English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Correction of Physiologically Induced Global Off-Resonance Effects in Dynamic Echo-Planar and Spiral Functional Imaging

Pfeuffer, J., Van de Moortele, P.-F., Ugurbil, K., Hu, X., & Glover, G. (2002). Correction of Physiologically Induced Global Off-Resonance Effects in Dynamic Echo-Planar and Spiral Functional Imaging. Poster presented at 10th Scientific Meeting of the International Society of Magnetic Resonance in Medicine (ISMRM 2002), Honolulu, HI, USA.

Item is

Files

show Files

Locators

show
hide
Description:
-

Creators

show
hide
 Creators:
Pfeuffer, J1, Author              
Van de Moortele , P-F, Author
Ugurbil, K, Author
Hu, X, Author
Glover, GH, Author
Affiliations:
1External Organizations, ou_persistent22              

Content

show
hide
Free keywords: -
 Abstract: To decrease noise from respiration induced phase and frequency fluctuations, a simple correction of the "Dynamic Off-Resonance in K-space" (DORK) was developed. The correction uses phase information from the center of k-space and a navigator echo, and is illustrated with dynamic scans of single-shot and segmented EPI and, for the first time, spiral imaging of the human brain at 7T. The DORK correction significantly reduced artifacts: pixel shift for EPI, blurring for spiral, and ghosting. While spiral imaging was found to exhibit less noise than EPI before correction, the residual noise after the DORK correction was comparable.

Details

show
hide
Language(s):
 Dates: 2002-05
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: BibTex Citekey: 1224
 Degree: -

Event

show
hide
Title: 10th Scientific Meeting of the International Society of Magnetic Resonance in Medicine (ISMRM 2002)
Place of Event: Honolulu, HI, USA
Start-/End Date: 2002-05-18 - 2002-05-24

Legal Case

show

Project information

show

Source 1

show
hide
Title: 10th Scientific Meeting of the International Society of Magnetic Resonance in Medicine (ISMRM 2002)
Source Genre: Proceedings
 Creator(s):
Affiliations:
Publ. Info: -
Pages: - Volume / Issue: - Sequence Number: 2330 Start / End Page: - Identifier: -