Microwave seminar | 22 November 2021

Low field MRI has gained renewed interest in recent years as a means of expanding the role of MR in the healthcare system. While the image quality that can be attained with Low field MRI systems (<0.1 Tesla) is significantly lower than their high field counterparts they are much smaller, more light weight and cheaper than their high field counter parts and due to not needing extensive cooling systems they are much simpler to construct yourself. In this presentation I'll talk about the design and construction of a 50 milliTesla head only system and highlight some of the challenges that we faced during the process and hopefully by the end you will be able to build your own!

Main paper/arXiv, related to the seminar, and other references

O'Reilly et al. In vivo 3D brain and extremity MRI at 50 mT using a permanent magnet Halbach array. Magnetic Resonance in Medicine. 2020; 85;495-505, DOI:10.1002/mrm.28396
O'Reilly et al. Three-dimensional MRI in a homogenous 27 cm diameter bore Halbach array magnet. Journal of Magnetic resonance; 2019; 307, DOI:10.1016/j.jmr.2019.106578
de Vos et al. Design, Characterisation and Performance of an Improved Portable and Sustainable Low-Field MRI System. Frontiers in Physics, 2021, DOI:10.3389/fphy.2021.701157
Moritz et al. On the Economic Value of Open Source Hardware – Case Study of an Open Source Magnetic Resonance Imaging Scanner. Journal of Open Hardware, 2019;3;DOI:10.5334/joh.14