Abstract #2914

Practical Non-Selective Refocusing Pulses for 7T MRI

Marcin Jankiewicz^1,2, Jay Moore^1,3, Adam Anderson^1,4, John Gore^1,4

¹Institute of Imaging Science, Vanderbilt University, Nashville, TN, United States; ²Radiology & Radiological Sciences, Vanderbilt University, Nashville, TN, United States; ³Physics & Astronomy, Vanderbilt University, United States; ⁴Biomedical Engineering, Vanderbilt University

We evaluate a sample of short, low-SAR, non-selective refocusing pulses using a 3D SE-EPI sequence at 7 T. With only a two-fold increase in SAR relative to a block pulse, several refocusing options were found to increase signal in low B₁⁺ regions by a factor of 2.