Abstract
Susceptibility Weighted Imaging (SWI) is an increasingly utilised MRI technique for enhancing image contrast by attenuating magnitude data with a mask derived from the phase data. It is particularly useful for venography, however at higher field strengths, the effects of localised magnetic susceptibility differences lead to ill-defined edges within SWI images and overestimation of widths in large veins oriented perpendicular to the main field. We propose a variation on SWI, sigmoid-SWI, that removes the vessel boundary artefacts, resulting in clearer visibility of edges and more accurate widths of venous vessels.
Original language | English |
---|---|
Title of host publication | Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings |
Editors | Nigel Lovell |
Place of Publication | United States |
Publisher | IEEE, Institute of Electrical and Electronics Engineers |
Pages | 2817-2820 |
Number of pages | 4 |
Volume | 2011 |
ISBN (Print) | 1557-170X |
DOIs | |
Publication status | Published - 2011 |
Event | International Conference of the IEEE Engineering in Medicine and Biology Society 2011 - Boston Marriott Copley Place Hotel, Boston, United States of America Duration: 30 Aug 2011 → 3 Sep 2011 Conference number: 33rd |
Conference
Conference | International Conference of the IEEE Engineering in Medicine and Biology Society 2011 |
---|---|
Abbreviated title | EMBC 2011 |
Country | United States of America |
City | Boston |
Period | 30/08/11 → 3/09/11 |