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


Out-
      side
 



 
 'Incoherent Gradient Echo (RF spoiled)' 
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 'Incoherent Gradient Echo (RF spoiled)' found in 1 term [] and 0 definition []
1 (of 1)     
Result Pages : [1]
MRI Resources 
MRI Reimbursement - Artifacts - Health - Directories - Resources - Anatomy
 
Incoherent Gradient Echo (RF Spoiled)InfoSheet: - Sequences - 
Intro, 
Overview, 
Types of, 
etc.
 
A gradient echo is generated by using a pair of bipolar gradient pulses. The gradient field is negatively pulsed, causing the spins of the xy-magnetization to dephase. A second gradient pulse is applied with the opposite polarity. During the pulsing, the spins that dephased begin to rephase and generate a gradient echo.
Spoiling can be accomplished by RF or a gradient. The incoherent RF spoiled type of a gradient echo sequence use a continuous shifting of the RF pulse to spoil the residual transverse magnetization. The phase of the RF excitation and receiver channel are varied pseudo randomly with each excitation cycle to prevent the xy magnetization from achieving steady state. T2* does not dominate image contrast, so T1 and PD weighting is practical. This method is effective and can be used to achieve a shorter TR, due to a lack of additional gradients. Spoiling eliminates the effect of the remaining xy-magnetization and leads to steady state longitudinal magnetization. These sequences can be used for breath hold, dynamic imaging and in cine and volume acquisitions.
spacer
 
• Share the entry 'Incoherent Gradient Echo (RF Spoiled)':  Facebook  Twitter  LinkedIn  
 
• Related Searches:
    • Coherent
    • Radio Frequency Pulse
    • Spoiled Gradient Echo Sequence
    • Ernst Angle
    • Bipolar Gradient Pulse
MRI Resources 
Movies - MRI Technician and Technologist Jobs - Mobile MRI Rental - MRCP - Contrast Enhanced MRI - Resources
 
     1 (of 1)     
Result Pages : [1]
 Random Page
 
Share This Page
FacebookTwitterLinkedIn

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



Your MRI scanner(s) in 5 years should be :
more automated 
much quicker 
quiet 
voice controlled 
iPhone compatible 
as it is right now 

Look
      Ups





Magnetic Resonance - Technology Information Portal
Member of SoftWays' Medical Imaging Group - MR-TIP • Radiology-TIP • US-TIP • The-Medical-Market
Copyright © 2003 - 2016 SoftWays. All rights reserved. [ 18 January 2017]
Terms of Use | Privacy Policy | Advertising
 [last update: 2017-01-13 03:47:00]