Abstract #4569
Dual-vendor comparison of arterial spin labeling with same labeling and readout modules
Henri JMM Mutsaerts 1 , Matthias JP van Osch 2 , Fernando O Zelaya 3 , Mikjel J Skurdal 4 , Wibeke Nordhy 5 , Yi Wang 6 , Oliver Geier 5 , Aart J Nederveen 1 , Atle Bjrnerud 5 , Danny JJ Wang 6 , and Inge R Groote 5
1
Academic Medical Center, Amsterdam,
Netherlands,
2
Leiden
University Medical Center, Leiden, Netherlands,
3
Kings
College London, London, United Kingdom,
4
Akershus
University Hospital, Oslo, Norway,
5
Oslo
University Hospital, Oslo, Norway,
6
UCLA,
Los Angeles, California, United States
The three major MRI vendors have chosen different
implementations of ASL, hampering the validity of
cross-vendor comparisons and multi-site studies. The
current study compares 3T pseudo-continuous ASL (pCASL)
CBF-measurements acquired at two major vendors MRI
systems: Philips and Siemens. For this study, pCASL
sequences were created with near complete similarity
between the two vendor systems. These data indicate that
if an identical sequence is used, cross-vendor CBF
differences are small. Currently, we are including a
third major vendor (GE) in the comparison. Data from the
three-vendor comparison will be available by January
2014.
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