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Abstract #3042

Full Brain and Territorial Arterial Spin Labeling with External RF Shimmed Labeling Coil at 7 Tesla

Wouter Koning1, Esben Thade Petersen1, Jaco J.M. Zwanenburg1, Peter R. Luijten1, Dennis W.J. Klomp1

1University Medical Center, Utrecht, Netherlands

Arterial spin labeling (ASL) at ultra high field can theoretically offer a high signal to noise ratio (SNR) of the perfusion signal due to higher intrinsic SNR and the longer T1 relaxation times. A major challenge at 7T MRI is the absence of a body coil. Due to the limited range the head coils used at the 7 Tesla scanners, it is difficult to label the lower regions of the brain. In this research, a simple U-Tube transmitter is used as an external labelling coil, in combination with the standard head coil. With this setup, full brain and territorial ASL maps could be acquired.