Trajectory analysis for magnetic particle imaging
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Trajectory analysis for magnetic particle imaging. / Knopp, T; Biederer, S; Sattel, T; Weizenecker, J; Gleich, B; Borgert, J; Buzug, T M.
in: PHYS MED BIOL, Jahrgang 54, Nr. 2, 21.01.2009, S. 385-97.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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TY - JOUR
T1 - Trajectory analysis for magnetic particle imaging
AU - Knopp, T
AU - Biederer, S
AU - Sattel, T
AU - Weizenecker, J
AU - Gleich, B
AU - Borgert, J
AU - Buzug, T M
PY - 2009/1/21
Y1 - 2009/1/21
N2 - Recently a new imaging technique called magnetic particle imaging was proposed. The method uses the nonlinear response of magnetic nanoparticles when a time varying magnetic field is applied. Spatial encoding is achieved by moving a field-free point through an object of interest while the field strength in the vicinity of the point is high. A resolution in the submillimeter range is provided even for fast data acquisition sequences. In this paper, a simulation study is performed on different trajectories moving the field-free point through the field of view. The purpose is to provide mandatory information for the design of a magnetic particle imaging scanner. Trajectories are compared with respect to density, speed and image quality when applied in data acquisition. Since simulation of the involved physics is a time demanding task, moreover, an efficient implementation is presented utilizing caching techniques.
AB - Recently a new imaging technique called magnetic particle imaging was proposed. The method uses the nonlinear response of magnetic nanoparticles when a time varying magnetic field is applied. Spatial encoding is achieved by moving a field-free point through an object of interest while the field strength in the vicinity of the point is high. A resolution in the submillimeter range is provided even for fast data acquisition sequences. In this paper, a simulation study is performed on different trajectories moving the field-free point through the field of view. The purpose is to provide mandatory information for the design of a magnetic particle imaging scanner. Trajectories are compared with respect to density, speed and image quality when applied in data acquisition. Since simulation of the involved physics is a time demanding task, moreover, an efficient implementation is presented utilizing caching techniques.
KW - Algorithms
KW - Biomedical Engineering
KW - Biophysical Phenomena
KW - Humans
KW - Image Processing, Computer-Assisted
KW - Magnetics
KW - Metal Nanoparticles
KW - Models, Theoretical
KW - Nanotechnology
KW - Nonlinear Dynamics
KW - Phantoms, Imaging
KW - Tomography
KW - Journal Article
U2 - 10.1088/0031-9155/54/2/014
DO - 10.1088/0031-9155/54/2/014
M3 - SCORING: Journal article
C2 - 19098358
VL - 54
SP - 385
EP - 397
JO - PHYS MED BIOL
JF - PHYS MED BIOL
SN - 0031-9155
IS - 2
ER -