Search references for GRADIENT ECHO. Phrases containing GRADIENT ECHO
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Type of MRI sequence
Gradient echo is a magnetic resonance imaging (MRI) sequence that has wide variety of applications, from magnetic resonance angiography to perfusion MRI
Gradient_echo
Pulse sequence during a medical test
they become coherent, and thus signal (or "echo") is generated to form images. Unlike spin echo, gradient echo does not need to wait for transverse magnetisation
MRI_pulse_sequence
Magnetic resonance imaging sequence
magnetizations. In general, SSFP MRI sequences are based on a (low flip angle) gradient echo MRI sequence with a short repetition time which in its generic form
Steady-state free precession imaging
Steady-state_free_precession_imaging
Medical imaging technique
so-called spin-warp method). In a standard spin echo or gradient echo scan, where the readout (or view) gradient is constant (e.g., G), a single line of k-space
Physics of magnetic resonance imaging
Physics_of_magnetic_resonance_imaging
Pulse sequence used in medical imaging
MRI) is a particular sequence of magnetic resonance imaging. It is a gradient echo sequence which combines a low-flip angle radio-frequency excitation
Fast low angle shot magnetic resonance imaging
Fast_low_angle_shot_magnetic_resonance_imaging
Type of neuroimaging
created as a postexcitation refocused gradient echo (GRE) sequence with small flip angle. The sequence of gradient echo T2*-weighted imaging (GRE T2*WI) requires
T2*-weighted_imaging
Type of MRI
on gradient echo sequences, efficient k-space sampling, and fast reconstruction methods to speed up the image acquisition process. Gradient echo sequences
Real-time_MRI
MRI procedure that measures brain activity by detecting associated changes in blood flow
microvascular specificity of spin-echo (SE). They simultaneously acquire multiple gradient-echoes and spin-echoes (e.g., 2 GRE, 2 Asymmetric SE, 1 SE)
Functional magnetic resonance imaging
Functional_magnetic_resonance_imaging
Response of spin to electromagnetic radiation
however, changes the phase-encoding gradient for each of these echoes (a conventional multi-echo sequence collects all echoes in a train with the same phase
Spin_echo
Data manipulation in radiology
physical reasons (such as the different chemical shift of fat and water in gradient echo techniques). MRI k-space is related to NMR time-domain in all aspects
K-space in magnetic resonance imaging
K-space_in_magnetic_resonance_imaging
Type of convolutional neural network
(September 2019). "Separation of water and fat signal in whole-body gradient echo scans using convolutional neural networks". Magnetic Resonance in Medicine
U-Net
Bleeding within the skull
hyperdense lesions. Magnetic resonance imaging (MRI), particularly with gradient echo sequences, is more sensitive than CT in detecting small hemorrhagic
Intracranial_hemorrhage
Disease of blood vessels of the brain
and hypodense oedema around the haemorrhagic site. MRI sequences of gradient echo and susceptibility weighted imaging (SWI) are useful in detecting microbleeds
Cerebral_amyloid_angiopathy
MRI sequence sensitive to venous blood, hemorrhage and iron storage
hemorrhage and iron storage. SWI uses a fully flow compensated, long echo, gradient recalled echo (GRE) pulse sequence to acquire images. This method exploits
Susceptibility weighted imaging
Susceptibility_weighted_imaging
Medical imaging technique
inside the body. MRI scanners use strong magnetic fields, magnetic field gradients, and radio waves to form images of the organs in the body. MRI does not
Magnetic_resonance_imaging
Topics referred to by the same term
intentional destruction of evidence in a legal case Spoiling of a gradient echo magnetic resonance sequence Spoil (disambiguation) Decay (disambiguation)
Spoilage
synovitis eroding the posterior cortex of the femoral neck. Sagittal T2* gradient echo image showing a posterior soft tissue mass with hypointense areas secondary
Hip_pain
Region with a lack of blood flow due to vein malformation
relationship with the gut microbiome as a driving factor in CCM formation. Gradient-echo T2WI magnetic resonance imaging (MRI) is the most sensitive method for
Cavernous_hemangioma
Medical condition
flop sign.[citation needed] On magnetic resonance imaging, multiecho gradient echo images can be used to determine the percent fat fraction of the liver
Steatosis
Disease that damages the myelin sheaths around nerves
HLA locus. The prevalence of MS from a geographic standpoint resembles a gradient, with it being more common in people who live farther from the equator
Multiple_sclerosis
Medical diagnostic method
sequences such as spin echo with T1 and T2-weighted sequences, inversion recovery, chemical shift selective techniques, and gradient echo techniques are used
Arthrogram
Medical diagnostic method
Gadolinium contrast is injected, and rapid repeated imaging (generally gradient-echo echo-planar T2*-weighted) quantifies susceptibility-induced signal loss
Perfusion_MRI
Type of magnetic resonance imaging
of live mice and rats under anesthetization have been measured by a gradient echo pulse sequence. Experiments shown that when the content of oxygen in
Blood-oxygenation-level–dependent imaging
Blood-oxygenation-level–dependent_imaging
Physical phenomenon
time (TR) such as < 750 ms and echo time (TE) such as < 40 ms in conventional spin echo sequences, while in Gradient Echo Sequences they can be obtained
Spin–lattice_relaxation
Abnormal accumulation of iron in the body
in determining a response to treatment or prognosis. A T2*-weighted gradient-echo MRI sequence (often called T2* relaxometry) is used for the quantification
Iron_overload
Type of visual artifact
avoiding gradient-echo imaging when metal is present. A technique called MARS (metal artifact reduction sequence) applies an additional gradient, along
MRI_artifact
MRI sequence
Alfredo; Gupta, Vivek; Grewal, Sanjeet S (December 2021). "Edge-enhancing gradient echo with multi-image co-registration and averaging (EDGE-MICRA) for targeting
Inversion_recovery
Magnetic phenomenon
conventional spin echo can also be used to measure T2; gradient echo sequences such as steady-state free precession (SSFP) and multiple spin echo sequences can
Spin–spin_relaxation
Medical condition
detected using CT scans (and can be missed completely on MRI without gradient echo sequences (magnetic resonance imaging)). White matter abnormalities:
Aicardi–Goutières_syndrome
Topics referred to by the same term
Routing Encapsulation, a type of tunnel used on routers Gradient recalled echo, or gradient echo, a type of magnetic resonance imaging sequence Glycpeptide
GRE_(disambiguation)
American neurologist and neuroimmunologist (born c. 1956)
breakthrough that Cross and her colleagues made recently was discovering that gradient echo MRI can be used to reliably assess cortical gray matter damage, a common
Anne_Haney_Cross
Quantum-mechanical version of computer memory
orbital angular momentum superposition state for 100 nanoseconds. GEM (Gradient Echo Memory) is a protocol for storing optical information and it can be
Quantum_memory
Human disease
reveal the presence of the worm. The presence of haemorrhagic tracks on gradient-echo T2-weighted MRI is characteristic and possibly diagnostic. The best
Gnathostomiasis
Method used in magnetic resonance imaging
"Microvascular BOLD contribution at 4 and 7 T in the human brain: gradient-echo and spin-echo fMRI with suppression of blood effects". Magnetic Resonance in
Intravoxel_incoherent_motion
principle, any 3D gradient echo sequence can be used for data acquisition. In practice, high resolution imaging with a moderately long echo time is preferred
Quantitative susceptibility mapping
Quantitative_susceptibility_mapping
Method of measuring the depth of water
Echo sounding or depth sounding is the use of sonar for ranging, normally to determine the depth of water (bathymetry). It involves transmitting acoustic
Echo_sounding
American radiologist
means to measure endogenous signals based on blood oxygenation using gradient echo imaging. He successfully demonstrated the technique in May 1991 and
Bruce_Rosen
MRI sequence simulation technique
Sobol, Wlad T.; Gauntt, David M. (1996). "On the stationary states in gradient echo imaging". Journal of Magnetic Resonance Imaging. 6 (2): 384–398. doi:10
Extended_phase_graph
Medical condition
imaging (MRI), particularly using a specific imaging technique known as a gradient-echo sequence MRI, which can unmask small or punctate lesions that may otherwise
Central nervous system cavernous hemangioma
Central_nervous_system_cavernous_hemangioma
Medical imaging technique
coronal single-shot-fast spin echo (commercial name HASTE) with fat saturation Axial and coronal 3D spoiled gradient echo (commercial name VIBE) before
Magnetic resonance enterography
Magnetic_resonance_enterography
German chemist and medical physicist (born 1951)
Scheffler, Klaus; Hennig, Jürgen (2003-01-22). "Is TrueFISP a gradient‐echo or a spin‐echo sequence?". Magnetic Resonance in Medicine. 49 (2): 395–397.
Jürgen_Hennig
Medical diagnostic method
electromagnetic actuation and a fast fractionally encoded steady-state gradient echo sequence". NMR Biomed. 27 (7): 784–94. doi:10.1002/nbm.3118. PMID 24764278
Magnetic resonance elastography
Magnetic_resonance_elastography
Branch of bioinformatics
pulses (used to reduce motion artifacts), gradient echo (such as dynamic contrast enhancement), spin echo, and diffusion weighting (a signal contrast
Biological_data_visualization
Type of region
in the cloud, and by vertical perturbation pressure gradients that can arise from vertical gradients of vertical vorticity, stagnation of environmental
Rear_flank_downdraft
three commonly using T1-weighted (e.g. Magnetization Prepared Rapid Gradient Echo, MP-RAGE) and sometimes T2-weighted pulse sequences, while DTI/DSI use
Brain_morphometry
Meteorological method to determine relative strength of thunderstorm cells
weather radar to measure quantities such as height (echo tops), reflectivity (such as morphology and gradient), and location to show features and trends described
Lemon_technique
Medical imaging technique
to be acquired within a breath-hold, a fast pulse-sequences, or fast-gradient echos, are used to adequately sample the k-space. After a patient inhales
Xenon_gas_MRI
American radiologist
(1996). "An alternative to GRASE: toward spin-echo-like contrast with independent reconstruction of gradient-echo images". Magnetic Resonance in Medicine.
Burton_Drayer
Contrast mechanism for functional magnetic resonance imaging
Krause V, Frankenstein UN, Malisza KL, Tomanek B. Spin-echo versus gradient-echo fMRI with short echo times. Magn Reson Imaging 2001;19(6):827-831. Ohta S
Signal enhancement by extravascular water protons
Signal_enhancement_by_extravascular_water_protons
Class of artificial neural network
machine translation. However, traditional RNNs suffer from the vanishing gradient problem, which limits their ability to learn long-range dependencies. This
Recurrent_neural_network
Type of neural network which utilizes recursion
nodes in the tree. Typically, stochastic gradient descent (SGD) is used to train the network. The gradient is computed using backpropagation through
Recursive_neural_network
Weather feature
The bounded weak echo region, also known as a BWER or a vault, is a radar signature within a thunderstorm characterized by a local minimum in radar reflectivity
Bounded_weak_echo_region
Company logo
color scheme, to include a gradient between sections of color instead of solid blocks. This visually connects with the gradient present in the logo of Google's
Google_logo
CSF Flow MRI overview, methodology, and application
bipolar gradient. A bipolar gradient has equal positive and negative magnitudes that are applied for the same time duration. The bipolar gradient in PC-MRI
Cerebrospinal_fluid_flow_MRI
Type of reservoir computer
An echo state network (ESN) is a type of reservoir computer that uses a recurrent neural network with a sparsely connected hidden layer (with typically
Echo_state_network
Medical condition
resulting from trauma, at 1.5 tesla field strength. Left: conventional gradient recalled echo (GRE). Right: Susceptibility weighted image (SWI). Specialty Neurology
Diffuse_axonal_injury
2025 video game
parries, including Gradient Attacks, Gradient Counters, and Gradient Skills, all of which deal significant damage. The use of gradient attacks is monitored
Clair_Obscur:_Expedition_33
Secured forward military position
Al Asad FOB Caldwell FOB Carpenter FOB Courage FOB Danger FOB Falcon FOB Echo FOB Grizzly FOB Haditha Dam[6] FOB Iskandariyah FOB Kalsu FOB Loyalty FOB
Forward_operating_base
resonance imaging, additional gradient pulses are applied by switching magnetic fields that exhibit a space-dependent gradient which can be used to reconstruct
Pulse_sequence
Speed of sound wave through elastic medium
This produces a positive speed-of-sound gradient in this region. Still another region of positive gradient occurs at very high altitudes, in the thermosphere
Speed_of_sound
Hot spring in Waimangu Volcanic Rift Valley, New Zealand
not widely used) is the world's largest hot spring. It is located in the Echo Crater of the Waimangu Volcanic Rift Valley, New Zealand and its acidic water
Frying_Pan_Lake
Common weather phenomenon in San Francisco
100 °F (38 °C). This significant difference creates a strong pressure gradient that turns the prevailing northwest flow to a westerly and even southwesterly
San_Francisco_fog
Ancient Roman aqueduct bridge
Nemausus (Nîmes). The structure's precise construction allowed an average gradient of 1 cm (0.39 in) in 182.4 m (598 ft). It may have been in use as late
Pont_du_Gard
Group of techniques based on MRI to image blood vessels
velocity is the application of a bipolar gradient between the excitation pulse and the readout. A bipolar gradient is formed by two symmetric lobes of equal
Magnetic resonance angiography
Magnetic_resonance_angiography
Enlargement of the heart muscle
A31S, C84Y and D145E. Ventricular hypertrophy causes a dynamic pressure gradient across the left ventricular outflow tract (LVOT), which is associated with
Hypertrophic_cardiomyopathy
Overview of and topical guide to deep learning
learning Artificial neural network Representation learning Feature learning Gradient descent Backpropagation Loss function Optimization Training, validation
Outline_of_deep_learning
Country in South Asia
extremely low gradient, caused by long-term silt deposition, leads to severe floods and course changes. Major peninsular rivers, whose steeper gradients prevent
India
to encode spatial information into an NMR signal using magnetic field gradients in September 1971; he published the theory behind it in March 1973. The
History of magnetic resonance imaging
History_of_magnetic_resonance_imaging
Marine sinkhole
frequency-dependent detection and range limitations due to water density vertical gradients, cross-sectional depth variations, or morphometric deviations in non-strictly
Taam_Ja'_Blue_Hole
functions. The chain rule, developed by Gottfried Wilhelm Leibniz in 1676, and gradient descent, independently proposed by Augustin-Louis Cauchy in 1847 and Jacques
History of artificial neural networks
History_of_artificial_neural_networks
Underwater position-fixing system
Hydroacoustics Sonar Active acoustics Baffles (submarine) Bistatic sonar Echo sounding Fessenden oscillator GLORIA sidescan sonar Multibeam echosounder
Sofar_bomb
2025 English local election
plans to cut dozens of councillors from Durham County Council". The Northern Echo. 2022-09-23. Retrieved 2024-11-29. "MRP Local Election Poll March 2025".
2025 Durham County Council election
2025_Durham_County_Council_election
Polar mesospheric summer echoes (PMSE) is the phenomenon of anomalous radar echoes found between 80 and 90 km in altitude from May through early August
Polar mesospheric summer echoes
Polar_mesospheric_summer_echoes
Acoustic sensing method
pulses of sounds and listening for echoes. Sonar may be used as a means of acoustic location and of measurement of the echo characteristics of "targets" in
Sonar
is also commonly referred to as "Ice Penetrating Radar (IPR)" or "Radio Echo Sounding (RES)". Glaciers are particularly well suited to investigation by
Radioglaciology
Substances which absorb radio frequency energy
ambiguities. RAM are widely used in RF anechoic chambers to achieve an "echo-free" environment. One of the most effective types of RAM comprises arrays
Radiation-absorbent_material
Historic building in Devon, South West England
closed to traffic by the police, and the 70 metres (77 yd) move up the 1:10 gradient hill was slowly completed using air-compressor driven winches. In order
The_House_That_Moved
Major road in England
to the south. The Birdlip bypass, opened in 1988, avoided a steep (16%) gradient as the road descended the Cotswold Edge escarpment to Brockworth. On 31
A417_road
2025 video game
impacted. The world exploration was designed in layers along an emotional gradient and hierarchy. It was structured into base layers comprising points of
Where_Winds_Meet
Characteristic of any structure that is periodic across a position in space
of phase-variable spin-echo signals. Each of the spin-echo signal is a sinc function of time, which can be described by Spin-Echo = M 0 sin ω r t ω r
Spatial_frequency
Low-Field MRI
two key magnetic field components: the strong static field B0 and the gradient fields that vary linearly in space. The B0 field, produced by the main
Low-field magnetic resonance imaging
Low-field_magnetic_resonance_imaging
Part of the Black Sea
southwest. It represents 12.2% of the Black Sea area with a very gentle gradient of 1:1,000. A small part of the abyssal plain is split off by the Danubian
Euxine_abyssal_plain
Branch of machine learning
and analyzed the vanishing gradient problem. Hochreiter proposed recurrent residual connections to solve the vanishing gradient problem. This led to the
Deep_learning
Type of American locomotive
two exceptions were the 1.14% eastbound gradient between Ogden and Evanston and the 1.55% westbound gradient between Cheyenne and Sherman Hill. In 1953
Union_Pacific_Big_Boy
Crewed full ocean depth rated submersible
profiles of the water column observed at the dive site, and estimated gravity gradient variations, water level, and atmospheric pressure, giving a corrected value
DSV_Limiting_Factor
which is what occurs in the solid mantle due to the very large thermal gradient across it. There are small pockets of molten rock in the upper mantle,
List of common misconceptions about science, technology, and mathematics
List_of_common_misconceptions_about_science,_technology,_and_mathematics
Mountain range in Australia
(453.85 yd) through sandstone cliffs, via a rock tunnel with a maximum gradient of 52 degrees. Also, at this location is the Scenic Skyway, a glass-bottom
Blue Mountains (New South Wales)
Blue_Mountains_(New_South_Wales)
Korean side dish of fermented vegetables
Ahn, Jong Seog (2005). "Analysis of kimchi microflora using denaturing gradient gel electrophoresis". International Journal of Food Microbiology. 102 (2):
Kimchi
Angle between diagonal and edge of a cube
quadrupolar coupling, it corresponds to the z-axis of the electric-field gradient tensor. The angle β cannot be manipulated as it depends on the orientation
Magic_angle
chileno y sus implicaciones ético-sociales" [The Chilean sociogenetic gradient and its ethical-social implications] (in Spanish). Medwave.cl. 15 June
Indigenous peoples of the Americas
Indigenous_peoples_of_the_Americas
2002 film by Gore Verbinski
convert the color temperature from tungsten to daylight. They come in gradients: Quarter Blue, Half Blue, Full Blue." https://amblin.com/movie/the-ring/
The_Ring_(2002_film)
Tendency to give more importance to negative experiences than positive ones
event itself. In other words, there is a steeper negative gradient than positive gradient. For example, the negative experience of an impending dental
Negativity_bias
Region of rotation within a powerful thunderstorm
low pressure, adjacent air parcels flowing across the updraft's pressure gradient begin rotating at different rates relative to each other. This creates
Mesocyclone
Legislative capital of South Africa
water upwelling near Cape Hangklip causes a strong surface temperature gradient between the south-western and north-eastern corners of the bay. In winter
Cape_Town
Type of energy transfer
diffusive flux of internal energy, such as gradient of chemical potential which drives transfer of matter, and gradient of electric potential which drives electric
Heat
; Skeels, A. (2025). "Deep time evolution of the Latitudinal Diversity Gradient: Insights from mechanistic models". PLOS ONE. 20 (9) e0332766. Bibcode:2025PLoSO
2025_in_paleontology
1990–1991 conflict in the Middle East
Database, Iraq 1973–1990 Gulf War curfew in Palestine Loss-of-strength gradient Military history of the United States Post–World War II air-to-air combat
Gulf_War
National park in Utah, United States
rectangular paths because they follow jointing planes in the rocks. The stream gradient of the Virgin River, whose North Fork flows through Zion Canyon in the
Zion_National_Park
Method of utilizing water in magnetic resonance imaging
January 1965). "Spin Diffusion Measurements: Spin Echoes in the Presence of a Time-Dependent Field Gradient". The Journal of Chemical Physics. 42 (1): 288–292
Diffusion-weighted magnetic resonance imaging
Diffusion-weighted_magnetic_resonance_imaging
Grade I listed structure in North Yorkshire, England
the "Donkey Road", is also a grade I listed structure. It has a near-50% gradient, and may have acquired its name from the walking of beach donkeys down
Whitby_199_steps
GRADIENT ECHO
GRADIENT ECHO
Boy/Male
British, English
Great
Boy/Male
Tamil
Pradyun | பà¯à®°à®¤à®¯à¯à®¨
Radiant
Pradyun | பà¯à®°à®¤à®¯à¯à®¨
Surname or Lastname
Swedish
Swedish : unexplained.German : unexplained.English : unexplained.
Girl/Female
Tamil
Suprabha | ஸà¯à®ªà¯à®°à®ªà®¾
Radiant
Suprabha | ஸà¯à®ªà¯à®°à®ªà®¾
Boy/Male
Muslim
Radiant
Boy/Male
Indian
Radiant
Boy/Male
Muslim
Radiant
Boy/Male
Tamil
Radiant
Boy/Male
Tamil
Radiant
Girl/Female
Tamil
Ujjvala | உஜà¯à®œà¯à®µà®¾à®²à®¾
Radiant
Ujjvala | உஜà¯à®œà¯à®µà®¾à®²à®¾
Boy/Male
Tamil
Radiant
Boy/Male
Indian
Radiant
Boy/Male
Indian
Radiant
Girl/Female
Latin
Grace.
Boy/Male
American, British, English
Gray-haired; Son of the Gray Family; Son of Gregory
Girl/Female
Tamil
Radiant
Male
French
French form of Roman Latin Gratian, GRATIEN means "pleasing, agreeable."
Boy/Male
Muslim
Radiant
Boy/Male
Tamil
Pradhyun | பà¯à®°à®¤à¯à®¯à¯à®‚நÂ
Radiant
Pradhyun | பà¯à®°à®¤à¯à®¯à¯à®‚நÂ
Boy/Male
Muslim
Radiant
GRADIENT ECHO
GRADIENT ECHO
Boy/Male
Hindu, Indian
Drawn
Boy/Male
Indian, Sanskrit
Giver of Power
Girl/Female
Gujarati, Hindu, Indian
Full of Joy; Happiness
Girl/Female
Indian
Beautiful, Perfect, One of the ninety nine qualities of God
Boy/Male
American, Chinese, French, German, Latin, Portuguese, Spanish, Teutonic
Intelligent; Bright; Famous Giant; Shining Intellect; Brilliant Strength
Girl/Female
Indian
To inspire
Boy/Male
Tamil
Tilakarathna | தீலாகாரதநா
Nama
Girl/Female
Indian, Sanskrit
Causative
Girl/Female
Hebrew
Crowned.
Surname or Lastname
English (Yorkshire)
English (Yorkshire) : possibly a nickname for someone with pale or lustreless eyes, from Middle English pale ‘pale’ + eye ‘eye’.English : from an Old Scandinavian personal name, Old Danish Palli or Old Swedish Palle, probably originally an ethnic name meaning ‘Pole’.French : habitational name from a place in Seine-et-Marne, probably originally derived from Latin palus ‘post’, ‘stake’ + suffix -etum.Jewish (from Belarus), Belorussian, and Ukrainian : occupational name for a distiller, from an eastern Slavic word meaning ‘to burn’ (Russian palit, Ukrainian palyty) + the Slavic noun suffix -ej.
GRADIENT ECHO
GRADIENT ECHO
GRADIENT ECHO
GRADIENT ECHO
GRADIENT ECHO
a.
Beamy; radiant.
a.
Giving off rays; -- said of a bearing; as, the sun radiant; a crown radiant.
a.
Bright; shining; radiant; sheen.
a.
Moving by steps; walking; as, gradient automata.
n.
The rate of increase or decrease of a variable magnitude, or the curve which represents it; as, a thermometric gradient.
n.
The rate of regular or graded ascent or descent in a road; grade.
a.
Beaming with vivacity and happiness; as, a radiant face.
a.
Rising or descending by regular degrees of inclination; as, the gradient line of a railroad.
n.
A step or raised shelf, as above a sideboard or altar. Cf. Superaltar, and Gradin.
a.
Adapted for walking, as the feet of certain birds.
n.
A part of a road which slopes upward or downward; a portion of a way not level; a grade.
pl.
of Gradino
a.
Shining; radiant.
a.
Emitting beams; radiant.
a.
Especially, emitting or darting rays of light or heat; issuing in beams or rays; beaming with brightness; emitting a vivid light or splendor; as, the radiant sun.
n.
Alt. of Gradine
n.
Inclination; ascent or descent; a gradient.
a.
Radiating; radiant.
n.
A graded ascending, descending, or level portion of a road; a gradient.
n.
State of being gracilent; slenderness.