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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