Rapid Acquisition of PET Attenuation Maps from Highly Undersampled UTE Images Using Sparse-SENSE Reconstruction

Andy Aitken; Christoph Kolbitsch; Tobias Schaeffter; Claudia Prieto Vasquez

Rapid Acquisition of PET Attenuation Maps from Highly Undersampled UTE Images Using Sparse-SENSE Reconstruction

Andy Aitken, Christoph Kolbitsch, Tobias Schaeffter, Claudia Prieto Vasquez

Biomedical Engineering Department

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

Abstract

Attenuation correction (AC) maps that accurately depict bone are required for precise PET reconstruction. Segmented AC maps can be obtained from ultrashort echo time (UTE) MR imaging. However, the clinical use of high resolution UTE in simultaneous PET/MR is limited by the long scan time (>7 minutes for the head). We show, in prospectively undersampled acquisitions, that compressed sensing combined with parallel imaging can be used to reduce the scan time to less than one minute, while retaining accurate AC-maps with respect to those produced from fully sampled data

Original language	English
Title of host publication	Proceedings of the 21st Annual Meeting of ISMRM, Salt Lake City, Utah
Publisher	ISMRM
Publication status	Published - 1 Apr 2013

Publication series

Name	Proceedings of the Annual Meeting of ISMRM
Publisher	ISMRM
Volume	21
ISSN (Electronic)	1545-4428

Access to Document

http://cds.ismrm.org/protected/13MPresentations/abstracts/0769.pdf

Cite this

Aitken, A., Kolbitsch, C., Schaeffter, T., & Prieto Vasquez, C. (2013). Rapid Acquisition of PET Attenuation Maps from Highly Undersampled UTE Images Using Sparse-SENSE Reconstruction. In Proceedings of the 21st Annual Meeting of ISMRM, Salt Lake City, Utah Article 0769 (Proceedings of the Annual Meeting of ISMRM; Vol. 21). ISMRM. http://cds.ismrm.org/protected/13MPresentations/abstracts/0769.pdf

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title = "Rapid Acquisition of PET Attenuation Maps from Highly Undersampled UTE Images Using Sparse-SENSE Reconstruction",

abstract = "Attenuation correction (AC) maps that accurately depict bone are required for precise PET reconstruction. Segmented AC maps can be obtained from ultrashort echo time (UTE) MR imaging. However, the clinical use of high resolution UTE in simultaneous PET/MR is limited by the long scan time (>7 minutes for the head). We show, in prospectively undersampled acquisitions, that compressed sensing combined with parallel imaging can be used to reduce the scan time to less than one minute, while retaining accurate AC-maps with respect to those produced from fully sampled data",

author = "Andy Aitken and Christoph Kolbitsch and Tobias Schaeffter and {Prieto Vasquez}, Claudia",

year = "2013",

month = apr,

day = "1",

language = "English",

series = "Proceedings of the Annual Meeting of ISMRM",

publisher = "ISMRM",

booktitle = "Proceedings of the 21st Annual Meeting of ISMRM, Salt Lake City, Utah",

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Aitken, A , Kolbitsch, C , Schaeffter, T & Prieto Vasquez, C 2013, Rapid Acquisition of PET Attenuation Maps from Highly Undersampled UTE Images Using Sparse-SENSE Reconstruction. in Proceedings of the 21st Annual Meeting of ISMRM, Salt Lake City, Utah., 0769, Proceedings of the Annual Meeting of ISMRM, vol. 21, ISMRM. <http://cds.ismrm.org/protected/13MPresentations/abstracts/0769.pdf>

Rapid Acquisition of PET Attenuation Maps from Highly Undersampled UTE Images Using Sparse-SENSE Reconstruction. / Aitken, Andy ; Kolbitsch, Christoph ; Schaeffter, Tobias et al.
Proceedings of the 21st Annual Meeting of ISMRM, Salt Lake City, Utah. ISMRM, 2013. 0769 (Proceedings of the Annual Meeting of ISMRM; Vol. 21).

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

TY - CHAP

T1 - Rapid Acquisition of PET Attenuation Maps from Highly Undersampled UTE Images Using Sparse-SENSE Reconstruction

AU - Aitken, Andy

AU - Kolbitsch, Christoph

AU - Schaeffter, Tobias

AU - Prieto Vasquez, Claudia

PY - 2013/4/1

Y1 - 2013/4/1

N2 - Attenuation correction (AC) maps that accurately depict bone are required for precise PET reconstruction. Segmented AC maps can be obtained from ultrashort echo time (UTE) MR imaging. However, the clinical use of high resolution UTE in simultaneous PET/MR is limited by the long scan time (>7 minutes for the head). We show, in prospectively undersampled acquisitions, that compressed sensing combined with parallel imaging can be used to reduce the scan time to less than one minute, while retaining accurate AC-maps with respect to those produced from fully sampled data

AB - Attenuation correction (AC) maps that accurately depict bone are required for precise PET reconstruction. Segmented AC maps can be obtained from ultrashort echo time (UTE) MR imaging. However, the clinical use of high resolution UTE in simultaneous PET/MR is limited by the long scan time (>7 minutes for the head). We show, in prospectively undersampled acquisitions, that compressed sensing combined with parallel imaging can be used to reduce the scan time to less than one minute, while retaining accurate AC-maps with respect to those produced from fully sampled data

M3 - Conference paper

T3 - Proceedings of the Annual Meeting of ISMRM

BT - Proceedings of the 21st Annual Meeting of ISMRM, Salt Lake City, Utah

PB - ISMRM

ER -

Rapid Acquisition of PET Attenuation Maps from Highly Undersampled UTE Images Using Sparse-SENSE Reconstruction

Abstract

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