Abstract #4575

Diffusion Weighted Imaging using a Prostate Nonlinear Gradient Coil

Nahla M H Elsaid¹, Terence Nixon¹, Andrew Dewdney², Andrea De Simone³, Ates Fettahoglu¹, and Gigi Galiana^1,4

¹Radiology and Biomedical Imaging, Yale University, New Haven, CT, United States, ²Magnetic Resonance, Siemens Healthcare GmbH, Erlangen, Germany, ³Università Cattolica del Sacro Cuore, Rome, Italy, ⁴Biomedical Engineering, Yale University, New Haven, CT, United States

Synopsis

Keywords: Gradients, ProstateThis work presents the early performance characteristics of an inside-out prostate nonlinear gradient (NLG). Diffusion-weighted imaging (DWI) could detect prostate cancers non-invasively. However, it requires high b-values, which in turn require a gradient pulse with a long duration, increasing the echo time. A longer echo time means a lower SNR and lower contribution from short T2 components. NLG coil circumvents this issue by having a gradient with a high amplitude within a limited field of view, which applies to prostate imaging.

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