What is ASL?
Arterial Spin Labeling (ASL) is a relatively new MRI perfusion modality that changes the magnetization of blood water protons to use them as an endogenous tracer. ASL is a completely non-invasive imaging modality, meaning that it requires neither ionizing radiation nor the administration of an exogenous contrast agent. Non- invasiveness has several advantages for clinical research: it is possible to repeat the CBF measurement as frequently as desired and the measurement can be applied in vulnerable populations such as patients with renal failure or children .
Exemplary ExploreASL results
From these results with 10 heterogeneous test datasets, it seems that we have fixed the reproducibility between Matlab versions, and Unix-type OS/machine differences are small. However, still Windows vs Unix-system differences remain, which could be due to JavaVM architecture differences. We could test this by running these tests but disabling the JavaVM.