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Abstract #1441

A Robust and Low-Power Adiabatic T 2 Preparation for Cardiovascular Imaging at High Magnetic Field

Ruud B van Heeswijk 1,2 , Kieran R O'Brien 2,3 , Jean Delacoste 1,2 , and Matthias Stuber 1,2

1 Radiology, University Hospital (CHUV) and University of Lausanne (UNIL), Lausanne, Switzerland, 2 Center for Biomedical Imaging (CIBM), Lausanne, Switzerland, 3 Radiology, University of Geneva, Geneva, Switzerland

An adiabatic T 2 Preparation module (T 2 Prep) at high magnetic field normally requires too much energy to allow it to be combined with bSSFP imaging. Numerically optimized adiabatic pulses were therefore used to design a T 2 Prep for cardiovascular imaging at high magnetic field. The energy efficiency of this optimized T 2 Prep was established at 3T and compared to standard adiabatic T 2 Prep. Finally, T 2 -prepared bSSFP cardiovascular imaging and coronary MRA were demonstrated in healthy volunteers.

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