Abstract #2811

Reduction of power deposition using VERSE RF pulses to decrease acquisition time in pulsed ASL sequence at high field.

Sagar Buch¹, Omer Oran¹, Ravi S Menon^1,2, and Hacene Serrai¹

¹Centre for Functional and Metabolic Mapping, Univ. of Western Ontario, london, ON, Canada, ²Medical Biophysics, Univ. of Western Ontario, london, ON, Canada

The use of Arterial spin labelling at high field, allow for a gain in sensitivity in brain perfusion images. However, this necessitates an increase in acquisition time due to SAR limits. To address this problem, the conventional selective RF pulses used for saturation of the blood in the PICORE Q2TIPS tagging technique of the Pulsed ASL sequence were replaced by their corresponding VERSE RF pulses, to achieve the same task with less power. As a result, perfusion images were obtained in a shorter acquisition time allowing for an increase of both the number of acquisitions and SNR.

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.