Meeting Banner
Abstract #2906

Comparison of velocity-selective-inversion arterial spin labeling schemes

Ke Zhang1, Simon M.F. Triphan1, Oliver Sedlaczek1,2, Christian Ziener2, Hans-Ulrich Kauczor1, Heinz-Peter Schlemmer2, and Felix T. Kurz2
1Department of Diagnostic and Interventional Radiology, Heidelberg University Hospital, Heidelberg, Germany, 2Department of Radiology, German Cancer Research Center, Heidelberg, Germany

Synopsis

Keywords: Pulse Sequence Design, Arterial spin labellingVelocity-selective pulses include VS saturation pulses (VSS) and VS Inversion (VSI) pulses. Previous study (1) concluded that both dual-sBIR8-VSS and sinc-VSI achieved the highest SNR efficiency among the VS labeling schemes. Overall, the dual-sBIR8-VSS pulse was the most robust against field imperfections, whereas sinc-modulated VSI pulse showed greater tSNR and was the best among the VSI methods. In this study, VSI sequence with rectangular small flip-angle RF pulses (rect-VSI), sinc-VSI with and without VS gradients during the control condition are compared. Bloch simulation and in vivo experiments for their robustness against B1, B0 variation and eddy current (EC) are investigated.

How to access this content:

For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.

After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.

After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.

Click here for more information on becoming a member.

Keywords