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How MRI Works - Part 4 - The Gradient Recalled Echo (GRE)
How MRI Works - Part 4 - The Gradient Recalled Echo (GRE) MRI Sequence
Part 1 - NMR Basics: czcams.com/video/TQegSF4ZiIQ/video.html
Part 2 - The Spin Echo: czcams.com/video/M7yh0To6Wbs/video.html
Part 3 - Fourier Theory and k-Space: czcams.com/video/R_4GuyJTzMo/video.html
Powerpoint slides from this lecture can be purchased here:
www.patreon.com/thePIRL769/shop/powerpoint-slides-how-mri-works-part-4-62225?source=storefront
0:00 - Intro
1:07 - NMR Review
2:14 - Laboratory/Rotating Reference Frames
4:18 - The Gradient Echo
7:28 - GRE Overview
10:52 - Scanner: B0 Magnet
12:57 - Scanner: Gradient Coils
16:45 - Scanner: RF Coil
19:23 - Slice Selection
26:46 - The Signal Equation
29:17 - Frequency Encoding
32:56 - Phase Encoding
36:20 - k-Space and Gradients
44:19 - k-Space and Signal
48:30 - The Gradient Recalled Echo Sequence
52:06 - Phase vs Frequency Encoding
55:42 - Echo Planar Imaging
56:23 - GRE Exercise and Outro
[1] mri-q.com/uploads/3/4/5/7/34572113/main_field_magnets_ismrm2006.pdf
zhlédnutí: 19 906

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