High resolution magnetic particle imaging with low density trajectory

H. Medimagh; T.M. Buzug; Osama A. Omer

doi:10.1109/IWMPI.2015.7106995

High resolution magnetic particle imaging with low density trajectory

H. Medimagh, T.M. Buzug, Osama A. Omer

Institute of Medical Engineering

Abstract

The spatial resolution is an important factor in MPI. The trajectory density is one of many parameters affecting the spatial resolution of MPI. To obtain a high-resolution (HR) concentration one can increase the trajectory density or increase particle diameters. However, increasing the trajectory density leads to increase of the computational complexity. Also, large particles suffer from relaxation effects. In addition, imaging with system matrix that exhibits high grid leads to higher resolution but requires much calibration time for the system matrix. This work suggests to use small particle diameters with low density trajectory while sampling with low dimension system matrix and fuses these low-resolution (LR) concentrations as a post process to get HR concentrations.

Original language	English
Title of host publication	2015 5th International Workshop on Magnetic Particle Imaging (IWMPI)
Number of pages	1
Publisher	IEEE
Publication date	01.03.2015
ISBN (Print)	978-1-4799-7269-2
ISBN (Electronic)	978-1-4799-7271-5
DOIs	https://doi.org/10.1109/IWMPI.2015.7106995
Publication status	Published - 01.03.2015
Event	5th International Workshop on Magnetic Particle Imaging (IWMPI) - Istanbul, Turkey Duration: 26.03.2015 → 28.03.2015

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title = "High resolution magnetic particle imaging with low density trajectory",

abstract = "The spatial resolution is an important factor in MPI. The trajectory density is one of many parameters affecting the spatial resolution of MPI. To obtain a high-resolution (HR) concentration one can increase the trajectory density or increase particle diameters. However, increasing the trajectory density leads to increase of the computational complexity. Also, large particles suffer from relaxation effects. In addition, imaging with system matrix that exhibits high grid leads to higher resolution but requires much calibration time for the system matrix. This work suggests to use small particle diameters with low density trajectory while sampling with low dimension system matrix and fuses these low-resolution (LR) concentrations as a post process to get HR concentrations.",

author = "H. Medimagh and T.M. Buzug and Omer, {Osama A.}",

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T1 - High resolution magnetic particle imaging with low density trajectory

AU - Medimagh, H.

AU - Buzug, T.M.

AU - Omer, Osama A.

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N2 - The spatial resolution is an important factor in MPI. The trajectory density is one of many parameters affecting the spatial resolution of MPI. To obtain a high-resolution (HR) concentration one can increase the trajectory density or increase particle diameters. However, increasing the trajectory density leads to increase of the computational complexity. Also, large particles suffer from relaxation effects. In addition, imaging with system matrix that exhibits high grid leads to higher resolution but requires much calibration time for the system matrix. This work suggests to use small particle diameters with low density trajectory while sampling with low dimension system matrix and fuses these low-resolution (LR) concentrations as a post process to get HR concentrations.

AB - The spatial resolution is an important factor in MPI. The trajectory density is one of many parameters affecting the spatial resolution of MPI. To obtain a high-resolution (HR) concentration one can increase the trajectory density or increase particle diameters. However, increasing the trajectory density leads to increase of the computational complexity. Also, large particles suffer from relaxation effects. In addition, imaging with system matrix that exhibits high grid leads to higher resolution but requires much calibration time for the system matrix. This work suggests to use small particle diameters with low density trajectory while sampling with low dimension system matrix and fuses these low-resolution (LR) concentrations as a post process to get HR concentrations.

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SN - 978-1-4799-7269-2

T3 - IEEE Proceedings

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PB - IEEE

T2 - 5th International Workshop on Magnetic Particle Imaging (IWMPI)

Y2 - 26 March 2015 through 28 March 2015

ER -

High resolution magnetic particle imaging with low density trajectory

Abstract

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