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Iterative reconstruction method based on median root prior in quantification with PET

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Iterative reconstruction method based on median root prior in quantification with PET. / Katoh, C; Alenius, S; Ruotsalainen, U.

Positron Emission Tomography in the Millennium. ed. / N Tamaki; E Tsukamoto; Y Kuge; C Katoh; K Morita. Amsterdam : Elsevier Science Publishers B.V., 2000. p. 265-270 (INTERNATIONAL CONGRESS SERIES; Vol. 1197).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Harvard

Katoh, C, Alenius, S & Ruotsalainen, U 2000, Iterative reconstruction method based on median root prior in quantification with PET. in N Tamaki, E Tsukamoto, Y Kuge, C Katoh & K Morita (eds), Positron Emission Tomography in the Millennium. INTERNATIONAL CONGRESS SERIES, vol. 1197, Elsevier Science Publishers B.V., Amsterdam, pp. 265-270, International Positron Emission Tomography Symposium (PET), Japan, 24/09/99.

APA

Katoh, C., Alenius, S., & Ruotsalainen, U. (2000). Iterative reconstruction method based on median root prior in quantification with PET. In N. Tamaki, E. Tsukamoto, Y. Kuge, C. Katoh, & K. Morita (Eds.), Positron Emission Tomography in the Millennium (pp. 265-270). (INTERNATIONAL CONGRESS SERIES; Vol. 1197). Amsterdam: Elsevier Science Publishers B.V..

Vancouver

Katoh C, Alenius S, Ruotsalainen U. Iterative reconstruction method based on median root prior in quantification with PET. In Tamaki N, Tsukamoto E, Kuge Y, Katoh C, Morita K, editors, Positron Emission Tomography in the Millennium. Amsterdam: Elsevier Science Publishers B.V. 2000. p. 265-270. (INTERNATIONAL CONGRESS SERIES).

Author

Katoh, C ; Alenius, S ; Ruotsalainen, U. / Iterative reconstruction method based on median root prior in quantification with PET. Positron Emission Tomography in the Millennium. editor / N Tamaki ; E Tsukamoto ; Y Kuge ; C Katoh ; K Morita. Amsterdam : Elsevier Science Publishers B.V., 2000. pp. 265-270 (INTERNATIONAL CONGRESS SERIES).

Bibtex - Download

@inproceedings{34fea505c361475593266fae8b7f4469,
title = "Iterative reconstruction method based on median root prior in quantification with PET",
abstract = "The aim of this study was to compare reproducibility and accuracy of two reconstruction methods in quantification of regional myocardial blood flow (rMBF) and oxygen metabolism with [O-15] labeled tracers and positron emission tomography (PET). A new iterative Bayesian reconstruction method based on median root prior (MRP) was compared with filtered back-projection (FBP) method.Methods, rMBF, oxygen extraction fraction (rOEF) and myocardial metabolic rate of oxygen consumption (rMMRO(2)) were quantified from images reconstructed using both MRP and FBP in 27 subjects. For each subject, regions of interest (ROIs) were drawn on the lateral, anterior and septal regions on four planes. To test the reproducibility, the ROI drawing procedure was repeated. Using two sets of ROIs, variability was evaluated with MRP and FBP images.Results. Correlation coefficients of rMBF rOEF and rMMRO(2) were significantly higher in MRP images than in FBP images. Coefficient of variations for each parameter was significantly lower in MRP images than in FBP.Conclusion. MRP reconstruction provides higher reproducibility and lower variability in the quantitative myocardial parameters compared with FBP. This study presents that the new MRP reconstruction improves accuracy and stability of clinical quantification of myocardial blood flow and oxygen metabolism with [O-15] and PET.",
keywords = "Bayesian reconstruction, metabolic rate of oxygen consumption, myocardial blood flow, POSITRON-EMISSION TOMOGRAPHY, MYOCARDIAL BLOOD-FLOW, INHALATION",
author = "C Katoh and S Alenius and U Ruotsalainen",
year = "2000",
language = "English",
isbn = "0-444-50385-4",
series = "INTERNATIONAL CONGRESS SERIES",
publisher = "Elsevier Science Publishers B.V.",
pages = "265--270",
editor = "N Tamaki and E Tsukamoto and Y Kuge and C Katoh and K Morita",
booktitle = "Positron Emission Tomography in the Millennium",

}

RIS (suitable for import to EndNote) - Download

TY - GEN

T1 - Iterative reconstruction method based on median root prior in quantification with PET

AU - Katoh, C

AU - Alenius, S

AU - Ruotsalainen, U

PY - 2000

Y1 - 2000

N2 - The aim of this study was to compare reproducibility and accuracy of two reconstruction methods in quantification of regional myocardial blood flow (rMBF) and oxygen metabolism with [O-15] labeled tracers and positron emission tomography (PET). A new iterative Bayesian reconstruction method based on median root prior (MRP) was compared with filtered back-projection (FBP) method.Methods, rMBF, oxygen extraction fraction (rOEF) and myocardial metabolic rate of oxygen consumption (rMMRO(2)) were quantified from images reconstructed using both MRP and FBP in 27 subjects. For each subject, regions of interest (ROIs) were drawn on the lateral, anterior and septal regions on four planes. To test the reproducibility, the ROI drawing procedure was repeated. Using two sets of ROIs, variability was evaluated with MRP and FBP images.Results. Correlation coefficients of rMBF rOEF and rMMRO(2) were significantly higher in MRP images than in FBP images. Coefficient of variations for each parameter was significantly lower in MRP images than in FBP.Conclusion. MRP reconstruction provides higher reproducibility and lower variability in the quantitative myocardial parameters compared with FBP. This study presents that the new MRP reconstruction improves accuracy and stability of clinical quantification of myocardial blood flow and oxygen metabolism with [O-15] and PET.

AB - The aim of this study was to compare reproducibility and accuracy of two reconstruction methods in quantification of regional myocardial blood flow (rMBF) and oxygen metabolism with [O-15] labeled tracers and positron emission tomography (PET). A new iterative Bayesian reconstruction method based on median root prior (MRP) was compared with filtered back-projection (FBP) method.Methods, rMBF, oxygen extraction fraction (rOEF) and myocardial metabolic rate of oxygen consumption (rMMRO(2)) were quantified from images reconstructed using both MRP and FBP in 27 subjects. For each subject, regions of interest (ROIs) were drawn on the lateral, anterior and septal regions on four planes. To test the reproducibility, the ROI drawing procedure was repeated. Using two sets of ROIs, variability was evaluated with MRP and FBP images.Results. Correlation coefficients of rMBF rOEF and rMMRO(2) were significantly higher in MRP images than in FBP images. Coefficient of variations for each parameter was significantly lower in MRP images than in FBP.Conclusion. MRP reconstruction provides higher reproducibility and lower variability in the quantitative myocardial parameters compared with FBP. This study presents that the new MRP reconstruction improves accuracy and stability of clinical quantification of myocardial blood flow and oxygen metabolism with [O-15] and PET.

KW - Bayesian reconstruction

KW - metabolic rate of oxygen consumption

KW - myocardial blood flow

KW - POSITRON-EMISSION TOMOGRAPHY

KW - MYOCARDIAL BLOOD-FLOW

KW - INHALATION

M3 - Conference contribution

SN - 0-444-50385-4

T3 - INTERNATIONAL CONGRESS SERIES

SP - 265

EP - 270

BT - Positron Emission Tomography in the Millennium

A2 - Tamaki, N

A2 - Tsukamoto, E

A2 - Kuge, Y

A2 - Katoh, C

A2 - Morita, K

PB - Elsevier Science Publishers B.V.

CY - Amsterdam

ER -