Results 11 to 20 of about 4,024,090 (252)

Model-based voltage predictions for arbitrary waveform excitation in Magnetic Particle Imaging

, 2023
In recent works, arbitrary waveform or pulsed excitation in Magnetic Particle Imaging (MPI) was proposed to offer better resolution and sensitivity. Generating these excitation fields poses a new challenge in MPI hardware design.
Hackelberg, Niklas, Buzug, Thorsten M., Mohn, Fabian, Ackers, Justin, Knopp, Tobias, Graeser, Matthias, Buzug, Thorsten   +6 more
core   +1 more source

Sensitivity analysis of nondestructive magnetic techniques for the restoration of stamped marks on low carbon steel

Journal of Materials Research and Technology, 2020
Restoration of obliterated stamped marks is a common investigative technique used in criminal investigation. Considering the evolution of the obliteration techniques used by criminals, a study of the feasibility of sensitive, effective, and ...
Mariana G.B. Lima, Clara J. Pacheco, Maria C.S. Nóbrega, Gabriela R. Pereira   +3 more
doaj   +1 more source

Algorithmic Channel Decoupling for Misaligned Receive Coils in Magnetic Particle Imaging

, 2022
Magnetic particle imaging (MPI) uses orthogonal receive coils aligned with the drive-field coil directions for signal detection. In case of misaligned receive coils, the particle magnetization couples differently into the receive coils such that a re ...
Liebing , Tom, Möddel, Martin, Graeser, Matthias, Knopp, Tobias, Foerger, Fynn, Gräser, Matthias, Liebing, Tom, Boberg , Marija, Foerger, Fynn, Thieben, Florian, Boberg, Marija, Knopp, Tobias, Möddel, Martin   +12 more
core   +1 more source

Theory, simulation and experimental results of the acoustic detection of magnetization changes in superparamagnetic iron oxide

BMC Medical Imaging, 2011
Background Magnetic Particle Imaging is a novel method for medical imaging. It can be used to measure the local concentration of a tracer material based on iron oxide nanoparticles.
Borgert Jörn, Weizenecker Jürgen, Gleich Bernhard   +2 more
doaj   +1 more source

Pulmonary blood volume estimation in mice by magnetic particle imaging and magnetic resonance imaging

Scientific Reports, 2021
This methodical work describes the measurement and calculation of pulmonary blood volume in mice based on two imaging techniques namely by using magnetic particle imaging (MPI) and cardiac magnetic resonance imaging (MRI). Besides its feasibility aspects
Michael Gerhard Kaul, Tobias Mummert, Matthias Graeser, Johannes Salamon, Caroline Jung, Enver Tahir, Harald Ittrich, Gerhard Adam, Kersten Peldschus   +8 more
doaj   +1 more source

Magnetic-Particle-Imaging [PDF]

, 2012
Magnetic-Particle-Imaging (MPI) ist ein neues tomographisches Verfahren fur die medizinische Diagnostik. Es wurde erstmals 2005 in der Zeitschrift Nature von B. Gleich und J. Weizenecker vorgestellt [125]. In MPI wird keine naturliche Konstante des Gewebes gemessen, sondern die ortliche Verteilung eines speziell verabreichten Tracers.
Tobias Knopp, Thorsten M. Buzug
  +4 more sources

Novel magnetic multicore nanoparticles designed for MPI and other biomedical applications: From synthesis to first in vivo studies. [PDF]

PLoS ONE, 2018
Synthesis of novel magnetic multicore particles (MCP) in the nano range, involves alkaline precipitation of iron(II) chloride in the presence of atmospheric oxygen.
Harald Kratz, Matthias Taupitz, Angela Ariza de Schellenberger, Olaf Kosch, Dietmar Eberbeck, Susanne Wagner, Lutz Trahms, Bernd Hamm, Jörg Schnorr   +8 more
doaj   +1 more source

The sensitivity of magnetic particle imaging and fluorine-19 magnetic resonance imaging for cell tracking

Scientific Reports, 2021
Magnetic particle imaging (MPI) and fluorine-19 (19F) MRI produce images which allow for quantification of labeled cells. MPI is an emerging instrument for cell tracking, which is expected to have superior sensitivity compared to 19F MRI.
Olivia C. Sehl, Paula J. Foster
doaj   +1 more source

Simulation Research on the Forward Problem of Magneto-Acoustic Concentration Tomography of Magnetic Nanoparticles With Magnetic Induction Based on the Relaxation Time of Magnetic Nanoparticles

IEEE Access, 2022
Magneto-acoustic concentration tomography of magnetic nanoparticles (MNPs) with magnetic induction (MACT-MI) is an emerging method for magnetic particle imaging based on the magneto-acoustic coupling effect. However, the limitation of this method is that
Xiaoheng Yan, Di Sun, Zhengxing Li, Weihua Chen   +3 more
doaj   +1 more source

Towards quantitative magnetic particle imaging: A comparison with magnetic particle spectroscopy

AIP Advances, 2018
Magnetic Particle Imaging (MPI) is a quantitative imaging modality with promising features for several biomedical applications. Here, we study quantitatively the raw data obtained during MPI measurements.
Hendrik Paysen, James Wells, Olaf Kosch, Uwe Steinhoff, Lutz Trahms, Tobias Schaeffter, Frank Wiekhorst   +6 more
doaj   +1 more source