Michael Helle1, Susanne Rfer1, Matthias van Osch2, Olav Jansen1, David Gordon Norris3,4
1Institute for Neuroradiology, Christian-Albrechts-Universitt, UK-SH, Kiel, Germany; 2C.J. Gorter Center for High Field MRI, Department of Radiology, Leiden University Medical Center, Leiden, Netherlands; 3Donders Institute for Brain, Cognition & Behaviour, Radboud University Nijmegen, Nijmegen, Netherlands; 4Erwin L. Hahn Institute for Magnetic Resonance Imaging, Essen, Germany
Superselective pseudo-continuous arterial spin labeling has been recently introduced for perfusion territory imaging. The method offers the possibility to change the size of the labeling spot, thus to adapt to individual arteries. However, this approach requires separate measurements for individual arteries. Here, we propose a new labeling scheme for superselective ASL that utilizes an elliptical labeling spot in order to label the blood in multiple vessels simultaneously. This results in decreased scan time, less artifacts and potentially better labeling efficiency.