Acoustic Radiation Force Imaging (ARFI) Based on Fast Spin Echo

MR guided Focused Ultrasound treats noninvasively many brain disorders. The skull bone in the brain induces significant distortions of the ultrasonic wave field. It is necessary to measure the acoustic field and correct it. This field is measured with Acoustic Radiation Force Imaging (ARFI) where the ultrasound induced tissue displacement, in conjunction with a gradient generates a phase shift which is read by EPI. In this abstract we describe a new ARFI sequence based on Fast Spin Echo. The new sequence is artifact free and is not affected by b0 field inhomogeneity. In addition the phase sensitivity is higher than EPI ARFI.

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.