Abstract #0780

Asymmetric GOIA pulses for highly selective B1 and T1 independent outer volume suppression

Chathura Kumaragamage¹, Peter B Brown¹, Scott McIntyre¹, Terence W Nixon¹, Henk M De Feyter¹, and Robin A de Graaf¹

¹Department of Radiology and Biomedical Imaging, Magnetic Resonance Research Center, Yale University, New Haven, CT, United States

An asymmetric GOIA pulse was developed (Tp = 6.66 ms, BW = 20 kHz) by combining two adiabatic half passage pulses (hyperbolic secant and hyperbolic tangent GOIA modulations). The pulse achieves an asymmetrical excitation/inversion profile, thus was used in a multi-pulse OVS sequence to achieve an efficient, highly-selective, B₁ and T₁-independent signal suppression with a transition width of only 1.7% of the bandwidth.

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.