Partial volume correction of quantitative susceptibility maps for oxygen extraction fraction measurements

Phillip Ward; Audrey P. Fan; Parnesh Raniga; David G. Barnes; David L. Dowe; Gary Francis Egan

doi:10.13140/RG.2.2.33257.08800

Partial volume correction of quantitative susceptibility maps for oxygen extraction fraction measurements

Phillip Ward, Audrey P. Fan, Parnesh Raniga, David G. Barnes, David L. Dowe, Gary Francis Egan

Research output: Contribution to conference › Abstract

Abstract

Partial volume effects impede the use of quantitative susceptibility maps for assessing small veins. Oxygen extraction fraction measures are particularly sensitive to these effects. We propose a geometric technique for calculating partial volume from binary venograms. The technique is able to calculate accurate partial
volume maps, and vessel geometry, on simulated veins of sub-voxel radius. These partial volume maps are used to adjust for partial volume effects in estimating venous magnetic susceptibility.

Original language	English
Number of pages	4
DOIs	https://doi.org/10.13140/RG.2.2.33257.08800
Publication status	Published - 2016
Event	ISMRM 24th Annual Meeting & Exhibition - Suntec Singapore Convention & Exhibition Centre, Singapore Duration: 7 May 2016 → 13 May 2016 http://www.ismrm.org/2016-annual-meeting-exhibition/

Conference

Conference	ISMRM 24th Annual Meeting & Exhibition
Abbreviated title	ISMRM
Country	Singapore
Period	7/05/16 → 13/05/16
Internet address	http://www.ismrm.org/2016-annual-meeting-exhibition/

Access to Document

10.13140/RG.2.2.33257.08800

Cite this

Ward, P., Fan, A. P., Raniga, P., Barnes, D. G., Dowe, D. L., & Egan, G. F. (2016). Partial volume correction of quantitative susceptibility maps for oxygen extraction fraction measurements. Abstract from ISMRM 24th Annual Meeting & Exhibition, Singapore. https://doi.org/10.13140/RG.2.2.33257.08800

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abstract = "Partial volume effects impede the use of quantitative susceptibility maps for assessing small veins. Oxygen extraction fraction measures are particularly sensitive to these effects. We propose a geometric technique for calculating partial volume from binary venograms. The technique is able to calculate accurate partialvolume maps, and vessel geometry, on simulated veins of sub-voxel radius. These partial volume maps are used to adjust for partial volume effects in estimating venous magnetic susceptibility.",

author = "Phillip Ward and Fan, {Audrey P.} and Parnesh Raniga and Barnes, {David G.} and Dowe, {David L.} and Egan, {Gary Francis}",

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language = "English",

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T1 - Partial volume correction of quantitative susceptibility maps for oxygen extraction fraction measurements

AU - Ward, Phillip

AU - Fan, Audrey P.

AU - Raniga, Parnesh

AU - Barnes, David G.

AU - Dowe, David L.

AU - Egan, Gary Francis

PY - 2016

Y1 - 2016

N2 - Partial volume effects impede the use of quantitative susceptibility maps for assessing small veins. Oxygen extraction fraction measures are particularly sensitive to these effects. We propose a geometric technique for calculating partial volume from binary venograms. The technique is able to calculate accurate partialvolume maps, and vessel geometry, on simulated veins of sub-voxel radius. These partial volume maps are used to adjust for partial volume effects in estimating venous magnetic susceptibility.

AB - Partial volume effects impede the use of quantitative susceptibility maps for assessing small veins. Oxygen extraction fraction measures are particularly sensitive to these effects. We propose a geometric technique for calculating partial volume from binary venograms. The technique is able to calculate accurate partialvolume maps, and vessel geometry, on simulated veins of sub-voxel radius. These partial volume maps are used to adjust for partial volume effects in estimating venous magnetic susceptibility.

U2 - 10.13140/RG.2.2.33257.08800

DO - 10.13140/RG.2.2.33257.08800

M3 - Abstract

T2 - ISMRM 24th Annual Meeting & Exhibition

Y2 - 7 May 2016 through 13 May 2016

ER -