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Introduction to Principles of MRI

Magnetic Resonance Physics

Spin Physics
Bloch Equation
In Vivo Spin Physics

MRI System

The MRI System
Magnetic fields in MRI

MRI Experiment

The Pulse Sequence
The MRI Signal Equation

Contrast

Basic Contrast Mechanisms
In Vivo Contrast Mechanisms
Gradient and Spin Echo Pulse Sequences
Image Contrast Examples

Radiofrequency Pulses

RF Pulses
Slice Selection
RF Pulse Design

Image Formation

Spatial Encoding
K-space
Image Reconstruction

Image Characteristics

Field of View (FOV) and Resolution
Scan Time and Signal to Noise Ratio (SNR)
Cartesian Sampling Image Characteristics

Fast Imaging Methods

Volumetric Imaging
Fast Imaging Pulse Sequences
Accelerated Imaging Methods

Imperfections and Artifacts

Point Spread Function Analysis
Artifacts

Summary

Key MRI Concepts and Equations
MRI Questions

Reference Material

MRI Notation and Terminology
MRI Math Concepts
MRI Software Resources

Advanced and Fun Topics

Excitation K-space and Multidimensional RF Pulses
Spectral-Spatial RF Pulses
Fun with RF Pulses?
Advanced SNR
Advanced Image Reconstruction

Repository
Open issue

Index

By Peder Larson

© Copyright 2025.

Citation - DOI 10.5281/zenodo.5547020