asl是什么意思(asl故障是什么意思)

来源:七七学识网 发布:2022-04-23 15:43:21

MRI:Magnetic Resonance Imaging磁共振成像

NMRI:Nuclear Magnetic Resonance Imaging核磁共振成像

MRA:Magnetic Resonance Angiography磁共振血管造影

CE-MRA:contrast enhanced magnetic resonance angiography对比增强磁共振血管成像

MRV:Magnetic Resonance Venography磁共振静脉造影

VW-MRI:vessel wall magnetic resonance imaging磁共振血管壁成像

MRCP:Magnetic Resonance cholangiopancreatography磁共振胰胆管成像

MRM:Magnetic Resonance Myelography磁共振脊髓成像

MRU:Magnetic Resonance urography磁共振尿路成像

MRN:Magnetic Resonance neurography磁共振神经成像

CMR:Cardiovascular MR心血管磁共振检查技术

fMRI:functional magnetic resonance imaging磁共振功能成像

MRE:Magnetic Resonance Elastography磁共振弹性成像

T1WI:T1-weighted imagingT1加权成像

T2WI:T2-weighted imagingT2加权成像

PDWI:proton density weighted imaging质子密度加权成像

EPI:echo planar imaging平面回波成像

MS-EPI:multi shot echo planar imaging多激发平面回波成像

DWI:diffusion weighted imaging扩散加权成像(小视野弥散Philips-ZOOM/Siemens-ZOOMit/GE-FOCUS)

ADC:apparent diffusion coefficient表观扩散系数

DWIBS:diffusion weighted imaging with background suppression背景抑制扩散加权成像

RESOLVE:readout segment of long variable echo trains基于读出方向分段K空间asl是什么意思的多次激发弥散加权成像(Siemens)

MUSE:multi-slab parallel EPI多激发节段式EPI采集空间信号敏感性编码图像重建(GE)

DTI:diffusion tensor imaging扩散张量成像

PWI:perfusion weighted imaging灌注加权成像

BOLD:blood oxygenation level dependent血氧水平依赖

RF:Radio Frequency射频

TR:repetition time重复时间

TE:echo time回波时间(Effective TE有效TE)

Minimum TE:部分回波技术

TI:inversion time反转时间

ES:echo space回波间隙

ETL:echo train length回波链长度

BW:bandwidth带宽

FA:flip angle反转角

TA:Acquisition time采集时间

NA:number of acquisitions采集次数

NSA:number of signal averaged信号平均次数

NEX:number of excitation激励次数

TD:time of delay延迟时间

WFS:water fat shift水脂位移

FC:flow compensation流动补偿

TOF:time of flight时间飞跃

TRICKS:time resolved imaging of contrast Kinetics对比剂动态成像

PC:phase contrast相位对比

VENC:velocity encoding流速编码

NPW:no phase wrap去相位卷褶

IR:inversion recovery反转恢复

MT:magnetization transfer磁化转移(磁化传递)

FT:fourier transform傅里叶变换

VPS:Views Per Segment每段视图

BSP TI:blood suppression TI血夜抑制反转时间(IFIR参数)

序列

SE:spin echo自旋回波

FSE:fast spin echo快速自旋回波

TSE:turbo spin echo快速自旋回波

FRFSE:fast recovery fast spin echo快速恢复快速自旋回波(GE)

TSE-Restore:快速恢复快速自旋回波(Siemens)

TSE DRIVE(TSE driven equilibrium DE驱动平衡):快速恢复快速自旋回波(Philips)

SSFSE:single shot fast spin echo单次激发快速自旋回波

HALF-SS-TSE:half-fourier acquisition single-shot turbo spin echo半傅里叶单次激发快速自旋回波(Philips)

HASTE:half-fourier acquisition single-shot turbo spin echo半傅里叶单次激发快速自旋回波(Siemens)

FLAIR:fluid attenuated inversion recovery水抑制反转恢复

ASL:arterial spin labeling动脉自旋标记

BPAS:basi-parallel anatomical scanning平行椎基底动脉系统扫描

FIR:fast inversion recovery快速反转恢复(TIR:turbo inversion recovery)

DIR:dual inversion recovery(有资料译为double inversion recovery)双重反转恢复

下面三个技术(VISTA/CUBE/SPACE)摘自懋氏百科全书asl是什么意思,后面两个asl是什么意思的中文是我瞎翻译的:

VISTA(3D VIEW):volume isotropic turbo spin echo acquisition各向同性快速自旋回波容积采集(Philips)

CUBE:3D fast spin echo with an extended echo train acquisition长回波链3D快速自旋回波采集(GE)

SPACE:sampling perfection with application optimized contrast using different flip angle evolution最优可变翻转角改善对比完美采样(Siemens)

梯度回波

GRE:gradient recalled echo梯度回波(GE)

FFE:fast field echo快速场回波(Philips)

GE:gradient echo梯度回波(Siemens)

TFE:turbo field echo超快速场回波

FISP:fast imaging with steady-state precession稳态进动快速成像(Siemens)

PSIF(Siemens):采集刺激回波的GRE序列;在时序上与FISP相反遂命名为PSIF(Philips为T2-FFE;GE为CE-GRASS:contrast enhanced GRASS)

DESS:dual spin steady state双回波稳态进动(Siemens独有3D序列,显示软骨优势;同时采集FISP信号和PSIF信号)

MEDIC:multiple echo data image combination多回波数据合并成像(Siemens)

MERGE:multiple echo recalled gradient echo多回波梯度回波 (GE 2D)

COSMIC:coherent oscillatory state acquisition for the manipulation imaging contrast连续振荡状态采集操控成像对比(GE 3D多回波合并成像)

mFFE(Philips多回波):multiple fast field echo

SWI:susceptibility weighted imaging磁敏感加权成像

QSM:quantitative susceptibility mapping定量磁化率成像

SSFP:steady state free precession普通稳态自由进动(GE的GRE、Fast GRE均属该类型;西门子为FISP;在飞利浦上称为conventional FFE)

Balance-SSFP:balance steady state free precession平衡式稳态自由进动(Philips)

FIESTA:fast imaging employing steady state acquisition稳态采集快速成像(GE)

FIESTA-C:FIESTA-cycled phases双激发稳态采集快速成像(GE)

True FISP:true fast imaging with steady state precession真稳态自由进动快速成像(Siemens)

CISS:constructive interference in the steady state稳态进动结构相干(双激发)

B-FFE:balance fast field echo平衡式快速场回波(Philips)

TRANCE:triggered angiography non-contrast enhanced触发血管造影非对比增强(Philips; Siemens为 Native truefisp; GE为IFIR: InFlow Inversion Recovery)

QISS:Quiescent-Interval Single-Shot MR血管造影-静态间隔单次激发成像是一种用于外周MRA的非增强MRA技术(Siemens)。

REACT:Relaxation-EnhancedMR Angiography without Contrast and Triggering非打药非触发的驰豫增强血管成像

MP-FGRE:magnetization prepared fast gradient recalled echo磁化准备快速梯度回波(GE为FIRM /2D Fast GRE with IR-PREP/3D Fast GRE with IR-PREP/Fast GRE with DE-PREP、西门子FLASH/Turbo FLASH/MP-RAGE、飞利浦的MP-RAGE称为超快速场回波TFE)

IR-FGRE:inversion recovery fast GRE反转恢复快速梯度回波(多用于心脏首过灌注及延迟扫描)

SR-FGRE:saturation recovery fast GRE饱和恢复快速梯度回波(更多用于心脏灌注)

MDE:myocardial delayed enhancement心肌延迟增强

PSMDE:phase sensitive myocardial delayed enhancement相位敏感心肌延迟增强

SPGR(FSPGR):spoiled gradient recalled echo扰相梯度回波/快速扰相梯度回波

FLASH:fast low angle shot快速小角度激发

FAME:fast acquisition with multiphase enhanced fast GRE快速采集多期增强快速梯度回波

LAVA/LAVA XV/ LAVA FLEX:liver acquisition with volume acceleration肝脏容积加速采集(GE)

DISCO:differential subsampling with Cartesian ordering超快速动态增强成像序列(GE)

VIBE/StarVIBE/DIXON-VIBE:volumetric interpolated body examination梯度回波容积内插体部检查/volumetric interpolated breath-hold examination梯度回波容积内插屏息检查(Siemens)

THRIVE/mDIXON FFE XD:T1 high resolution isotropic volume excitationT1高分辨率各向同性容积激发(Philips)

PRESTO:principles of echo shifting with a train of observations回波位移技术(Philips)

GRASE:gradient and spin echo自旋回波与梯度回波结合/实际是FSE与EPI的结合(Philips;Siemens为TGSE:turbo gradient spin echo/GE为GSE:gradient and spin echo)

GRASS:gradient recalled acquisition in steady state稳态梯度回波采集

MPGR:multi-planer gradient echo多平面梯度回波

FID:free induction decay自由感应衰减

脂肪

FS:fat saturation脂肪饱和

STIR:Short TI Inversion Recovery 短时翻转恢复序列

SPAIR:Spectral Attenuated Inversion Recovery 频率衰减翻转恢复序列

SPIR:Spectral presaturation with Inversion Recovery 频率选择预饱和序列

CHESS:chemical shift selective saturation化学位移选择饱和法

SPECIAL:spectral inversion at lipids脂质频率选择反转(GE;同Philips-SPIR)

PROSET:principle of selective excitation technique选择性水激发技术

DIXON:经典两点法水脂分离

mDIXON:modified DIXON改良版DIXON

IDEAL:iterative decomposition of water and fat with echo asymmetric andleast-squares estimation非对称回波三点法水脂分离

IDEA-IQ:IDEAL Quantitative FAT/R2* Imaging T2*修正梯度多回波水脂分析脂肪定量技术(Philips为mDixon Quant/Siemens为Liver Lab)

技术

TIM:Total Imaging Matrix全景成像矩阵(Siemens TIM技术)

RTR:Respiratory trigger呼吸触发

BH:breath hold屏气

iPAT:integrated parallel acquisition techniques集成并行采集技术

ASSET:array coil spatial sensitivity encoding阵列线圈空间敏感度编码

SENSE:sensitivity encoding敏感度编码

ARC:Autocalibrating reconstruction for Cartesian imaging笛卡尔成像自校准重建

GRAPPA:GeneRalized Autocalibrating Partial Parallel Acquisition广义自校准部分并行采集

CS:compressed sensing压缩感知(几个相关的名词:transform sparsity稀疏变换/incoherence sampling不相干采样/nonlinear reconstruction非线性重建。该理论2006年就已经被提出,2007年运用到磁共振成像中,到现在2020年的众所周知…)

PROPELLER:periodically rotated overlapping parallel lines with enhanced reconstruction螺旋桨技术(GE-PROPELLER/SIMENS- BLADE/PHILPS- MultiVane)

MSDE:motion sensitized driven equilibrium运动敏感驱动平衡(Philips;一种黑血技术)

DANTE:delays alternating with nutation for tailored excitation延迟进动定制激发(一种黑血技术)

SNAP :simultaneous non-contrast angiography and intra plaque hemorrhage同步非对比剂血管成像和斑块内出血成像

DOT:day optimizing throughput日优化通量(西门子的一种优化MR工作流程的概念)

MAGIC:magnetic resonance image compilation(GE;同Philips-SyntAc)磁共振成像汇编(多对比度的定量图谱磁共振成像技术)

SyntAc:Synthetic Acquisition合成采集(Philips)

图像校正

PURE:Phased—array uniformity enhancement相控阵均匀度增强(相控阵线圈敏感度法)

SCIC:surface coil intensity correction表面线圈强度校正(滤过法)

HC:homogeneity correction均匀性校正(滤过法)

CLEAR:constant Level appearance恒定水平呈现(相控阵线圈敏感度法)

灌注

TIA:transient ischemic attack短暂性脑缺血发作

DSC:dynamic susceptibility contrast动态磁化率对比(基于T2*)

DCE:dynamic contrast enhancement动态对比增强(基于T1)

TTP:time to peak达峰时间

MTT:mean transit time平均通过时间

CBF:cerebral blood flow脑血流量(CBF=CBV/MTT)

CBV:cerebral blood volume脑血容量

ATT:arterial transit times动脉通过时间

PS:permeability-surface area product表面通透性

Tmax:time to top对比剂达到所有组织的时间

TDC:time density curve时间密度曲线

CCR:cerebral circulation reserve脑循环储备

PLD:post label delays标记后延迟时间

波谱

MRS:magnetic resonance spectroscopy磁共振波谱

PRESS:point resolved spectroscopy点分辨波谱(PRESS中所用的回波时间较长,便于更好的显示弛豫时间较长的代谢物。PRESS对运动、弥散和量子效应的敏感性较低,SNR优于刺激回波采集法STEAM)

STEAM:Stimulates echo acquisition mode刺激回波采集模式

CSI:chemical shift imaging化学位移成像

FWHM:full width at half maximum半高全宽

PPM:part per million百万分之一(百万分之一的共振频率。脂肪和水的共振频率相隔大约3.5ppm,这大约相当于1.5T磁场中的225Hz与3T磁场中的450Hz的绝对频率差异。)

IP:in phase同相位

OP:out of phase反相位

方位

AX:axial view轴位

OAX:oblique axial view斜轴位

TRA:transverse横断位

SAG:sagittal矢状位

COR:coronal冠状位

S:superior上

I:inferior下

A:anterior前

P:posterior后

front view前面观

back view(Rear view)后面观

后处理

FOV:field of view视野

RFOV:Rectangular field of view矩形视野

ROI:region of interest感兴趣区

VOI:volume of interest感兴趣容积

VR:volume rendering technique容积再现技术(差点直译为volume reproduce)

MIP:maximum intensity projection最大强度投影

mIP:minimum intensity projection最小密度投影

CPR:curved planar reformation曲面重组

MPR:multiple planar reconstruction多平面重组

SSD:surface shaded display表面遮盖显示

CTVE:CT virtual endoscopy CT仿真内窥镜

其他

ISI:imaging system interface磁共振同步造影成像系统接口(由西门子医疗和拜耳联合研发的用于连接磁共振设备和高压注射器的同步造影成像系统)

CNR:contrast to noise ratio对比噪声比

SNR:signal to noise ratio信噪比

SAR:specific absorption ratio特异性吸收率

ECG:electrocardiogram传统心电图

VCG:Vectorcardiogram心电向量图

PG:PeripheralGating外周门控(指脉)

BPM:beats per minute每分钟心跳次数

Temporal resolution时间分辨率

Spatial resolution空间分辨率

会议

CMDA:Chinese Medical Association中华医学会

CCR:Chinese Congress of Radiology中华放射学大会

ECR:European Congress of Radiology欧洲国际放射学大会

RSNA:Radiological Society of North America北美放射学会

ACR:American College of Radiology美国放射学会

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