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Result : Searchterm 'Echo' found in 100 terms [] and 162 definitions []
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Searchterm 'Echo' was also found in the following services: 
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Spin Echo Imaging
 
MR imaging technique in which the spin echo is used rather than the FID. The proper selection of the echo and repetition time of the pulse sequence can help to control the amount of T1 or T2 contrast present in the image. Spin echo imaging can be used to create images that depend strongly on T2 if TE has a value on the order of or greater than T2 of the relevant image details. The spin echoes can be produced as a train of multiple echoes, e.g. using the CPMG pulse sequence.

See also Spin Echo Sequence.
 
Images, Movies, Sliders:
 Lumbar Spine T1 SE Sagittal  Open this link in a new window
    

Courtesy of  Robert R. Edelman
 MRI Orbita T1  Open this link in a new window
    
 
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Radiology  (4) Open this link in a new windowUltrasound  (159) Open this link in a new window
Dual Echo SequenceInfoSheet: - Sequences - 
Intro, 
Overview, 
Types of, 
etc.
 
(DE - dual / double echo) Dual echo sequences include images with different weightings and / or echo times and are used to obtain both, proton density and T2 weighted images or in phase and out of phase gradient echo images, simultaneously without increasing the measurement time.
 
Images, Movies, Sliders:
 MRI Liver In Phase  Open this link in a new window
 MRI Liver Out Of Phase  Open this link in a new window
 
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• View the DATABASE results for 'Dual Echo Sequence' (3).Open this link in a new window

 
Further Reading:
  Basics:
BASIC PRINCIPLES OF MR IMAGING
   by spinwarp.ucsd.edu    
MRI evaluation of fatty liver in day to day practice: Quantitative and qualitative methods
Wednesday, 3 September 2014   by www.sciencedirect.com    
  News & More:
Iron overload: accuracy of in-phase and out-of-phase MRI as a quick method to evaluate liver iron load in haematological malignancies and chronic liver disease
Friday, 1 June 2012   by www.ncbi.nlm.nih.gov    
MRI Resources 
Diffusion Weighted Imaging - MRI Reimbursement - Chemistry - Raman Spectroscopy - Quality Advice - MRI Technician and Technologist Career
 
Modified Spin EchoInfoSheet: - Sequences - 
Intro, 
Overview, 
Types of, 
etc.
 
(MSE) A spin echo technique with a flip angle over 90°.

See Spin Echo Sequence and Fast Spin Echo.
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News  (7)  Resources  (10)  Forum  (35)  
 
Multi Echo Imaging
 
Multi echo imaging sequences use a series of echoes acquired as a train following after a single excitation pulse. Multiple symmetrical or asymmetrical echoes can be acquired, typically T2 weighted. In spin echo imaging, each echo is formed by a 180° pulse, but also a FSE (TSE, RARE) or EPI sequence can be used. As a difference to a normal fast spin echo sequence, in multi echo imaging, separate images are produced from each echo of the train with different T2 weightings. The signal height reduces with transverse relaxation. This drop in signal can be used to calculate a pure T2 image.

See also Fast Spin Echo.
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• View the DATABASE results for 'Multi Echo Imaging' (3).Open this link in a new window

 
Further Reading:
  Basics:
A very simple, robust and fast method for estimating and displaying average time constants of T2 decays from multiecho MRI images using color intensity projections
   by arxiv.org    
What MRI Sequences Produce the Highest Specific Absorption Rate (SAR), and Is There Something We Should Be Doing to Reduce the SAR During Standard Examinations?
Thursday, 16 April 2015   by www.ajronline.org    
  News & More:
Automatic Mapping Extraction from Multiecho T2-Star Weighted Magnetic Resonance Images for Improving Morphological Evaluations in Human Brain
Wednesday, 5 June 2013   by www.hindawi.com    
RARE
Monday, 3 December 2012   by www2.warwick.ac.uk    
Searchterm 'Echo' was also found in the following services: 
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Radiology  (4) Open this link in a new windowUltrasound  (159) Open this link in a new window
Multiple Spin Echo
 
A pulse sequence leading to the production of multiple spin echoes after an initial excitation.
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MRI Resources 
Cochlear Implant - MRI Technician and Technologist Schools - Image Quality - - MRI Reimbursement - Pregnancy
 
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