Principles of MRI
Physics and Engineering

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A 2x2 Matrix

Gradient Echo Imaging

MRI Pulse Sequence for Gradient Echo Imaging

K-space view of the gradient echo imaging

Spin Echo Imaging

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The Concept of Contrast (or Weighting)

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Proton Density Contrast

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T2* and T2 Contrast

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T1 Contrast

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Other Imaging Methods

MR Angiogram

Time-of-Flight Contrast

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Diffusion Weighted Imaging Sequences

Pulse Sequence: Gradient-Echo Diffusion Weighting

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Advantages of DWI

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Perfusion/Flow Weighted
Arterial Spin Labeling

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Advantages of ASL Perfusion Imaging

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Other Interesting Types of Contrast

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Fast Imaging

Echo Planar Imaging (EPI)

GE-EPI Pulse Sequence

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Why EPI?

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K-Space Representation of
Spiral Image Acquisition

Why Spiral?

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