liu.seSearch for publications in DiVA
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
3D Magnetic Resonance Imaging of the Human Brain - Novel Radial Sampling, Filtering and Reconstruction
Linköping University, Department of Electrical Engineering, Computer Vision. Linköping University, The Institute of Technology. Linköping University, Center for Medical Image Science and Visualization (CMIV).ORCID iD: 0000-0002-9072-2204
Linköping University, Department of Medical and Health Sciences, Radiation Physics. Linköping University, Faculty of Health Sciences. Linköping University, Center for Medical Image Science and Visualization (CMIV).
Linköping University, Department of Medical and Health Sciences, Radiation Physics. Linköping University, Faculty of Health Sciences. Linköping University, Center for Medical Image Science and Visualization (CMIV).
Linköping University, Department of Medical and Health Sciences, Radiation Physics. Linköping University, Faculty of Health Sciences. Linköping University, Center for Medical Image Science and Visualization (CMIV).
Show others and affiliations
2010 (English)In: Proc of the 12th IASTED International Conference on Signal and Image Processing (SIP 2010), August 23 - 25, 2010, Lahaina, Maui, USA / [ed] B. Flinchbaugh, Calgary, AB, Canada: ACTA Press, 2010, Track: 710-042-(8 pages) p.Conference paper, Published paper (Refereed)
Abstract [en]

We have suggested a novel method PRESTO-CAN including radial sampling, filtering and reconstruction of k-space data for 3D-plus-time resolved MRI. The angular increment of the profiles was based on the golden ratio, but the number of angular positions N was locked to be a prime number which guaranteed fix angle positions.The time resolution increased dramatically when the pro-files were partly removed from the k-space using the hourglass filter.We aim for utilizing the MRI-data for fMRI, where the echo times are long, TE ≈ 37-40 ms. This will result in field inhomogeneities and phase variations in the reconstructed images. Therefore, a new calibration and correction procedure was developed. We show that we are able to reconstruct images of the human brain with an image quality in line with what can be obtained by conventional Cartesian sampling.The pulse sequence for PRESTO-CAN was implemented by modifying an existing PRESTO sequence for Cartesian sampling. The effort involved was relatively small and a great advantage will be that we are able to use standard procedures for speeding up data acquisition, i.e. parallel imaging with SENSE.

Place, publisher, year, edition, pages
Calgary, AB, Canada: ACTA Press, 2010. Track: 710-042-(8 pages) p.
Series
ACTA Press, ISSN 1482-7921
Keyword [en]
fMRI, MRI, radial reconstruction, golden ratio
National Category
Medical Laboratory and Measurements Technologies
Identifiers
URN: urn:nbn:se:liu:diva-64067ISBN: 9780889868687 (print)OAI: oai:DiVA.org:liu-64067DiVA: diva2:386056
Conference
12th IASTED International Conference on Signal and Image Processing (SIP 2010)
Available from: 2011-01-13 Created: 2011-01-12 Last updated: 2015-03-17Bibliographically approved

Open Access in DiVA

fulltext(1025 kB)1217 downloads
File information
File name FULLTEXT01.pdfFile size 1025 kBChecksum SHA-512
ca53264675382539b7e6406aa9e41e172e7e09febc458ae470ebdad0d3e7a1d24d22aa0353728d7287eb577a2bfa708c0eb0b8f93984215b132dd3c9ec7b9893
Type fulltextMimetype application/pdf

Other links

http://www.actapress.com/Abstract.aspx?paperId=41253

Authority records BETA

Magnusson, MariaDahlqvist Leinhard, OlofBrynolfsson, PatrikLundberg, Peter

Search in DiVA

By author/editor
Magnusson, MariaDahlqvist Leinhard, OlofBrynolfsson, PatrikLundberg, Peter
By organisation
Computer VisionThe Institute of TechnologyCenter for Medical Image Science and Visualization (CMIV)Radiation PhysicsFaculty of Health SciencesRadiologyDepartment of Radiology in Linköping
Medical Laboratory and Measurements Technologies

Search outside of DiVA

GoogleGoogle Scholar
Total: 1217 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

isbn
urn-nbn

Altmetric score

isbn
urn-nbn
Total: 444 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf