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Abstract #0965

Diffusion Imaging with Very High Resolution and Very Short Echo Time

Bertram Jakob Wilm1, Manuela Roesler1, Franciszek Hennel1, Markus Weiger1, and Klaas Paul Pruessmann1
1ETH and University of Zürich, Zürich, Switzerland

To achieve high-resolution diffusion imaging with short echo times, single-shot spiral DWI using a recently developed gradient insert (strength=200 mT/m, slew=600 T/m/s) was implemented. The high gradient strength in combination with the spiral readout allowed for an echo time as short as 19 ms at a b-factor of 1000 s/mm2. The high slew rate enabled shortening of the spiral readout duration which reduces sensitivity against static off-resonance and T2* blurring artifacts, and allowed imaging with an in-plane image resolution of only 0.69 mm. First in-vivo results are presented.

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