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


Out-
      side
 



 
 MRI Database 
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
1 - 5 (of 77)     next 
DA-Da     Da-De   De-De   De-De   De-De   De-Di   Di-Di   Di-Di   Di-Di   Di-Do   Do-Do   Do-Dr   Dr-Du   Du-Du   Dw-Dy   Dy-Dy   
MRI Resources 
Mass Spectrometry - Distributors - Examinations - Stent - Services and Supplies - Chemistry
 
DAB-Am64-(1B4M-Gd)64InfoSheet: - Contrast Agents - 
Intro, Overview, 
Characteristics, 
Types of, 
etc.
 
DAB-Am64-(1B4M-Gd)64 is a new macromolecular MRI contrast agent for the diagnosis of liver micro-metastasis, consisting of a polypropylenimine diaminobutane (DAB) dendrimer conjugated with a bifunctional DTPA derivative complexing Gd(III).
spacer
Daily Quality AssuranceMRI Resource Directory:
 - Quality Advice -
 
(DQA) This MRI scan or MRI procedure is used by system operators to verify system operation based on relevant image quality parameters like e.g., SNR, slice thickness, geometric distortion, slice position, image resolution and ghosting.
The quality assurance should carry out according to instructions of the manufacturer, normally using the head coil. In addition, SNR can be measured monthly on a selection of commonly used coils. Weekly recording of these parameters is recommended for clinical MRI machines, as this allows early detecting of deviations from acceptable limits.

spacer

• View the DATABASE results for 'Daily Quality Assurance' (3).Open this link in a new window

 
Further Reading:
  News & More:
MRI Quality Control Program
   by www.simplyphysics.com    
MRI Resources 
Spine MRI - Image Quality - Safety Products - Cochlear Implant - Distributors - General
 
Dark Boundary ArtifactInfoSheet: - Artifacts -
Case Studies, 
Reduction Index, 
etc.MRI Resource Directory:
 - Artifacts -
 
See Black Boundary Artifact.

spacer
 
Further Reading:
  News & More:
What is chemical shift artefact? Why does it occur? How many Hz at 1.5 T?
   by www.revisemri.com    
Data Acquisition Time
 
The time required to carry out a MR imaging. The total image acquisition time will be equal to the product of repetition time (TR), number of signals averaged (NSA), and the number of different signals (encoded for position) to be acquired for use in image reconstruction. The additional image reconstruction time will also be important to determine how quickly the image can be viewed. In comparing sequential plane imaging and volume imaging techniques, the equivalent image acquisition time per slice must be considered as well as the actual image acquisition time.

spacer

• View the NEWS results for 'Data Acquisition Time' (1).Open this link in a new window.

• View the DATABASE results for 'Data Acquisition Time' (3).Open this link in a new window

 
Further Reading:
  Basics:
Clinical evaluation of a speed optimized T2 weighted fast spin echo sequence at 3.0 T using variable flip angle refocusing, half-Fourier acquisition and parallel imaging
Wednesday, 25 October 2006
Data Clipping (Artifact)InfoSheet: - Artifacts -
Case Studies, 
Reduction Index, 
etc.MRI Resource Directory:
 - Artifacts -
 
Data clipping artifacts give images a washed-out, non-uniform appearance. If the receiver gain increase, so that the signal level is larger than the maximum ADC value, the reconstructed image brightness was scaled to compensate this. The overall intensity loss as well as the extensive signal is reconstructed outside of the object. This effect is called 'clipping' because on a plot of signal amplitude vs. time, it looks like the top and bottom of the echo has been 'clipped off' with scissors.
See Radio Frequency Overflow Artifact.
spacer
MRI Resources 
Fluorescence - Spectroscopy - Education - Stimulator pool - General - Jobs
 
    1 - 5 (of 77)      next 
 DA-Da    Da-De   De-De   De-De   De-De   De-Di   Di-Di   Di-Di   Di-Di   Di-Do   Do-Do   Do-Dr   Dr-Du   Du-Du   Dw-Dy   Dy-Dy   
 Random Page
 
Share This Page
FacebookTwitterLinkedIn

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



In 2020 your scanner will probably work with a field strength of :
lower 
1T 
1.5T 
2T 
3T 
7T 
higher 

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. [ 25 February 2017]
Terms of Use | Privacy Policy | Advertising
 [last update: 2017-02-21 00:45:00]