Catherine J Moran1, Bragi Sveinsson1,2, Brady Quist2, Marcus T Alley1, Bruce Daniel1, and Brian A Hargreaves1
1Radiology, Stanford University, Stanford, CA, United States, 2Electrical Engineering, Stanford University, Stanford, CA, United States
The double echo steady state (DESS) acquisition has the potential to provide high-resolution and distortion-free T2 and diffusion-weighted images in the breast. Initial investigations of DESS in the breast have been limited by the presence of ghosting artifacts. Respiratory-induced B0 variation is one source of these artifacts. A method utilizing an in-vivo time-varying off-resonance estimate along with an image entropy metric to assess the level of artifact is described and investigated for correction of ghosting due to respiration-induced B0 variation in DESS in the breast.
