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: 33 |
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 |
Cite this
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Venous vessel boundary delineation at high field using sigmoid-SWI. / Ng, Amanda Ching Lih; Egan, Gary Francis; Cho, Zang-Hee; Johnston, Leigh Andrea.
Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. ed. / Nigel Lovell. Vol. 2011 United States : IEEE, Institute of Electrical and Electronics Engineers, 2011. p. 2817-2820 6090779.Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Research › peer-review
TY - GEN
T1 - Venous vessel boundary delineation at high field using sigmoid-SWI
AU - Ng, Amanda Ching Lih
AU - Egan, Gary Francis
AU - Cho, Zang-Hee
AU - Johnston, Leigh Andrea
PY - 2011
Y1 - 2011
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84055222617&partnerID=8YFLogxK
U2 - 10.1109/IEMBS.2011.6090779
DO - 10.1109/IEMBS.2011.6090779
M3 - Conference Paper
SN - 1557-170X
VL - 2011
SP - 2817
EP - 2820
BT - Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
A2 - Lovell, Nigel
PB - IEEE, Institute of Electrical and Electronics Engineers
CY - United States
ER -