ISSN:
1873-4766
Content:
Magnetic particle imaging (MPI) is a tomographic imaging method to determine the spatial distribution of magnetic nanoparticles (MNP) within a defined volume. To evaluate the spatio-temporal resolution of existing MPI scanners, enabling the consistent comparison of the performance of different scanner setups, we developed dynamic MPI measurement phantoms based on segmented flow. These segmented flow phantoms comprise a defined bolus of ferrofluid tracer material, which can be pumped through a tube system with defined velocities. Using a hydrophobic organic carrier oil, cylindrically shaped boluses of different diameter, length, and flow velocity can be emulated. Moving boluses were imaged by different MPI scanner types and the correlation of spatial resolution und velocity of the bolus was investigated. For all bolus dimension and flow velocity combinations investigated, we observed a decreasing spatial resolution and increasing blurring for increasing bolus velocity and decreasing bolus volume.
In:
Journal of magnetism and magnetic materials, Amsterdam : North-Holland Publ. Co., 1975, 519(2021) vom: 1. Feb., Artikel-ID 167446, 1873-4766
In:
volume:519
In:
year:2021
In:
day:1
In:
month:02
In:
elocationid:167446
Language:
English
DOI:
10.1016/j.jmmm.2020.167446
URL:
Volltext
(lizenzpflichtig)
Author information:
Kosch, Olaf 1966-
Author information:
Dutz, Silvio 1972-
Author information:
Behr, Volker Christian 1975-
Author information:
Vogel, Patrick
