Browsing by Author "Varma, Gopal"
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Magnetization Transfer From Inhomogeneously Broadened Lines: A Potential Marker for Myelin
Varma, Gopal; Duhamel, Guillaume; de Bazelaire, Cedric; Alsop, David (Wiley, 2015-02)Purpose To characterize a new approach to magnetization transfer (MT) imaging with improved specificity for myelinated tissues relative to conventional MT. Methods Magnetization transfer preparation sequences were ... -
Selective spectroscopic imaging of hyperpolarized pyruvate and its metabolites using a single-echo variable phase advance method in balanced SSFP
Varma, Gopal; Wang, Xiaoen; Vinogradov, Elena; Bhatt, Rupal S.; Sukhatme, Vikas P.; Seth, Pankaj; Lenkinski, Robert E.; Alsop, David; Grant, Aaron K. (Wiley, 2015-10-28)Purpose—In balanced steady state free precession (bSSFP), the signal intensity has a wellknown dependence on the off-resonance frequency, or, equivalently, the phase advance between successive radiofrequency (RF) pulses. ...