Leland Stanford Junior University

University of California

Albert P Chen

John Mark Pauly

Daniel Blackburn Vigneron

Adam Bruce Kerr

Michael Lustig

Charles H Cunningham

Peder E Larson

A computer implemented method for designing a spectral-spatial pulse for exciting at least one passband and minimally exciting at least one stopband is provided. A uniform shaped spectral envelope is generated. For a plurality of k&#x2260;0, kdependent weights for a spectral envelope that approximate a k=0 envelope and provides the at least one passband and the at least one stopband for each of the plurality of k&#x2260;0 is generated.

Optimized spectral-spatial pulse

A method for performing magnetic resonance spectroscopy is described. The method generally includes applying a tailored multiband spectral-spatial radio frequency excitation pulse to a sample including a first species and at least a second species having a different resonant frequency than the first species. The multiband excitation pulse excites the first species according to a first amplitude and excites the second species according to a second amplitude that is substantially greater than the first amplitude. Data is acquired from the sample. The acquired data is then utilized to generate a spectroscopic output. By way of example, the spectroscopic output is a spectroscopic image. In particular embodiments, the data for the first and second species is acquired dynamically over an observation window of time.

Hyperpolarized dynamic chemical shift imaging with tailored multiband excitation pulses

Growing community of inventors

San Francisco, CA, United States of America

Albert P Chen