SEPIA 101 - First QSM with SEPIA
Objectives
Understanding the background of magnetic susceptibility contrast
Gaining experience in basic QSM post-processing in SEPIA framework
Target Audience
who is new to SEPIA
who wants to know some basic knowledge about QSM
Estimated Time
About 1 hour
Prerequisite
Please install SEPIA in the Matlab environment. You can find the information about the installation procedures in Download.
Introduction
In this tutorial, we will go through the standard processing pipeline for quantitative susceptibility mapping (QSM), a novel contrast mechanism that uses to study tissue magnetic properties, in SEPIA framework.
Figure 1: QSM theory. A magnetic source generates a secondary magnetic field inside the MRI scanner, which will eventually alter the signal phase we measured. Decoding the phase data allows us to detect the molecular environment of the brain tissues.
Exercises
Let’s begin with the following exercises that will take you from the phase data to the susceptibility maps!