Abstract #3536

Feasibility of High Spatial and Temporal Resolution Breast DCE-MRI using Radial Acquisition with Data-Driven Model Consistency Condition Reconstruction

Pingni Wang¹, Roberta M Strigel^1,2,3, Julia V Velikina¹, Alexey A Samsonov², Leah C Henze Bancroft², Kang Wang⁴, Ty A Cashen⁴, Kevin M Johnson¹, and James H Holmes²

¹Department of Medical Physics, University of Wisconsin-Madison, Madison, WI, United States, ²Department of Radiology, University of Wisconsin-Madison, Madison, WI, United States, ³Carbone Cancer Center, University of Wisconsin-Madison, Madison, WI, United States, ⁴Global MR Applications & Workflow, GE Healthcare, Madison, WI, United States

Dynamic contrast-enhanced (DCE) MRI using conventional Cartesian sampling is used in routine clinical practice due to its high sensitivity for breast cancer. However, ghosting artifacts caused by cardiac motion can obscure the axilla, making interpretation of this area more difficult and potentially obscuring findings. Radial acquisitions are less motion sensitive due to more frequent sampling of the center of k-space and prior work has suggested these methods for breast MRI. In this study, we report results from a reader study to assess image quality of a 3D stack-of-stars radial acquisition compared with Cartesian imaging for breast MRI.

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