Human-sized magnetic particle imaging for brain applications.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 31028253.
- Also identified by DOI 10.1038/s41467-019-09704-x and PMC identifier 6486595.
- Licence recorded as CC BY.
- The licence permits redistribution, so the abstract is shown in full and the full text is available from the publisher.
Abstract
Determining the brain perfusion is an important task for diagnosis of vascular diseases such as occlusions and intracerebral haemorrhage. Even after successful diagnosis, there is a high risk of restenosis or rebleeding such that patients need intense attention in the days after treatment. Within this work, we present a diagnostic tomographic imager that allows access to brain perfusion quantitatively in short intervals. The device is based on the magnetic particle imaging technology and is designed for human scale. It is highly sensitive and allows the detection of an iron concentration of 263 pmol<sub>Fe</sub> ml<sup>-1</sup>, which is one of the lowest iron concentrations imaged by MPI so far. The imager is self-shielded and can be used in unshielded environments such as intensive care units. In combination with the low technical requirements this opens up a variety of medical applications and would allow monitoring of stroke on intensive care units.
Medical subject headings
- Contrast Media
- Dextrans
- Magnetics
- Magnetite Nanoparticles
- Neuroimaging
- Tomography