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Abstract #1494

Ingredients for balanced SSFP Microimaging

Sebastien Bär1, Thomas Oerther2, Angelina Müller3, Matthias Weigel4, Matthias Wapler 3, and Jochen Leupold1

1Dept. of Radiology, Medical Physics, University Medical Center Freiburg, Freiburg, Germany, 2Bruker Biospin GmbH, Ettlingen, Germany, 3Department of Microsystems Engineering IMTEK, University of Freiburg, Freiburg, Germany, 4Clinics of Radiology and Nuclear Medicine, Radiological Physics, University Hospital Basel, Basel, Switzerland

In this work, balanced SSFP microimaging was succesfully performed in 3D (voxel size 40μm x 40μm x 94μm) and 2D (in-plane resolution 16μm x 16μm) on a 7T small animal system and a small-bore 7T spectrometer with maximally used gradient amplitude of 1.03 T/m. Key for optimzed image quality was the choice of susceptibility matched phantom materials and the proper choice of bSSFP flip angle under consideration of diffusion attenuation due to imaging gradients.

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