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Artifact free reconstruction with the system matrix approach by overscanning the field-free-point trajectory in magnetic particle imaging

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Artifact free reconstruction with the system matrix approach by overscanning the field-free-point trajectory in magnetic particle imaging. / Weber, A; Werner, F; Weizenecker, J; Buzug, T M; Knopp, T.

In: PHYS MED BIOL, Vol. 61, No. 2, 21.01.2016, p. 475-87.

Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review

Harvard

Weber, A, Werner, F, Weizenecker, J, Buzug, TM & Knopp, T 2016, 'Artifact free reconstruction with the system matrix approach by overscanning the field-free-point trajectory in magnetic particle imaging', PHYS MED BIOL, vol. 61, no. 2, pp. 475-87. https://doi.org/10.1088/0031-9155/61/2/475

APA

Weber, A., Werner, F., Weizenecker, J., Buzug, T. M., & Knopp, T. (2016). Artifact free reconstruction with the system matrix approach by overscanning the field-free-point trajectory in magnetic particle imaging. PHYS MED BIOL, 61(2), 475-87. https://doi.org/10.1088/0031-9155/61/2/475

Vancouver

Weber A, Werner F, Weizenecker J, Buzug TM, Knopp T. Artifact free reconstruction with the system matrix approach by overscanning the field-free-point trajectory in magnetic particle imaging. PHYS MED BIOL. 2016 Jan 21;61(2):475-87. https://doi.org/10.1088/0031-9155/61/2/475

Bibtex

@article{fd8752745d1b4824b56d5c7f2628ff0b,
title = "Artifact free reconstruction with the system matrix approach by overscanning the field-free-point trajectory in magnetic particle imaging",
abstract = "Magnetic particle imaging is a tracer-based imaging method that utilizes the non-linear magnetization response of iron-oxide for determining their spatial distribution. The method is based on a sampling scheme where a sensitive spot is moved along a trajectory that captured a predefined field-of-view (FOV). However, particles outside the FOV also contribute to the measurement signal due to their rotation and the non-sharpness of the sensitive spot. In the present work we investigate artifacts that are induced by particles not covered by the FOV and show that the artifacts can be mitigated by using a system matrix that covers not only the region of interest but also a certain area around the FOV. The findings are especially relevant when using a multi-patch acquisition scheme where the boundaries of neighboring patches have to be handled.",
author = "A Weber and F Werner and J Weizenecker and Buzug, {T M} and T Knopp",
year = "2016",
month = jan,
day = "21",
doi = "10.1088/0031-9155/61/2/475",
language = "English",
volume = "61",
pages = "475--87",
journal = "PHYS MED BIOL",
issn = "0031-9155",
publisher = "IOP Publishing Ltd.",
number = "2",

}

RIS

TY - JOUR

T1 - Artifact free reconstruction with the system matrix approach by overscanning the field-free-point trajectory in magnetic particle imaging

AU - Weber, A

AU - Werner, F

AU - Weizenecker, J

AU - Buzug, T M

AU - Knopp, T

PY - 2016/1/21

Y1 - 2016/1/21

N2 - Magnetic particle imaging is a tracer-based imaging method that utilizes the non-linear magnetization response of iron-oxide for determining their spatial distribution. The method is based on a sampling scheme where a sensitive spot is moved along a trajectory that captured a predefined field-of-view (FOV). However, particles outside the FOV also contribute to the measurement signal due to their rotation and the non-sharpness of the sensitive spot. In the present work we investigate artifacts that are induced by particles not covered by the FOV and show that the artifacts can be mitigated by using a system matrix that covers not only the region of interest but also a certain area around the FOV. The findings are especially relevant when using a multi-patch acquisition scheme where the boundaries of neighboring patches have to be handled.

AB - Magnetic particle imaging is a tracer-based imaging method that utilizes the non-linear magnetization response of iron-oxide for determining their spatial distribution. The method is based on a sampling scheme where a sensitive spot is moved along a trajectory that captured a predefined field-of-view (FOV). However, particles outside the FOV also contribute to the measurement signal due to their rotation and the non-sharpness of the sensitive spot. In the present work we investigate artifacts that are induced by particles not covered by the FOV and show that the artifacts can be mitigated by using a system matrix that covers not only the region of interest but also a certain area around the FOV. The findings are especially relevant when using a multi-patch acquisition scheme where the boundaries of neighboring patches have to be handled.

U2 - 10.1088/0031-9155/61/2/475

DO - 10.1088/0031-9155/61/2/475

M3 - SCORING: Journal article

C2 - 26682648

VL - 61

SP - 475

EP - 487

JO - PHYS MED BIOL

JF - PHYS MED BIOL

SN - 0031-9155

IS - 2

ER -