This zenodo repository hosts the data from accelerated diffusion weighted magnetic resonance imaging (DW-MRI) at 7T, highlighting our joint reconstruction technique for shift-encoded navigator-based interleaved echo planar imaging (JETS-NAViEPI), where iEPI meets rsEPI. NAViEPI enforces consistent effective echo spacing between imaging and navigator echoes, enabling (1) minimal distortion mismatch between these imaging and navigator echoes, (2) reliable shot-to-shot phase variation estimation from navigator echoes, (3) flexible number of shots (conventional iEPI is limited to 3 or 4 shots). JETS-NAViEPI achieves sub-millimeter mesoscale resolution DW-MRI at ultra short scan time and ultra-high field (7T). Data provided in this repository consists of: Spatial Resolution (mm3) Diffusion mode Acceleration (in-plane x slice) Shots Navigator Note 0.5 x 0.5 x 2.0 3-scan trace 3 x 2 5 Yes patient (pat) volunteer 1.0 3-shell 126 directions with b-value up to 3000 s/mm2 3 x 3 2 No 1.0 MDDW 20 directions with b-value of 1000 s/mm2 1 x 3 4 No 1.7 x 1.7 x 4.0 MDDW 12 directions with b-value of 1000 s/mm2 2 x 3 1 No

Funding by the German Research Foundation (DFG) is gratefully acknowledged (projects 513220538, 512819079; and project 500888779 of the RU5534 MR biosignatures at UHF). In addition, funding by the National Institutes of Health (NIH), R01 EB024532 and P41 EB017183, is gratefully acknowledged. In addition, we gratefully acknowledge the scientific support and HPC resources provided by the Erlangen National High Performance Computing Center (NHR@FAU) of Friedrich-Alexander-University Erlangen-Nuremberg (FAU) under the NHR project b143dc. NHR funding is provided by federal and Bavarian state authorities. NHR@FAU hardware is partially funded by the German Research Foundation (DFG) - 440719683.