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Abstract #4446

Singleshot Measurements of T1 and Field Variation Using 2D Simultaneous Singleshot Spin-, Gradient-, and Stimulated-EPI (2D Ss-SGSTEPI)

Xianfeng Shi1, Xin Liu1, EunKee Jeong2

1Department of Physics, University of Utah, Salt Lake City, UT, USA; 2Department of Radiology, University of Utah, Salt Lake City, UT, USA


A stimulated echo is formed after three 90o RF pulses. Magnetization-preparation is accomplished immediately after the first RF pulse and the second RF pulse restores a half of prepared magnetization into the longitudinal space. Other half is remained on the transverse plane. In the conventional stimulated-echo pulse sequence, a half of the prepared magnetization is discarded. A novel imaging technique has been developed to utilize other half of the prepared magnetization at the spin-echo position and simultaneously acquire spin-, gradient-, and stimulated-EPI in a singleshot using 2D singleshot spin-/stimulated-EPI (2D ss-SGSTEPI).