强度与梯度回波中翻转角间的关系

The relationship between signal intensity of flowing protons and flip angle in flash

肝脏脂肪浸润：应用临床MR系统的双相T1梯度回波进行检测和分级

Fatty infiltration of the liver : Detection and grading using dual T1 gradient echo sequences on clinical MR system

目的评价三维梯度回波（3DSPGR）增强MRA对颅脑巨大动脉瘤的应用价值。

Objective To evaluate 3D SPGR MRA in diagnosing large intracranial aneurysm .

目的：利用完全平衡快速梯度回波（BALANCEFFE）序列探讨其在腹部磁共振胰胆管水成像（MRCP）中的应用。

Objective : To discuss the application of BALANCE - FFE sequence in abdominal MRCP .

15例均行MRI常规SE序列扫描和梯度回波化学位移同、反相位序列检查。

All cases were undergone unenhanced MR examination which consisted of conventional SE sequences and GRE chemical shift in and out phase imaging .

T2加权梯度回波成像对血管征的易感性在鉴别卒中亚型中的意义

Significance of susceptibility vessel sign on T2-weighted gradient echo imaging for identification of stroke subtypes

目的：探讨MRI中T1加权选择水激励梯度回波成像（T1W/WATS/FFE）序列在肾上腺疾病检查中的应用价值。

Objective : To study the T_1W / WATS / FFE series of MRI applied in the diagnosis of adrenal diseases .

结果：膝关节矢状位MRI梯度回波序列T2WI和质子密度序列中，股骨髁与胫骨平台的骺软骨MRI能显示出3层不同的信号强度。

Results : The T_2WI ~ sequence MRI can display three different signal strength of layers of knee joint cartilage .

屏气电影法MRI评价左室功能初步研究MR动态增强扫描采用一次屏气梯度回波序列，快速小角度激发二维（FLASH2D）准T1WI加权像。

The Preliminary Study of Left Ventricular Function by Breath-hold Cine MR Imaging Breath-hold dynamic scans with FLASH 2D T1-weighted imaging were obtained .

目的：探讨MRI中三维T1加权成像梯度回波（3DT1WI/TFE）序列在肝硬化结节诊断中的价值。

Objective : To study the 3D T 1WI / TFE sequence of MRI applied in the diagnoses of hepatic cirrhosis nodules .

分别在静息时和各个负荷水平采用梯度回波技术，在短时屏气期间，采集3个短轴平面、1个四腔位和1个二腔位MR图像。

The staircase recoil-wave shill was adopted at rest and each loading level , MRI images were acquired during short breath-holds in 3 short-axis views and a 4 - and a 2-chambre view .

脉冲序列采用梯度回波序列，在x、y或z轴上施加运动敏感梯度（MSG）。

A modified gradient echo sequence was developed with motion sensitizing gradient ( MSG ) imposed along X , Y or Z direction .

梯度回波序列（GRE）在脊椎病变的诊断作用

To evaluate the diagnostic role of gradin-echo in spondylopathy

目的探讨增强MR血管造影的方法，评价快速梯度回波序列增强MR数字减影血管造影对腹主动脉、髂动脉及下肢动脉病变的诊断价值。

Objective To study the method of 3D contrast enhanced MR digital subtraction angiography ( MR DSA ) and evaluate the diagnostic value in patients with abdominal aortic , iliac and lower extremity artery diseases .

SWI是一种三维、高分辨率、T2加权的梯度回波成像方式。

SWI is a 3D , high resolution , T2-weighted , and gradient-echo imaging technique .

室管膜下结节是TSC最重要的MR影像学表现之一，以T1加权成像（T1WI）及梯度回波序列显示效果最佳。

T1-weighted imaging ( T1WI ) and gradient echo sequences are more sensitive to the subependymal nodules than T2-weighted imaging ( T2WI ) .

其中7例用T1加权三维磁化强度预备梯度回波序列扫描用于立体定位活检。

Seven cases were scanned with T1WI three-dimensional magnetization prepared rapid acquisition gradient echo sequences ( T1WI-3D-MP RAGE ) for stereotactic biopsy .

外伤病变首选HRCT，面肌痉挛病人首选梯度回波T1WI。

HRCT was first choose with traumatic patients and RF-FAST T1WI sequenced were performed in patients with facial spasm .

移植后10周，在T2和T2梯度回波仍可观察到移植区的低信号，同时移植区有混杂信号。

10 weeks after transplantation , the hypo-intense signals and mixed signals were also found on T2 weighted and T2 gradient echo imaging .

目的：探讨MR三维扰相梯度回波序列（3dimension-spoiledgradientrecalledecho，3D-SPGR）冠状位快速动态增强对肝脏占位性病变的诊断价值。

Objective : To evaluate the diagnostic value of 3D-SPGR coronal dynamic contrast-enhanced MRI in liver space occupying lesions .

结果：扫描结果显示在自旋回波和梯度回波的T2加权序列中，肝实质呈明显负性强化。

Results : The study shown that the hepatic parenchyma had a significantly negative enhancement in T 2 weight of SE and GRE sequence .