News and Events


Here you can find important dates and deadlines for ASL related conferences, meetings and lectures. Also the latest news of the ASL community are published here.

If you have any news to share with the ASL Network, i.e. new EU projects, or you would like to point out an event that has not been listed here, please send an email to


Recent ASL paper: Multi-vendor reliability of arterial spin labeling perfusion MRI using a near-identical sequence: Implications for multi-center studies.

We would like to draw you attention to a collaboration study of many research groups participating in the COST Action AID. In this work, the reliability of ASL sequences between different vendors was investigated.

ASL multi-vendor reliability paper


COST Meeting ASL in Dementia
4 – 6 October 2015

Airth Castle Hotel & Spa:
Airth, Stirlingshire, Scotland, FK2 8JF (40 min away from Edinburgh)

Please make your reservation known to the Hotel, at best by filling up the attached registration form: Reservation Form
or by contacting the Hotel directly using the following information:
Contact: Airth Castle Reservations
Telephone No:  +44 (0)1324 832933
Ref to quote: 0410AID

Everyone should book the hotel with their own credit card, and note that since a double-room sharing will be charged at £99 per 24 hours, we will get a reimbursement package of €140 (€100 per night + €40 for two meals per day) per person included on the COST Action website. You are welcome to stay alone in a room, but you will pay for the extra cost on your own (£26 per person and per day additional costs). These restrictions were implemented as the total amount of money available is less than usual, and as such, please pay particular attention to the general costs of travelling. We do have some money, but please try to maintain these costs low by booking your flights early.

Please register for the meeting by accepting the invitation sent to you via eCost and by sending the attached booking form to the meeting venue. With regard to hotel bookings, please note that only 2 nights will be reimbursed.

Regarding the meeting schedule, please be informed that the meeting starts at 5pm on Sunday, October 4 and finishes at 5pm on Tuesday, October 6. Furthermore, a bus from Edinburgh city centre leaving at around 2pm on Sunday to the Castle, and back at 5:30 pm from the Castle back to the airport will be organised.


ESMRM 32nd Annual Scientific Meeting
1 – 3 October 2015
Edinburgh, UK

ESMRMB 2015 Congress


School of MRI 2015:
Advanced Neuro Imaging: Diffusion, Perfusion, Spectroscopy
3 – 5 September 2015
Ljubljana, SI

School of MRI 2015


ASL ‘white’ paper: Recommended implementation of arterial spin-labeled perfusion MRI for clinical applications: A consensus of the ISMRM perfusion study group and the European consortium for ASL in dementia

Here you can find the accepted version of the ASL position or ‘white’ paper, which, thanks to the tremendous work and involvement of all authors, hopefully reflects a consensus position of the entire community on what are the best sequences and parameters to use when measuring perfusion with ASL in the clinics.

ASL white paper


Technical Background of ASL in Dementia, Training School
September 30 – October 2, 2013
Toulouse, France

Here you find the presentations for download:

September 30, 2013   ASL Basics

Welcome to the training school, Jan Warnking
ASL acquisition basics – labeling and acquisition, Jan Warnking
ASL post-processing basics, Isabelle Corouge and Jan Warnking
ASL quantification basics, Thijs van Osch
Physiology basics, Egill Rostrup
Pseudo-continuous labeling, Thijs van Osch

Round table introduction, all participants

Auto-evaluation Monday courses

October 01, 2013   Aquisition

Review of existing studies on ASL in dementia, Marion Smits
Readouts I, Matthias Guenther
Readouts II, Jan Warnking
Practical exercises on readouts, lead by Matthias Guenther
Background suppression, Jan Warnking
Multi TI and ATT mapping and support data acquisition, Esben Thade Petersen

Auto-evaluation Tuesday courses

October 02, 2013   Image Processing

Pre-processing: motion correction, denoising, outlier detection, Alessandra Bertoldo
Post-processing: kinetics and M0 estimation, Michael Chappel
Post-processing: normalization and partial volume correction, Michael Chappel
Detecting perfusion abnormalities at the group and the individual level. Random-effects and Mixed-effects GLM, Camille Maumet
Multi TI modelling and model considerations to ASL in dementia, Michael Chappel

Data processing workshop/demonstration, Michael Chappel



Arterial Spin Labelling (ASL) Training School
July 4-6, 2013
Verona, Italy
Here you find the presentations for download:

July 4, 2013  Acquisition

Measurement of perfusion and Free Diffusible Tracer theory, Matthias Guenther
ASL Basics I, Maria Fernandez Seara
ASL Basics II, Maria Fernandez Seara
Quantification, Matthias Guenther

Workshop – file 1 and file 2

July 5, 2013  Image Processing and Quality Control

Basic processing in ASL, Michael Chappell
Existing packages, Michael Chappell
Data preparation for group comparison – part I of presentation, Juan Antonio Hernandez
Data preparation for group comparison – part II of presentation, Juan Antonio Hernandez
Quality Control and Artefacts, Francesca Benedetta Pizzini

July 6, 2013  Clinical Significance

Introduction to neurodegeneration, Giovanni Frisoni
Neurodegeneration and metabolism, Giovanni Frisoni
Clinical MRI and ASL patterns in AD, Beatriz Gomez-Anson
Clinical MRI and ASL patterns in other dementias, Beatriz Gomez-Anson




Below you can see the  first three places of the best ASL images with the highest resolution:



Scientific Report on COST Action BM1103 Workshop “Arterial Spin Labelling in Dementia”

Here you find the scientific report of the first workshop on “Arterial Spin Labelling in Dementia”, which took place in Amsterdam on October 5th 2012. The results of previous work and plans for future work of the three workgroups are presented.

Scientific report COST-action BM1103 AID WorkshopI


03.03.2012: A paper from Matthias Guenther and Xavier Golay concerning the ASL Network has been published:

Arterial spin labelling: final steps to make it a clinical reality.


The ASL Network is partly funded by a European COST Action. For more information please click on the link below:

European COST Action