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Lectures and Teaching Material
Below is an archive of various lectures, demo code and animations on MRI physics that I have written over the years. Feel free to use them for your own education. I am usually happy for people to use this material in their own educational presentations, but please contact me first (karla@fmrib.ox.ac.uk). I try to keep track of my material, and will typically just ask for an acknowledgment.
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Lectures |
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Demo Code |
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Animations |
Lectures:
These lectures were converted to HTML from Keynote using the steps described here.
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MRI Physics | |
(Aimed at neuroscientists) |
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| MRI Physics Overview | FMRIB Graduate Course (Induction Week) |
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| Foundations of MRI Physics | FMRIB Graduate Course | ||||
| Complex Numbers & Fourier Transforms | FMRIB Graduate Course | ||||
| Image Formation | FMRIB Graduate Course | ||||
| Pulse Sequences and the MRI Signal |
FMRIB Graduate Course | ||||
| (Aimed at physicists) |
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| Steady-state sequences |
ISMRM 2010-11 |
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| Functional MRI | (Various miscellaneous lectures) |
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| FMRI Acquisition Methods |
MIAS 2006 |
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| FMRI for Clincians |
ISMRM 2009-11 | ||||
| 3D Methods for High-Resolution FMRI |
OHBM 2007 | ||||
| Diffusion MRI | (Various miscellaneous lectures) | ||||
| Introduction to Diffusion Imaging |
FMRIB Graduate Course |
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| Diffusion Sequences and Artefacts |
ISMRM 2008 | ||||
| Diffusion Acquisition |
ESMRMB 2010 |
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| Combined topics |
(Aimed at non-physicists) |
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| Intro MRI and functional MRI |
FSL Course 2010 |
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| Further MRI and diffusion imaging |
FSL Course 2010 |
Matlab code:
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Steady-state MRI |
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Phase graph and steady-state matrix calculations, with examples. |
| 3D Vectors |
Code for drawing pretty 3D arrows (used in phase graph animations below) |
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Animations:
In addition to my animations (below), I recommend these movies created by Bill Overall. You can create similar custom animations of MRI physics using Bill's MRI simulation software SpinBench (Mac only). I've found it important to brighten these animations or they appear too dark on overhead projectors.
If you want to create your own animations in Matlab, I've written a brief description of how I generated the animated gifs below.
If you want to use these animations in your presentations, please contact me. I will typically just request an acknowledgment. Some of these animations were created using SpinBench, which should also be acknowledged.
| Magnetization |
Spin echoes |
magnetization dephasing |
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| refocusing pulse |
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| magnetization dephasing & rephasing |
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Gradient fields |
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Signal from toy experiment |
two oscillators in a gradient | |||
| Evolving spatial frequencies |
x gradient and x-y gradient |
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| Signal from brain in gradient fields | y gradient and x-y gradient | ||||||
| k-space trajectories |
Gradients & k-space during readout |
2DFT (multi-shot linescan) | |||||
| EPI (single shot) |
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| Phase graphs |
State evolution |
dephasing and rephasing states |
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| miscellaneous states (static figures) | |||||||
| Steady-state MRI | Approach to steady state |
long TR or short TR | |||||
| Spoiled sequences | FISP and PSIF | ||||||
| Balanced SSFP | flip 5o: on resonance and off resonance | ||||||
| flip 45o: on resonance and off resonance | |||||||
| flip45o: range of resonance frequencies | |||||||
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Diffusion MRI |
GRE diffusion module | without diffusion and with diffusion | ||||
| SE diffusion module | without diffusion and with diffusion | ||||||
| Particle diffusion | isotropic and anisotropic | ||||||
| Functional MRI |
BOLD dephasing in vessel network | |
dynamic background and static background | ||||
| Signal dropout |
dephasing near sinuses |
All material on this page © Copyright Karla Miller.