Iterative Minimization Procedure with Uncompressed Local SAR Estimate (IMPULSE): A Generalized and Scalable Framework for Joint Design of pTx RF Pulses

Stanford researchers have developed an algorithm to achieve uniform excitation and image uniformity in the presence of a non-uniform transmit field while limiting local power deposition or "hot spots" using multiple transmit channels and the methid of "parallel transmit" or pTx. . This algorithm solves the long-standing technical challenge that has limited clinical application of ultra-high-field MRI.