Meeting Banner
Abstract #1660

Optimizing Accuracy and Precision of Micro-coil Localization in Active MR Tracking under low SNR conditions

Barret Daniels 1 , Ronald Pratt 2 , Randy Giaquinto 1,2 , and Charles Dumoulin 1,2

1 Biomedical Engineering, Univsersity of Cincinnati, Cincinnati, Ohio, United States, 2 Imaging Research Center, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States

MR active tracking suffers from less efficient signal detection, poorer accuracy, and a complicated phase sensitivity profile when MR signals detected by the tracking coil arise only from regions outside of the coil. Hadamard Multiplexing and Phase Field Dithering have been proposed to improve tracking accuracy in these low SNR conditions. We developed a strategy to further increase MR tracking accuracy in these conditions by improving upon the conventional max pixel approach to MR tracking peak detection in the power spectrum. Furthermore, we quantified the combined benefit in accuracy and precision of all three methods through electromagnetic simulation and experimentation.

This abstract and the presentation materials are available to members only; a login is required.

Join Here