Magnetic Resonance - Technology Information Portal Welcome to MRI Technology
Info
  Sheets

Out-
      side
 



 
 'Echo' 
SEARCH FOR    
 
  2 3 5 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Result : Searchterm 'Echo' found in 100 terms [] and 162 definitions []
previous     66 - 70 (of 262)     next
Result Pages : [1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20]  [ ... ]
Searchterm 'Echo' was also found in the following services: 
spacer
News  (7)  Resources  (10)  Forum  (35)  
 
Partial Saturation Spin EchoInfoSheet: - Sequences - 
Intro, 
Overview, 
Types of, 
etc.
 
(PSSE) Partial saturation sequence in which the signal is detected as a spin echo. Even though a spin echo is used, there will not necessarily be a significant contribution of the T2 relaxation time to image contrast, unless the echo time, TE, is on the order of or longer than T2.
spacer
Searchterm 'Echo' was also found in the following services: 
spacer
Radiology  (4) Open this link in a new windowUltrasound  (159) Open this link in a new window
Turbo Spin Echo Turbo Factor
 
(TSE TF) The turbo factor is the number of echoes acquired after each excitation. This is a measure of the scan time acceleration, e.g. at turbo factor 3 the scan time is 3 times faster as a SE sequence with comparable parameters. In combination with profile order and effective echo time the TSE turbo factor controls the echo spacing.

See also Scan Time and Echo Spacing.
spacer

• View the DATABASE results for 'Turbo Spin Echo Turbo Factor' (5).Open this link in a new window

 
Further Reading:
  News & More:
Comparison of Fast Spin-Echo Versus Conventional Spin-Echo MRI forEvaluating Meniscal Tears
June 2005   by www.ajronline.org    
MRI Resources 
Blood Flow Imaging - Liver Imaging - RIS - Resources - MR Myelography - MRI Reimbursement
 
Small Tip Angle Gradient EchoInfoSheet: - Sequences - 
Intro, 
Overview, 
Types of, 
etc.MRI Resource Directory:
 - Sequences -
 
(STAGE) A gradient echo sequence with low flip angles and spoiled gradients.
See Spoiled Gradient Echo Sequence.
spacer

• View the DATABASE results for 'Small Tip Angle Gradient Echo' (3).Open this link in a new window

Searchterm 'Echo' was also found in the following services: 
spacer
News  (7)  Resources  (10)  Forum  (35)  
 
Fast Low Angle Recalled EchoesInfoSheet: - Sequences - 
Intro, 
Overview, 
Types of, 
etc.
 
(FLARE) Fast Low Angle Recalled Echoes is a gradient echo sequence, typically with low flip angles and refocused gradient echo.

See also Refocused Gradient Echo Sequence and Flip Angle.
spacer
Searchterm 'Echo' was also found in the following services: 
spacer
Radiology  (4) Open this link in a new windowUltrasound  (159) Open this link in a new window
Fast Relaxation Fast Spin EchoInfoSheet: - Sequences - 
Intro, 
Overview, 
Types of, 
etc.
 
(FRFSE, FR-FSE) The fast relaxation fast spin echo sequence provides high signal intensity of fluids even with short repetition times, and can be used with parallel imaging techniques for short breath hold imaging or respiratory gating for free-breathing, high isotropic resolution MR imaging. After signal decay at the end of the echo train, a negative 90° pulse align spins with long T2 from the transverse plane to the longitudinal plane, leading to a much faster recovery of tissues with long T2 time to the equilibrium and thus better contrast between tissues with long and short T2.
Fast relaxation FSE has advantages also for volumetric imaging as the TR can be substantially reduced and thus the scan time. The sequence can be post processed with maximum intensity projection, surface or volume rendering algorithms to visualize anatomical details in brain or spine MRI. Cerebro spinal fluid pulsation artifacts, often problematic in the cervical or thoracic spine may be reduced by radial sampling, in particular when combined with acquisitions of the PROPELLER type.

See also Fast spin echo, Driven Equilibrium.
 
Images, Movies, Sliders:
 Shoulder Sagittal T2 FatSat FRFSE  Open this link in a new window
    

Courtesy of  Robert R. Edelman
 Shoulder Axial T2 FatSat FRFSE  Open this link in a new window
 Shoulder Coronal T2 FatSat FRFSE  Open this link in a new window
    

Courtesy of  Robert R. Edelman
 
spacer
MRI Resources 
Education - Most Wanted - Examinations - Raman Spectroscopy - Calculation - Implant and Prosthesis
 
previous      66 - 70 (of 262)     next
Result Pages : [1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20]  [ ... ]
 Random Page
 
Share This Page
FacebookTwitterLinkedIn

MR-TIP    
Community   
User
Pass
Forgot your UserID/Password ?    



How AI will impact MRI :
only diagnostics 
saving time 
reducing cost 
makes planning obsolete 
reduce human knowledge 
not at all 

Look
      Ups





MR-TIP.com uses cookies! By browsing MR-TIP.com, you agree to our use of cookies.

Magnetic Resonance - Technology Information Portal
Member of SoftWays' Medical Imaging Group - MR-TIP • Radiology-TIP • Medical-Ultrasound-Imaging • 
Copyright © 2003 - 2024 SoftWays. All rights reserved. [ 24 December 2024]
Terms of Use | Privacy Policy | Advertising
 [last update: 2024-02-26 03:41:00]