Meeting Banner
Abstract #2640

GPU-Enabled Individualized Acceleration Apportionment for SENSE and CAIPIRINHA

Eric A. Borisch1, Paul T. Weavers1, Stephen J. Riederer1

1Mayo Clinic, Rochester, MN, United States

Improving the performance of 2D-accelerated 3D acquisitions by determining an individualized acceleration selection, (<I>RY, RZ</I>) for SENSE or (<I>RY, RZ,Delta</I>) for CAIPIRINHA, for each patient/coil combination is an area of active research. Determining what is the optimal choice of accelerations is a compute- and time-intensive step. To enable a clinical practice-compatible (fast) process, we have implemented a GPU-based optimization routine, enabling a wide range of potential acceleration choices to be examined in under 10 seconds. The process of converting these calculations to a GPU as well as observed performance improvements are discussed.

Keywords

acceleration accelerations achieved acquisition algebra aliased aliasing apparent application appropriate arranged byproduct bytes calculating calculation calculations calves choose clear cluster coil combination combinations complex complexity computation computational compute computers computing configuration configurations considered consistently construction contemporary correlation cost count counts creation datasets defined derived describe described describing desirable diagonal directly dozens element eliminating enable enabled equation evaluated evaluation even exam expected fewer final floating future gains generally good graphics hardware hundreds implementation improvement increasing indeed independently individualized initial initially input integrating intra inversion involved issues item kernel kernels knowledge known larger maps matrices matrix mayo memory migration much must noise operates operations optimization optimize original output overall pair penalty performance potential practical previously priori processor processors product quality radiology receiver reduced required resolution scaled scaling search searching selection sense sensitivity separable side slow source space spatial static stored successfully target task thousands timings transferred transmitter tuning unit utilizing volume weavers whose