Joshua de Bever1,2, Henrik Odéen 1,2, and Dennis L. Parker1,2
1Department of Radiology, University of Utah, Salt Lake City, UT, United States, 2Utah Center for Advanced Imaging Research, Salt Lake City, UT, United States
Using focused ultrasound and MR acoustic radiation force
imaging (MR-ARFI), the mechanical properties of tissues can be
interrogated. Changes to tissue
properties, for instance before and after a MR guided focused ultrasound
thermal therapy, could help evaluate treatment success. This abstract presents
a novel method for measuring acoustic radiation force simultaneously with
proton resonance shift thermometry. This would enhance the safety of MR-ARFI, and
provide additional temperature information that may indicate when, and at what
temperature, a tissue property change occurred. Temporal resolution was
enhanced by a factor of 5 by employing a temporally constrained reconstruction
algorithm.
