NDLI: Accuracy analysis of image-based respiratory motion estimation and compensation in respiratory-gated PET reconstruction

Content Provider	IEEE Xplore Digital Library
Author	Si Chen, Tsui, Benjamin M.W.
Copyright Year	2008
Description	Author affiliation: Department of Electrical & Computer Engineering, Johns Hopkins University, Baltimore, MD, USA (Si Chen,) \|\| Division of Medical Imaging Physics, Department of Radiology, Johns Hopkins Medical Institutions, Baltimore, MD, USA (Tsui, Benjamin M.W.)
Abstract	Reconstructed images from respiratory-gated frames of positron emission tomography (PET) data can be used to estimate the patient’s respiratory motion estimation. The estimated motion can then be incorporated into iterative image reconstruction methods for respiratory motion compensation. The objective of this study is to investigate two factors in the PET images that can affect the accuracy of image-based motion estimation: image noise and artifacts due to attenuation map misregistration. 4D XCAT (formerly known as NCAT) digital phantom and Monte-Carlo methods were employed to simulate realistic $F^{18}-FDG$ oncological PET data acquisition of two different noise levels. Hot spherical lesions of different sizes, contrasts and locations in the XCAT phantom were used to simulate tumors in PET imaging. Respiratory-gated PET data were then reconstructed using OS-EM methods with attenuation, uniformity and random coincidence compensation. Two kinds of attenuation maps were used: the attenuation map registered with every respiratory-gated PET frame and that averaged over the respiratory cycle. The image registration method with B-Spline non-rigid transform was applied to the above reconstructed images for motion estimation. The estimated motion was then used to warp the reconstructed images to a reference frame for summation. The recovered contrasts of the lesions were compared for the final reconstructed images from two noise levels using different methods. The results show that the artifacts in PET images due to attenuation map misregistration is another significant factor besides image noise which can affect the motion estimation accuracy.
Starting Page	4292
Ending Page	4295
File Size	5811014
Page Count	4
File Format	PDF
ISBN	9781424427147
ISSN	10957863
DOI	10.1109/NSSMIC.2008.4774232
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-10-19
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Image analysis Image motion analysis Motion estimation Positron emission tomography Image reconstruction Attenuation Noise level Imaging phantoms Lesions Iterative methods
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Motion compensated image reconstruction of respiratory gated PET/CT

Motion Correction for Respiratory Gated PET Images

AW-OSEM parameter optimization for selected events related to the breath-hold CT position in respiratory-gated pet acquisitions

An Attenuation Correction Method for Respiratory-Gated PET/CT Image

Limiting iterations vs. post smoothing for noise control in PET

Compensating respiratory motion in PET image reconstruction using 4D PET/CT

Evaluation of image noise in prospectively respiratory gated PET

Correction of respiratory motion in dual gated cardiac imaging in PET/CT

Scatter Correction Requirements for Likelihood-Based Attenuation Artifact Correction in PET

Accuracy analysis of image-based respiratory motion estimation and compensation in respiratory-gated PET reconstruction

Similar Documents

Motion compensated image reconstruction of respiratory gated PET/CT

Motion Correction for Respiratory Gated PET Images

AW-OSEM parameter optimization for selected events related to the breath-hold CT position in respiratory-gated pet acquisitions

An Attenuation Correction Method for Respiratory-Gated PET/CT Image

Limiting iterations vs. post smoothing for noise control in PET

Compensating respiratory motion in PET image reconstruction using 4D PET/CT

Evaluation of image noise in prospectively respiratory gated PET

Correction of respiratory motion in dual gated cardiac imaging in PET/CT

Scatter Correction Requirements for Likelihood-Based Attenuation Artifact Correction in PET

Accuracy analysis of image-based respiratory motion estimation and compensation in respiratory-gated PET reconstruction