MRI

Signal Creation, Detection, Localisation
Magnetism and Principles of NMR
3 Topics
Magnetism
Electromagnetism
Principle of NMR
MR Signal and Signal Detection
2 Topics
MR Signal
Signal Detection
T2* and Spin Echo
2 Topics
T2* Relaxation
Spin Echo
Resonance, Frequency and Time Domain Data
2 Topics
Review of Resonance
Frequency and Time Domain Data
Spatial Localisation
4 Topics
Gradients
Slices and Spatial Localisation
Axial Slice Selection
Slice Thickness
Frequency Encoding, Phase Encoding and K-Space
3 Topics
Frequency Encoding
Phase Encoding
K-Space
The Hardware: Magnets and Coils
5 Topics
Hardware Overview
The Magnet
Types of Magnet
B0 Field Uniformity
Gradients and Gradient Coils
Signal to Noise Ratio and Image Reconstruction
2 Topics
Signal to Noise Ratio
Reconstruction
Contrast Mechanisms
Image Contrast and Contrast Mechanisms
Transverse and Longitudinal Relaxation
2 Topics
Relaxation
T1 and T2 Relaxation Mechanisms
Parameters for Generating the Images
3 Topics
T1, T2 and PD Weighted Imaging
Spin Echo
T2w vs T2*w
MRI Contrast Agents
Contrast Mechanisms Summary
Sequences
Gradient Echo and Spin Echo
5 Topics
Free Induction Decay
Gradient Echo
Spin Echo
Gradient Echo vs Spin Echo
T2 vs T2*
Rapid Imaging Sequences
8 Topics
RARE/FSE/TSE
Single Shot FSE/TSE or HASTE
Gradient Echo Planar Imaging
Single Shot T2 Imaging
Fast Gradient Echo
Three Types of Gradient Echo
The Gradient Echo Acronyms
Spoiled T1 vs bSSFP T2/T1
Frequency Dependent Techniques
Fat Suppression
6 Topics
Fat
Chemical Shift
In and Out of Phase
CHESS Fat Suppression
Fat Sat vs STIR
Dixon Acquisition
Principles of Magnetic Resonance Spectroscopy (MRS)
8 Topics
MRS Introduction and Basis
Problem with Water
Frequency Units and Field Strength
Comparison of MRS and MRI
Shimming
Biologically Relevant NMR Visible Nuclei
J-Coupling
MRS – Summary
In-Vivo MRS
5 Topics
In-vivo MRS
Brain Metabolites
Metabolites – Myo-Inositol
Metabolites – Citrate
MRS in Humans – What Can Be Seen?
MRS Signal – Single Voxel and Spectroscopic Imaging
3 Topics
Localising MRS Signal
Single Voxel MRS
MR Spectroscopic Imaging
Clinical Applications
4 Topics
Brain Tumour Classification
Hypoxic Injury
Normal Brain
Prostate MRSI
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Signal to Noise Ratio and Image Reconstruction

MRI Signal to Noise Ratio and Image Reconstruction

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