Abstract #2088

Multi-Vessel Labeling Approach for Perfusion Territory Imaging in Pseudo-Continuous Arterial Spin Labeling

Michael Helle¹, Susanne Rfer¹, Matthias van Osch², Olav Jansen¹, David Gordon Norris^3,4

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.