NDLI: 3D random walk based segmentation for lung tumor delineation in PET imaging

Content Provider	IEEE Xplore Digital Library
Author	Onoma, D.P. Ruan, S. Gardin, I. Monnehan, G.A. Modzelewski, R. Vera, P.
Copyright Year	2012
Description	Author affiliation: LITIS EA 4108 - QuantIF, University of Rouen (Onoma, D.P.; Ruan, S.; Gardin, I.; Modzelewski, R.; Vera, P.) \|\| LPNR, UFR-SSMT, University of Cocody, 22 BP 582 Abidjan 22, Côte d'Ivoire (Monnehan, G.A.)
Abstract	This article presents a segmentation approach based on random walk (RW) method to delineate tumors having inhomogeneous activity distributions of $^{18}FDG$ on Positron Emission Tomography (PET) images. Based on the original algorithm of RW [1], we propose an improved approach using an adaptive parameter instead of a fixed one and integrating probability densities of label into the system of linear equations used in the RW. The proposed segmentation method initializes automatically seeds in tumor voxels using Fuzzy-C Means (FCM), and then delineates the tumor volume using the improved RW. The performances of the algorithm were assessed on PET images of a physical phantom, covering a range of hot spheres simulating tumor lesions of volume [0.99–97.3 mL] and contrast [2–7.7] for a voxel size of 4.1×4.1×2.0 $mm^{3}.$ A comparison study with a fixed threshold value of 40 % [2] and an adaptative thresholding algorithm [3] have been carried out. Results show that the proposed method is more effective than the other methodologies for spherical volume measurement. The good performances of the improved RW method have been also confirmed on data of three patients having heterogeneous $^{18}FDG$ uptakes.
Starting Page	1260
Ending Page	1263
File Size	251614
Page Count	4
File Format	PDF
ISBN	9781457718571
ISSN	19457928
e-ISBN	9781457718588
DOI	10.1109/ISBI.2012.6235791
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-05-02
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Positron emission tomography Image segmentation Lesions Equations Phantoms Laplace equations uptake heterogeneity Segmentation random walk 3D images FCM PET tumor
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

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