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RF Spoiled Fourier Acquired Steady State TechniqueInfoSheet: - Sequences -
Intro, Overview, 
Types of, 
etc.MRI Resource Directory:
 - Sequences -
 
(RF-FAST / RF spoiled FAST) A gradient echo sequence.
See Spoiled Gradient Echo Sequence.
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Ringing Artifact Reduction
 
Multiplication of acquired MR data by a function smoothly tapering off at higher spatial frequencies so as to reduce ringing artifacts near edges in the corresponding image or spectrum due to truncation and Gibbs phenomenon. It is a form of filtering.
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MRI Resources 
Fluorescence - - DICOM - Most Wanted - Equipment - Veterinary MRI
 
Rise TimeForum -
there are related threads
 
The time linearly from 0 to its maximum flat top measured in mT/m or G/cm. 10 mT/m=1G/cm. The height of the flat top influences the FOV. The higher the flat top or maximum gradient amplitude the smaller the FOV and the thinner the available slice thickness.
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Room Shielding
 
Magnetic shielding through the use of high permeability material in the walls (plus floor and ceiling) of the magnet room. Room shielding can be complete (e.g., six sides of a box, Faraday cage), or partial if the fringe field is to be reduced only in certain areas (see also Magnetic Shielding).
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Further Reading:
  Basics:
Faraday's Law
   by hyperphysics.phy-astr.gsu.edu    
  News & More:
Magnetic Sensitivity of MRI Systems to External Iron: The Design Process
   by www.integratedsoft.com    
Rotating Delivery of Excitation OffresonanceInfoSheet: - Sequences -
Intro, Overview, 
Types of, 
etc.
 
(RODEO) The software package Spiral RODEO™ MRI (including a patented fat and ductal tissue suppression technology), developed from Aurora Imaging Technology Inc, improves the spatial resolution and sensitivity for cancer detection in breast MRI examinations.

See also Aurora® 15T Dedicated Breast MRI System.
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MRI Resources 
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New acceleration techniques will :
reduce scan times 
cause artifacts 
increase expenses 
be useful if you have a lot of experience 
doesn't do much 
never heard of 

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 [last update: 2024-02-26 03:41:00]