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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