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Abstract #0950

Combined T2-Prep and Outer Volume Suppression Preparation Sequence for Coronary Angiography

Jieying Luo 1 , Nii Okai Addy 1 , R. Reeve Ingle 1 , Brian A. Hargreaves 2 , Bob S. Hu 3 , Dwight G. Nishimura 1 , and Taehoon Shin 4

1 Electrical Engineering, Stanford University, Stanford, California, United States, 2 Radiology, Stanford University, Stanford, California, United States, 3 Palo Alto Medical Foundation, Palo Alto, California, United States, 4 University of Maryland, Baltimore, Maryland, United States

A magnetization preparation sequence that efficiently combines T2-Prep and outer volume suppression is designed and tested for coronary angiography. The proposed sequence is composed of a BIR-4 90 tip-down pulse, two adiabatic refocusing pulses and a 2D spiral 90 tip-up pulse. Its performance is demonstrated with numerical simulation, phantom and in vivo experiments. This sequence induces T2 weighting to improve blood-myocardium contrast while suppressing outer volume signals to facilitate scan acceleration and reduce motion artifacts.

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