This project from BioMed-Electromagnetics Group [https://people.sutd.edu.sg/~huangshaoying/] is to develop a low-cost and man-portable magnetic resonance (MR) based imager for head and extremity imaging. The development is based on permanent magnets and the magnetic field they generate. It has safe fringing field and can fit in an ambulance. The first application aimed is to expedite stroke treatment by 20-30 minutes in an ambulance for improving patients’ survival rates. With its portability and affordability, the machine also serves as practical medical imaging solution for developing countries, natural disaster rescues, and military applications. It can be further developed to assist the studies in the areas of biology, rehabitation, agriculture, etc.
You can find more details at https://www.sutd.edu.sg/Research/Research-News/2014/6/Portable-MRI