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3 Dimensional Acquisition
 
Scanning of a volume instead of scanning single slices. The phase encoding gradient is used for two directions.
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Further Reading:
  Basics:
3-D VOLUMETRIC IMAGING FOR STEREOTACTIC LESIONAL AND DEEP BRAIN STIMULATION SURGERY
3D Software to Model the Whole Human Body
Thursday, 12 November 2009   by news.softpedia.com    
  News & More:
First 3D MRI scans of unborn babies
Monday, 30 November 2009   by news.bbc.co.uk    
Scans show how HIV attacks brain
Tuesday, 11 October 2005   by news.bbc.co.uk    
Cutting Edge Imaging of THE Spine
February 2007   by www.pubmedcentral.nih.gov    
3 Dimensional Fourier Transformation
 
(3D FT) A specialized 3D imaging technique that uses computer processing to combine individual slice acquisitions together to produce an image that represents length, width and height.
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Further Reading:
  News & More:
New MRI Approach Dramatically Speeds Up Results
Monday, 27 January 2014   by www.healthnewsdigest.com    
MRI Resources 
Universities - Manufacturers - Safety pool - General - Most Wanted - Blood Flow Imaging
 
3 Dimensional Imaging
 
A technique, which produces a 3 dimensional image of an object. The advantage of this approach is that the signal, acquired from the entire volume has an increased SNR. 'Slices' are defined by a second phase encoded axis, which divides the volume into 'partitions'. There is no gap between the slices in 3D volume imaging, therefore thin slices are possible. The Gz phase encoding gradient is set for several slices in one. But 3D takes more time with thin slices because of this phase encoding gradient. With conventional thin slice imaging, the SNR is poor, with 3D volume imaging this is not the case because the slab (volume) is responsible for SNR.
 
Images, Movies, Sliders:
 Brain MRI Sagittal T1 001  Open this link in a new window
 Axial Knee MRI Images T2 Weighted  Open this link in a new window
 
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• View the NEWS results for '3 Dimensional Imaging' (1).Open this link in a new window.

• View the DATABASE results for '3 Dimensional Imaging' (5).Open this link in a new window

 
Further Reading:
  Basics:
3D-DOCTOR Tutorial
   by www.ablesw.com    
  News & More:
3-D VOLUMETRIC IMAGING FOR STEREOTACTIC LESIONAL AND DEEP BRAIN STIMULATION SURGERY
Innovative 3D-imaging Technique Captures Brain Damage Linked To Alzheimer's Disease
Monday, 29 October 2007   by www.sciencedaily.com    
3 Dimensional Magnetic Resonance AngiographyInfoSheet: - Sequences -
Intro, Overview, 
Types of, 
etc.MRI Resource Directory:
 - MRA -
 
(3D MRA) The 3D angiography technique can be applied to focus on fast flowing (arterial) blood and to visualize small tortuous vessels. 3D TOF images are less sensitive to turbulent flow artifacts. The advantage of this approach is that the signal, acquired from the entire volume has an increased signal to noise ratio. Slices are defined by a second phase encoded axis, which divides the volume into 'partitions'. 3D TOF MRA is acquired with 3D FT slabs or multiple overlapping thin 3D FT slabs (MOTSA) depending on the coverage required and the range of flow-velocities under examination.
Such 3D techniques can provide equal spatial resolution along all three axes, i.e. be 'isotropic', or the partition thickness can be greater or less than the in plane spatial resolution in which case can be said to be 'anisotropic'. The circle of Willis, anatomy as well as its fast arterial flow, lends itself well to both 3D TOF and 2D or 3D phase contrast angiography.
 
Images, Movies, Sliders:
 CE MRA of the Aorta  Open this link in a new window
    
SlidersSliders Overview

 PCA-MRA 3D Brain Venography Colored MIP  Open this link in a new window
    

 CE-MRA of the Carotid Arteries Colored MIP  Open this link in a new window
    
SlidersSliders Overview

 Circle of Willis, Time of Flight, MIP  Open this link in a new window
    
SlidersSliders Overview

 
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• View the DATABASE results for '3 Dimensional Magnetic Resonance Angiography' (2).Open this link in a new window

 
Further Reading:
  Basics:
CHAPTER 55: Ischemia
2003
Magnetic resonance angiography: current status and future directions
Wednesday, 9 March 2011   by www.jcmr-online.com    
MRI Resources 
Non-English - MRA - Most Wanted - Colonography - MRI Accidents - Shielding
 
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