Metal artifact reduction in computed tomography using nonequispaced fourier transform

Bärbel Kratz; Thorsten M. Buzug

doi:10.1109/NSSMIC.2009.5401974

Metal artifact reduction in computed tomography using nonequispaced fourier transform

Institut für Medizintechnik

Abstract

Metal objects in the field of view of a computed tomography (CT) scanner cause several artifacts inside the reconstructed image. By reducing the influence of these metallic objects the image quality can be enhanced. We propose a metal artifact reduction (MAR) method based on interpolation using Nonequispaced Fast Fourier Transforms (NFFT). By damping the transformation additional a priori knowledge may be included during the interpolation step. The results are reconstructed with a weighted maximum likelihood expectation maximization algorithm (λ-MLEM) and finally compared to two common one dimensional polynomial interpolation methods.

Originalsprache	Englisch
Titel	2009 IEEE Nuclear Science Symposium Conference Record (NSS/MIC)
Seitenumfang	4
Herausgeber (Verlag)	IEEE
Erscheinungsdatum	01.12.2009
Seiten	2720-2723
Aufsatznummer	5401974
ISBN (Print)	978-1-4244-3962-1, 978-1-4244-3961-4
DOIs	https://doi.org/10.1109/NSSMIC.2009.5401974
Publikationsstatus	Veröffentlicht - 01.12.2009
Veranstaltung	2009 IEEE Nuclear Science Symposium Conference Record - Orlando, USA / Vereinigte Staaten Dauer: 25.10.2009 → 31.10.2009 Konferenznummer: 79860

UN SDGs

Dieser Output leistet einen Beitrag zu folgendem(n) Ziel(en) für nachhaltige Entwicklung

Dokumente

10.1109/NSSMIC.2009.5401974

Weitere Links

https://www.scopus.com/record/display.uri?eid=2-s2.0-77951160186&origin=inward&txGid=467a302879ae8695bafa261c18d36966

Zitieren

@inproceedings{f7eda54fa042423d9d33c5c01e910757,

title = "Metal artifact reduction in computed tomography using nonequispaced fourier transform",

abstract = "Metal objects in the field of view of a computed tomography (CT) scanner cause several artifacts inside the reconstructed image. By reducing the influence of these metallic objects the image quality can be enhanced. We propose a metal artifact reduction (MAR) method based on interpolation using Nonequispaced Fast Fourier Transforms (NFFT). By damping the transformation additional a priori knowledge may be included during the interpolation step. The results are reconstructed with a weighted maximum likelihood expectation maximization algorithm (λ-MLEM) and finally compared to two common one dimensional polynomial interpolation methods.",

author = "B{\"a}rbel Kratz and Buzug, {Thorsten M.}",

year = "2009",

month = dec,

day = "1",

doi = "10.1109/NSSMIC.2009.5401974",

language = "English",

isbn = "978-1-4244-3962-1",

series = "IEEE Nuclear Science Symposium Conference Record",

publisher = "IEEE",

pages = "2720--2723",

booktitle = "2009 IEEE Nuclear Science Symposium Conference Record (NSS/MIC)",

note = "2009 IEEE Nuclear Science Symposium Conference Record <br/>, NSS/MIC 2009 ; Conference date: 25-10-2009 Through 31-10-2009",

}

Kratz, B & Buzug, TM 2009, Metal artifact reduction in computed tomography using nonequispaced fourier transform. in 2009 IEEE Nuclear Science Symposium Conference Record (NSS/MIC)., 5401974, IEEE Nuclear Science Symposium Conference Record, IEEE, S. 2720-2723, 2009 IEEE Nuclear Science Symposium Conference Record
, Orlando, Florida, USA / Vereinigte Staaten, 25.10.09. https://doi.org/10.1109/NSSMIC.2009.5401974

Metal artifact reduction in computed tomography using nonequispaced fourier transform. / Kratz, Bärbel; Buzug, Thorsten M.
2009 IEEE Nuclear Science Symposium Conference Record (NSS/MIC). IEEE, 2009. S. 2720-2723 5401974 (IEEE Nuclear Science Symposium Conference Record).

Publikation: Kapitel in Büchern/Berichten/Konferenzbänden › Konferenzbeitrag › Begutachtung

TY - GEN

T1 - Metal artifact reduction in computed tomography using nonequispaced fourier transform

AU - Kratz, Bärbel

AU - Buzug, Thorsten M.

N1 - Conference code: 79860

PY - 2009/12/1

Y1 - 2009/12/1

N2 - Metal objects in the field of view of a computed tomography (CT) scanner cause several artifacts inside the reconstructed image. By reducing the influence of these metallic objects the image quality can be enhanced. We propose a metal artifact reduction (MAR) method based on interpolation using Nonequispaced Fast Fourier Transforms (NFFT). By damping the transformation additional a priori knowledge may be included during the interpolation step. The results are reconstructed with a weighted maximum likelihood expectation maximization algorithm (λ-MLEM) and finally compared to two common one dimensional polynomial interpolation methods.

AB - Metal objects in the field of view of a computed tomography (CT) scanner cause several artifacts inside the reconstructed image. By reducing the influence of these metallic objects the image quality can be enhanced. We propose a metal artifact reduction (MAR) method based on interpolation using Nonequispaced Fast Fourier Transforms (NFFT). By damping the transformation additional a priori knowledge may be included during the interpolation step. The results are reconstructed with a weighted maximum likelihood expectation maximization algorithm (λ-MLEM) and finally compared to two common one dimensional polynomial interpolation methods.

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-77951160186&origin=inward&txGid=467a302879ae8695bafa261c18d36966

U2 - 10.1109/NSSMIC.2009.5401974

DO - 10.1109/NSSMIC.2009.5401974

M3 - Conference contribution

SN - 978-1-4244-3962-1

SN - 978-1-4244-3961-4

T3 - IEEE Nuclear Science Symposium Conference Record

SP - 2720

EP - 2723

BT - 2009 IEEE Nuclear Science Symposium Conference Record (NSS/MIC)

PB - IEEE

T2 - 2009 IEEE Nuclear Science Symposium Conference Record <br/>

Y2 - 25 October 2009 through 31 October 2009

ER -

Metal artifact reduction in computed tomography using nonequispaced fourier transform

Abstract

UN SDGs

Dokumente

Weitere Links

Fingerprint

Zitieren