SOP series: Introduction to qMRLab and installation

B1 mapping series: Actual Flip angle Imaging (AFI)

Interactive tutorial about B1 mapping using the Actual Flip angle Imaging (AFI) technique.

Interactive T1 mapping book

Interactive tutorial on T1 mapping techniques (Inversion recovery, Variable Flip Angle, and MP2RAGE).

The Double Helix and MRI Part 2: qMRI-BIDS

The analogy between genetics and MRI will continue on a metaphorical level as we dive into our cellular machinery and qMRI-BIDS (Karakuzu et al. 2022)....

The Double Helix and MRI Part 1: DNA is Quantitative, MRI Is Not.

Quantitative MRI (qMRI) lends itself well to metaphors, from jelly beans and symphonic orchestras to alphabet soups and Bento boxes... And DNA!

Quantitative magnetization transfer using spoiled gradient echo

Interactive tutorial about quantitative magnetization transfer mapping. The qMT using spoiled gradient echo (qMT-SPGR) is introduced with qMT theory, signal modelling and data fitting.

Continuous Integration and Delivery with MATLAB

Would you like to run your tests in MATLAB on every change to your codebase? Or perhaps you want to build and Dockerize your MATLAB...

On the open source landscape of MRM

Being involved in several open source projects (qMRLab, AxonDeepSeg) and initiatives dealing with open science in publishing (NeuroLibre, Canadian Open Neuroscience Platform), I was curious...

New filtering module

Most studies that use B1 maps do not use the raw maps; instead, they are typically filtered during a pre-processing step to reduce effects like...

MRathon 2019: Plenary Talks

This year, we organized the MRathon, a hackathon for MR professionals held in Montréal just before the 2019 ISMRM meeting. Hosted at Polytechnique de Montréal...

Relaxometry Series: MP2RAGE

Dictionary-based MRI techniques capable of generating T1 maps are increasing in popularity, due to their growing availability on clinical scanners, rapid scan times, and fast...

NeuroImage special issue on microstructure

On November 15 the Neuroimage special issue on microstructure was officially out. Two years in the making, the special issue collected 39 scientific articles by...

Relaxometry Series: Variable Flip Angle

Variable flip angle (VFA) T1 mapping (Christensen et al. 1974; Gupta 1977; Fram et al. 1987), also known as Driven Equilibrium Single Pulse Observation of...

The Problem

In the previous post, we briefly mentioned about the promise of qMRI in supplementing conventional MR images with objective qMaps. Now we are shifting gears...

A bird's-eye view of the inversion recovery T1 mapping interactive tutorial

Two weeks ago we posted an interactive tutorial about inversion recovery T1 mapping. There are many hidden features in this post, so we created a...

Relaxometry Series: Inversion Recovery

Widely considered the gold standard for T1 mapping, the inversion recovery technique estimates T1 values by fitting the signal recovery curve acquired at different delays...

Every MR image is a symphony, every qMRI map is an instrument

Let’s admit, it is often difficult to explain our research to the people outside of our lab. Given that they are the ones expected to...

Hello world

Magnetic resonance imaging (MRI) is an indispensable part of a radiologist’s toolbox. But MR images (MRIs) are not for radiologists only. A growing number of...

qMRLab in a Jupyter Notebook: A tutorial for Win10 users

Imagine that you are exploring a new qMRI analysis method. The code is open in an editor window and your command window is swarmed with...