Motion correction of SPEC projection before reconstruction

dc.contributor.authorOghabian, M. A.
dc.contributor.authorMohammadi, F. I.
dc.contributor.authorSarkar, S.
dc.contributor.authorKarimian, A. R.
dc.contributor.editorSkala, Václav
dc.date.accessioned2013-01-25T08:33:04Z
dc.date.available2013-01-25T08:33:04Z
dc.date.issued2004
dc.description.abstractIn Single Photon Emission Computed Tomography (SPECT), the data acquisition occurs over a relatively long time, typically in the range of 5-30 minutes. During this period, the patient must lie still to guarantee the image quality. Nevertheless, patient movement has frequently been reported in clinical applications. This movement causes misalignment of the projection frames, which degrades the reconstructed image and may introduce artifacts. However, the ability to detect and correct for the motion using a computational method is valuable for quality assurance of SPECT imaging. In this work a correlation function based on Linogram and Sinogram of the projection is evaluated in order to estimate the occurred motion and correct it for the best alignment. By our implemented method the motion artifacts of our cases reduced considerably and our results showed that the misalignment (motion) between the projections could be found with a small error depending on the resolution of the images (pixel size), and the time and duration of the applied motion during the course of projection acquisition.en
dc.format4 s.cs
dc.format.mimetypeapplication/pdf
dc.identifier.citationWSCG '2004: Posters: The 12-th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision, 2.-6. February 2004, Plzen, p. 205-208.en
dc.identifier.isbn80-903100-6-0
dc.identifier.urihttp://wscg.zcu.cz/wscg2004/Papers_2004_Poster/D53.pdf
dc.identifier.urihttp://hdl.handle.net/11025/953
dc.language.isoenen
dc.publisherUNION Agencyen
dc.relation.ispartofseriesWSCG '2004: Postersen
dc.rights© UNION Agencycs
dc.rights.accessopenAccessen
dc.subjectpočítačová tomografiecs
dc.subjectpohyb pacientacs
dc.subjectkorekce pohybucs
dc.subjectkorelační funkcecs
dc.subject.translatedsingle photon emission computed tomographyen
dc.subject.translatedpatient motionen
dc.subject.translatedmotion correctionen
dc.subject.translatedcorrelation functionen
dc.titleMotion correction of SPEC projection before reconstructionen
dc.typekonferenční příspěvekcs
dc.typeconferenceObjecten
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen

Files

Original bundle
Showing 1 - 1 out of 1 results
No Thumbnail Available
Name:
D53.pdf
Size:
372.27 KB
Format:
Adobe Portable Document Format
License bundle
Showing 1 - 1 out of 1 results
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
OPEN License Selector