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


Out-
      side
 



 
 'Net Magnetization Vector' 
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 'Net Magnetization Vector' found in 1 term [] and 4 definitions [], (+ 15 Boolean[] results
1 - 5 (of 20)     next
Result Pages : [1]  [2 3 4]
MRI Resources 
Health - Stimulator pool - Sequences - Distributors - Examinations - Claustrophobia
 
Net Magnetization Vector
 
Hydrogen nuclei magnetic moments are randomly oriented in the absence of an external magnetic field and are considered to have a net magnetization of zero. Once hydrogen protons are placed in the presence of an external magnetic field, they align themselves in one of two directions, parallel or anti parallel to the net magnetic field, which is commonly referred to as the vector B0. The parallel and anti parallel protons cancel each other out, only the small number of low energy protons left aligned with the magnetic field create the overall net magnetization, this difference is all that counts. The magnetic moments of these protons are added together and are referred to as net magnetization vector (NMV) or the symbol 'M'.
See also Magnetization Transfer Contrast.
spacer
 
• Share the entry 'Net Magnetization Vector':  Facebook  Twitter  LinkedIn  
 
• Related Searches:
    • Free Induction Decay
    • Arterial Spin Labeling
    • Resonance Frequency
    • Magnitude
    • Gyromagnetic Ratio
 
Further Reading:
  Basics:
Mapping of low flip angles in magnetic resonance(.pdf)
Saturday, 1 January 2011   by www.hal.inserm.fr    
MRI Resources 
Portals - MRI Technician and Technologist Career - Crystallography - Shielding - Non-English - Databases
 
Longitudinal Magnetization
 
(Mz) The component of the net magnetization vector in the direction of the static magnetic field (z). After RF excitation, this vector returns to its equilibrium value at a rate characterized by the time constant T1.
spacer

• View the DATABASE results for 'Longitudinal Magnetization' (25).Open this link in a new window

MRI Resources 
Bioinformatics - MRI Physics - Jobs - Stent - Musculoskeletal and Joint MRI - Service and Support
 
MagnitudeForum -
related threads
 
In physics, the magnitude (length) of a vector is a scalar in the physical sense, i.e. a physical quantity independent of the coordinate system, expressed as the product of a numerical value and a physical unit, not just a number.
See also Longitudinal Magnetization and Net Magnetization Vector.
spacer

• View the DATABASE results for 'Magnitude' (26).Open this link in a new window

 
Further Reading:
  Basics:
Less fit marathoners prone to heart damage for 3 months after race
Monday, 25 October 2010   by sify.com    
  News & More:
Medical Magnetic Resonance Imaging (MRI): Technologies and Global Markets
Wednesday, 9 October 2013   by www.digitaljournal.com    
MRI Resources 
Supplies - Software - Homepages - Breast Implant - Shoulder MRI - DICOM
 
Tip Angle
 
Angle between the net magnetization vector before and after a RF excitation pulse. Small tip angles allow a decrease in TR, which is used to decrease scan time in Field Echo pulse sequences. See Flip Angle.
spacer

• View the DATABASE results for 'Tip Angle' (5).Open this link in a new window

 
Further Reading:
  Basics:
Mapping of low flip angles in magnetic resonance(.pdf)
Saturday, 1 January 2011   by www.hal.inserm.fr    
MRI Resources 
Veterinary MRI - Libraries - Case Studies - Calculation - Cochlear Implant - Cardiovascular Imaging
 
Transverse Magnetization
 
The xy component of the net magnetization vector at right angles to the main magnetic field. The precession of the transverse magnetization at the Larmor frequency is responsible for the detectable MRI signal. In the absence of externally applied RF energy, the transverse magnetization will decay to zero with a characteristic time constant of T2, or more strictly T2*.
spacer

• View the DATABASE results for 'Transverse Magnetization' (43).Open this link in a new window

 
Further Reading:
  Basics:
Measuring T1 and T2 Relaxation - Introductory NMR & MRI from Magritek
   by www.azom.com    
MRI Resources 
Education - Spine MRI - Supplies - Manufacturers - Bioinformatics - Journals
 
     1 - 5 (of 20)     next
Result Pages : [1]  [2 3 4]
 Random Page
 
Share This Page
FacebookTwitterLinkedIn

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



In 2075 (after about 100 years of ...) the MRI scan will be :
obsolete 
done with handheld probe 
done at home (app, ...) 
a 3 second walk through 
daily done 
replaced by something much ... 

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 • US-TIP • 
Copyright © 2003 - 2018 SoftWays. All rights reserved. [ 17 February 2019]
Terms of Use | Privacy Policy | Advertising
 [last update: 2018-03-08 05:11:00]