ZOOM and enhance: ZOnally magnified Oblique Multi-slice for cardiac DTI with ultra-strong gradients
Motivation: Cardiac diffusion tensor imaging (cDTI) with echo-planar imaging (EPI) requires long readouts to avoid aliasing artefacts if 2D-selective rf-pulses are not available. These prolong the echo time (TE) and increasing sensitivity to off-resonance artefacts. Goal(s): The reduction of the excited and refocused field of view in the phase direction to reduce TE and sensitivity to image artefacts in cDTI. Approach: We combine ZOnally-magnified Oblique Multi-slice (ZOOM) EPI (i.e. tilting the slice orientation of the refocussing rf-pulse) with ultra-strong gradients. Results: We were able to reduce TE (from ~70 ms to 59 ms) in cDTI considerably by reducing the FoV and using strong gradients. Impact: We reduced the echo time in cDTI with ultra-strong gradients which will allow us to use more advanced diffusion acquisitions (higher b-values and/or different gradient waveforms) in the heart in vivo.
Authors
- Jürgen E. Schneider (ORCID: https://orcid.org/0000-0003-0999-5684)
- Derek Kenton Jones (ORCID: https://orcid.org/0000-0003-4409-8049)
- Maryam Afzali (ORCID: https://orcid.org/0000-0003-3378-0878)
- John R. Evans (ORCID: https://orcid.org/0000-0003-1379-3532)
- Sam Coveney (ORCID: https://orcid.org/0000-0002-7134-3196)
- Erica Dall’Armellina (ORCID: https://orcid.org/0000-0002-2165-7154)
- Filip Szczepankiewicz (ORCID: https://orcid.org/0000-0002-5251-587X)
- Irvin Teh (ORCID: https://orcid.org/0000-0002-6705-3129)
- André Döring (ORCID: https://orcid.org/0000-0002-2096-5374)
- Fabrizio Fasano (ORCID: https://orcid.org/0000-0001-8396-4697)
- Lars Mueller (ORCID: https://orcid.org/0000-0002-9605-9183)
Publication Details
- Journal
- Proceedings on CD-ROM - International Society for Magnetic Resonance in Medicine. Scientific Meeting and Exhibition/Proceedings of the International Society for Magnetic Resonance in Medicine, Scientific Meeting and Exhibition
- Published
- 2024-11-26
- DOI
- https://doi.org/10.58530/2024/1269
- Citations
- 4
- Primary Topic
- Advancements in Photolithography Techniques
- Type
- article
- Field-Weighted Citation Impact
- 0.83