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Abstract #5041

Omitting the control condition using self-control super-selective Arterial Spin Labeling to reduce total scan time for flow territory mapping

Thomas Lindner1, Naomi Larsen1, Olav Jansen1, and Michael Helle2

1Clinic for Radiology and Neuroradiology, University Hospital Schleswig-Holstein, Kiel, Germany, 2Tomographic Imaging Department, Philips Research, Hamburg, Germany

Selective Arterial Spin Labeling (ASL) is established to perform non-contrast enhanced flow territory mapping. In super-selective pCASL only one artery of interest is labeled while the efficiency in contralateral arteries is near zero. To obtain a holistic picture of all brain perfusion territories, the label and control experiments have to be repeated for each artery, prolonging scan time. In this study, it is hypothesized that due to the (almost) negligible signal contribution of non-tagged arteries, selective perfusion images can be calculated from a single scan that is performed without the acquisition of control images.

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