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Abstract #1622

Impact of slew rates on the performance of a novel high-gradient breast diffusion probe

Theresa Palm1, Jan Martin1, Bernhard Hensel2, Feng Jia3, Maxim Zaitsev3, Tristan A. Kuder4, Mark E. Ladd4, Michael Uder1, and Frederik B. Laun1

1Institute of Radiology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany, 2Center for Medical Physics and Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany, 3Department of Diagnostic Radiology, Medical Physics, University Hospital Freiburg, Freiburg, Germany, 4Medical Physics in Radiology, German Cancer Research Center, Heidelberg, Germany

Recent advances in gradient technology, in particular based on the use of local gradient coils, have increased the available gradient strength by almost an order of magnitude. In this context, the question arises what slew rates are required to translate the higher gradient amplitudes into the improved assessment of shorter diffusion times given a certain b-value. This work shows that slew rates are important in high-gradient diffusion experiments (G≥300 mT/m), in particular in low b-value applications (b≤1000 s/mm²).

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