Venous vessel boundary delineation at high field using sigmoid-SWI

Amanda Ching Lih Ng; Gary Francis Egan; Zang-Hee Cho; Leigh Andrea Johnston

doi:10.1109/IEMBS.2011.6090779

Venous vessel boundary delineation at high field using sigmoid-SWI

Amanda Ching Lih Ng, Gary Francis Egan, Zang-Hee Cho, Leigh Andrea Johnston

Monash Biomedical Imaging

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Research › peer-review

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	https://doi.org/10.1109/IEMBS.2011.6090779
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

Access to Document

10.1109/IEMBS.2011.6090779

Link to publication in Scopus

Cite this

Ng, A. C. L., Egan, G. F., Cho, Z-H., & Johnston, L. A. (2011). Venous vessel boundary delineation at high field using sigmoid-SWI. In N. Lovell (Ed.), Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings (Vol. 2011, pp. 2817-2820). [6090779] IEEE, Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/IEMBS.2011.6090779

Ng, Amanda Ching Lih ; Egan, Gary Francis ; Cho, Zang-Hee ; Johnston, Leigh Andrea. / Venous vessel boundary delineation at high field using sigmoid-SWI. Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. editor / Nigel Lovell. Vol. 2011 United States : IEEE, Institute of Electrical and Electronics Engineers, 2011. pp. 2817-2820

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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.",

author = "Ng, {Amanda Ching Lih} and Egan, {Gary Francis} and Zang-Hee Cho and Johnston, {Leigh Andrea}",

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Ng, ACL, Egan, GF, Cho, Z-H & Johnston, LA 2011, Venous vessel boundary delineation at high field using sigmoid-SWI. in N Lovell (ed.), Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. vol. 2011, 6090779, IEEE, Institute of Electrical and Electronics Engineers, United States, pp. 2817-2820, International Conference of the IEEE Engineering in Medicine and Biology Society 2011, Boston, United States of America, 30/08/11. https://doi.org/10.1109/IEMBS.2011.6090779

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

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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.

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Ng ACL, Egan GF, Cho Z-H, Johnston LA. Venous vessel boundary delineation at high field using sigmoid-SWI. In Lovell N, editor, Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. Vol. 2011. United States: IEEE, Institute of Electrical and Electronics Engineers. 2011. p. 2817-2820. 6090779 https://doi.org/10.1109/IEMBS.2011.6090779