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Abstract #2581

Accelerated Visualization of Individual Intracranial Arteries with Reduced Number of Control Acquisitions in Super-selective Arterial Spin Labeling

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

1Clinic for Radiology and Neuroradiology, University Hospital Schleswig-Holstein, Kiel, Germany, 2Philips GmbH Innovative Technologies, Research Laboratories, Hamburg, Germany

In this study, different approaches for obtaining selective Arterial Spin Labeling (ASL) angiograms are presented. Conventionally, the label image of each artery has to be matched with a separate control image. In this study, the number of control acquisitions is reduced, thus, making it possible to reduce acquisition times considerably. In one approach, a shared control condition is used for three selectively labeled arteries to obtain the final images (“cycled super-selective ASL”). This means that only one control image is used for subsequent data processing with three images of different arteries. In the second approach, no control image is required at all and the angiography information can be obtained from the label images only (“self-control ASL”). Image quality appeared similar in all approaches. Compared to super-selective ASL, image acquisition times are reduced in the presented approaches.

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