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Gradient echo is a magnetic resonance imaging (MRI) sequence that has wide variety of applications, from magnetic resonance angiography to perfusion MRI and diffusion MRI. Rapid imaging acquisition allows it to be applied to 2D and 3D MRI imaging. Gradient echo uses magnetic gradients to generate a signal, instead of using 180 degrees radiofrequency pulse like spin echo; thus leading to faster image acquisition time.[1]

  1. ^ Hargreaves BA (December 2012). "Rapid gradient-echo imaging". Journal of Magnetic Resonance Imaging. 36 (6): 1300–1313. doi:10.1002/jmri.23742. PMC 3502662. PMID 23097185.

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MRI pulse sequence

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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...

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Gradient echo

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Gradient echo is a magnetic resonance imaging (MRI) sequence that has wide variety of applications, from magnetic resonance angiography to perfusion MRI...

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Physics of magnetic resonance imaging

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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...

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Cerebral amyloid angiopathy

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area and hypodense odema around the haemorrhagic site. MRI sequence of gradient echo and susceptibility weighted imaging (SWI) are useful in detecting microbleeds...

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Fast low angle shot magnetic resonance imaging

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MRI) is a particular sequence of magnetic resonance imaging. It is a gradient echo sequence which combines a low-flip angle radio-frequency excitation...

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Spin echo

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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...

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Magnetic resonance imaging

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inside the body. MRI scanners use strong magnetic fields, magnetic field gradients, and radio waves to generate images of the organs in the body. MRI does...

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Functional magnetic resonance imaging

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idea of the expected shape of the activation image. Typical gradient-echo EPI uses two gradient coils within a slice, and turns on first one coil and then...

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Intracranial hemorrhage

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scan in detecting such small hemorrhagic contusions, with the use of gradient echo sequence. Contusions are more commonly seen in the brain parenchyma...

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Susceptibility weighted imaging

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hemorrhage and iron storage. SWI uses a fully flow compensated, long echo, gradient recalled echo (GRE) pulse sequence to acquire images. This method exploits...

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Hip pain

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synovitis eroding the posterior cortex of the femoral neck. Sagittal T2* gradient echo image showing a posterior soft tissue mass with hypointense areas secondary...

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Cavernous hemangioma

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the pathophysiological basis for cavernous hemangioma development. Gradient-echo T2WI magnetic resonance imaging (MRI) is most sensitive method for diagnosing...

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Spoilage

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intentional destruction of evidence in a legal case Spoiling of a gradient echo magnetic resonance sequence Spoil (disambiguation) Spoiled (disambiguation)...

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Steatosis

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flop sign.[citation needed] On magnetic resonance imaging, multiecho gradient echo images can be used to determine the percent fat fraction of the liver...

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Multiple sclerosis

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probability of MS. The prevalence of MS from a geographic standpoint resembles a gradient, with MS being more common in people who live farther from the equator...

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Arthrogram

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sequences such as spin echo with T1 and T2-weighted sequences, inversion recovery, chemical shift selective techniques, and gradient echo techniques are used...

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MRI artifact

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avoiding gradient-echo imaging when metal is present. A technique called MARS (metal artifact reduction sequence) applies an additional gradient, along...

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Perfusion MRI

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Gadolinium contrast is injected, and rapid repeated imaging (generally gradient-echo echo-planar T2*-weighted) quantifies susceptibility-induced signal loss...

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Quantum memory

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orbital angular momentum superposition state for 100 nanoseconds. GEM (Gradient Echo Memory) is a protocol for storing optical information and it can be...

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Central nervous system cavernous hemangioma

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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...

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