lnu.sePublikationer
Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
B-spline based Free Form Deformation Thoracic non-rigid registration of CT and PET images
Tehran University of Medical Science, Iran.ORCID-id: 0000-0003-2960-3094
Tehran University of Medical Science, Iran.
Tehran University of Medical Science, Iran.
Tehran University of Medical Science, Iran.
Visa övriga samt affilieringar
2011 (Engelska)Ingår i: Proceedings of SPIE: International Conference on Graphic and Image Processing (ICGIP 2011) / [ed] Yi Xie, Yanjun Zheng, SPIE - International Society for Optical Engineering, 2011Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

Accurate attenuation correction of emission data is mandatory for quantitative analysis of PET images. One of the main concerns in CT-based attenuation correction(CTAC) of PET data in multimodality PET/CT imaging is misalignment between PET and CT images. The aim of this study, is to proposed a hybrid method which is simple, fast and accurate, for registration of PET and CT data which affected from respiratory motion in order to improve the quality of CTAC. The algorithm is composed of three methods: First, using B-spline Free Form Deformation to describe both images and deformation field. Then applying a pre-filtering on both PET and CT images before segmentation of structures in order to reduce the respiratory related attenuation correction artifacts of PET emission data. In this approach, B-spline using FFD provide more accurate adaptive transformation to align the images, and structure constraints obtained from prefiltering applied to guide the algorithm to be more fast and accurate. Also it helps to reduce the radiation dose in PET/CT by avoiding repetition of CT imaging. These advances increase the potential of the method for routine clinical application.

Ort, förlag, år, upplaga, sidor
SPIE - International Society for Optical Engineering, 2011.
Serie
Proceedings of SPIE, ISSN 0277-786X, E-ISSN 1996-756X ; 8285
Nyckelord [en]
Quantitative analysis, Radiation, Signal attenuation
Nationell ämneskategori
Datorseende och robotik (autonoma system) Radiologi och bildbehandling Mediateknik
Forskningsämne
Naturvetenskap
Identifikatorer
URN: urn:nbn:se:lnu:diva-55625DOI: 10.1117/12.913422OAI: oai:DiVA.org:lnu-55625DiVA, id: diva2:953664
Konferens
2011 International Conference on Graphic and Image Processing
Tillgänglig från: 2016-08-18 Skapad: 2016-08-18 Senast uppdaterad: 2018-12-13Bibliografiskt granskad

Open Access i DiVA

Fulltext saknas i DiVA

Övriga länkar

Förlagets fulltext

Personposter BETA

Khodadad, Davood

Sök vidare i DiVA

Av författaren/redaktören
Khodadad, Davood
Datorseende och robotik (autonoma system)Radiologi och bildbehandlingMediateknik

Sök vidare utanför DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetricpoäng

doi
urn-nbn
Totalt: 95 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf