Towards accurate partial volume correction in 99mTc oncology SPECT: perturbation for case-specific resolution estimation

Autor: Rebecca Gillen, Kjell Erlandsson, Ana M. Denis-Bacelar, Kris Thielemans, Brian F. Hutton, Sarah J. McQuaid

Publikováno v: EJNMMI Physics, Vol 9, Iss 1, Pp 1-22 (2022)

Abstract Background Currently, there is no consensus on the optimal partial volume correction (PVC) algorithm for oncology imaging. Several existing PVC methods require knowledge of the reconstructed resolution, usually as the point spread function (

Externí odkaz: https://doaj.org/article/acc08dabf11d4315a9b15086c1d637cd

The Application of a Statistical Shape Model to Diaphragm Tracking in Respiratory-Gated Cardiac PET Images

Autor: V.J. Cunningham, M.C. Gilardi, Tryphon Lambrou, Brian Hutton, V. Bettinardi, Sarah J. McQuaid

Publikováno v: Proceedings of the IEEE 97 (2009): 2039–2052. doi:10.1109/JPROC.2009.2031844
info:cnr-pdr/source/autori:McQuaid S.J. 1, Lambrou T. 1, Cunningham V.J. 2 Bettinardi V. 3 Gilardi M.C. 3,4, Hutton B.F. 1/titolo:The Application of a Statistical Shape Model to Diaphragm Tracking in Respiratory-Gated Cardiac PET Images/doi:10.1109%2FJPROC.2009.2031844/rivista:Proceedings of the IEEE/anno:2009/pagina_da:2039/pagina_a:2052/intervallo_pagine:2039–2052/volume:97

Respiratory-induced diaphragm mismatch between positron emission tomography (PET) and computed tomography (CT) has been identified as a source of attenuation-correction artifact in cardiac PET. Diaphragm tracking in gated PET could therefore form par

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c8cfbdaa1b53c3beb8b2c5eb5a56d9af
https://doi.org/10.1109/jproc.2009.2031844

Performance of a high-sensitivity dedicated cardiac SPECT scanner for striatal uptake quantification in the brain based on analysis of projection data

Autor: Mi-Ae, Park, Stephen C, Moore, Stefan P, Müller, Sarah J, McQuaid, Marie Foley, Kijewski

Publikováno v: Medical physics. 40(4)

The authors have previously reported the advantages of high-sensitivity single-photon emission computed tomography (SPECT) systems for imaging structures located deep inside the brain. DaTscan (Isoflupane I-123) is a dopamine transporter (DaT) imagin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::75383cf72a302b36da177ca4319faa8a
https://pubmed.ncbi.nlm.nih.gov/23556920

Evaluation of a method for projection-based tissue-activity estimation within small volumes-of-interest

Autor: Stephen C. Moore, Sudeepti Southekal, Marie Foley Kijewski, Sarah J. McQuaid

A new method of compensating for tissue-fraction and count-spillover effects, which require tissue segmentation only within a small volume surrounding the primary lesion of interest, was evaluated for SPECT imaging. Tissue-activity concentration esti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::498817bd733000c56fa6a2350bdd38f0
https://europepmc.org/articles/PMC3741654/

Activity estimation in small volumes with non-uniform radiotracer uptake using a local projection-based fitting approach

Autor: Sudeepti Southekal, Stephen C. Moore, Sarah J. McQuaid

Publikováno v: 2011 IEEE Nuclear Science Symposium Conference Record.

We have previously evaluated a local projection-based approach that provides robust estimates of activity concentration in small volumes-of-interest (VOI) affected by partial volume and tissue crosstalk in clinical SPECT imaging. The approach require

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4115804df6722e694fd64bcd7e8fb0c5
https://doi.org/10.1109/nssmic.2011.6153714