Multi-site Scanner Characterisation for Global Ultra-low Field MR Imaging
Motivation: Combining data from multiple sites is necessary in order to reach large sample sizes. This can be challenging, especially with portable ultra-low field (ULF) systems where conditions can vary. Goal(s): To characterise image quality across multiple sites using ULF-MRI for future data harmonization. Approach: Acquisition of QA scans across sites with centralised analysis for cross-sectional and longitudinal assessment. SNR and T2w contrast were calculatedResults: SNR was consistent within site, but some variation between sites. Image contrast was consistent, but extra care should be taken with software updates. Impact: Quality assurance is essential for portable ultra-low field MRI. Our results demonstrate that SNR and contrast are useful metrics for image quality characterisation. This paves the way for harmonization of in vivo data in global studies using ultra-low field MRI.
Authors
- Jeanne Van Rensburg
- Talat Shama (ORCID: https://orcid.org/0000-0002-0761-9960)
- John R. Evans (ORCID: https://orcid.org/0000-0003-1566-4507)
- Todor Karaulanov (ORCID: https://orcid.org/0000-0001-9833-9915)
- Shannon Kolind (ORCID: https://orcid.org/0000-0003-1362-1968)
- Maclean Vokhiwa (ORCID: https://orcid.org/0000-0002-8706-6031)
- Carly Bennallick
- Samson Lecurieux Lafayette
- Steven Williams (ORCID: https://orcid.org/0000-0003-4299-1941)
- A. H. Khosa
- Francesco Padormo (ORCID: https://orcid.org/0000-0001-5699-2692)
- Emil Ljungberg (ORCID: https://orcid.org/0000-0003-1456-7967)
- Kirsten A. Donald (ORCID: https://orcid.org/0000-0002-0276-9660)
- Sean Deoni (ORCID: https://orcid.org/0000-0002-0633-6328)
- Alexica De Canha
- Lydia Sekoli
- M. Pepper (ORCID: https://orcid.org/0000-0003-3052-5425)
- Layla Bradford
- W. den Hollander
- Petter Clemensson (ORCID: https://orcid.org/0000-0002-5238-9084)
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/10.58530/2024/3006
- Primary Topic
- Atomic and Subatomic Physics Research
- Type
- article
- Field-Weighted Citation Impact
- 0.00