Voxel-size dependent quantitative susceptibility mapping of blood vessel networks: A simulation study.

Autor: Buschle LR; German Cancer Research Center (DKFZ), Department of Radiology (E010), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany; Heidelberg University Hospital, Department of Neuroradiology, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany; Heidelberg University, Faculty of Physics and Astronomy, Im Neuenheimer Feld 227, 69120 Heidelberg, Germany., Kampf T; University of Würzburg, Department of Experimental Physics 5, Am Hubland, 97074 Würzburg, Germany; Würzburg University Hospital, Department of Diagnostic and Interventional Neuroradiology, Josef-Schneider-Straße 11, 97080 Würzburg, Germany., Kurz FT; German Cancer Research Center (DKFZ), Department of Radiology (E010), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany; Heidelberg University Hospital, Department of Neuroradiology, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany., Sturm VJF; German Cancer Research Center (DKFZ), Department of Radiology (E010), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany; Heidelberg University Hospital, Department of Neuroradiology, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany., Pham M; Würzburg University Hospital, Department of Diagnostic and Interventional Neuroradiology, Josef-Schneider-Straße 11, 97080 Würzburg, Germany., Schlemmer HP; German Cancer Research Center (DKFZ), Department of Radiology (E010), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany., Ziener CH; German Cancer Research Center (DKFZ), Department of Radiology (E010), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany; Heidelberg University Hospital, Department of Neuroradiology, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany.
Jazyk: angličtina
Zdroj: Zeitschrift fur medizinische Physik [Z Med Phys] 2019 Aug; Vol. 29 (3), pp. 282-291. Date of Electronic Publication: 2018 Oct 11.
DOI: 10.1016/j.zemedi.2018.09.002
Abstrakt: Quantitative susceptibility mapping provides a measure for the local susceptibility within a voxel in magnetic resonance imaging (MRI). So far, theoretical and numerical studies focus on the assumption of a constant susceptibility inside each MR voxel. For blood vessel networks, however, susceptibility differences between blood and surrounding tissue occur on a much smaller length scale than the typical voxel size in routine MRI. In this work, the dependency of the quantitative susceptibility value on vessel size and voxel size is analyzed.
(Copyright © 2018. Published by Elsevier GmbH.)
Databáze: MEDLINE
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