Zobrazeno 1 - 10 of 104 pro vyhledávání: '"Kenneth J. Nichols"'
1
Akademický článek
Quantification of SPECT Concentric Ring Artifacts by Radiomics and Radial Features
Autor: Emilio Mezzenga, Anna Sarnelli, Giovanni Bellomo, Frank P. DiFilippo, Christopher J. Palestro, Kenneth J. Nichols
Publikováno v: Applied Sciences, Vol 12, Iss 5, p 2726 (2022)
(1) Background: Concentric ring artifacts in reconstructed SPECT images indicate the presence of detector non-uniformity in gamma camera systems. The identification of these artifacts is generally visual and not quantitative. The aim of our study was
Externí odkaz: https://doaj.org/article/43f6f95d4fbd481985e07e8acbb08a1b
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2
Akademický článek
Interpreting 123I–ioflupane dopamine transporter scans using hybrid scores
Autor: Kenneth J. Nichols, Brandon Chen, Maria B. Tomas, Christopher J. Palestro
Publikováno v: European Journal of Hybrid Imaging, Vol 2, Iss 1, Pp 1-13 (2018)
Abstract Background Dopamine transporter (DaT) 123I–FP-CIT scans most commonly are interpreted visually. Alternatively, absolute quantitation of radiopharmaceutical uptake may improve scan accuracy. However, neither approach accomodates dependence
Externí odkaz: https://doaj.org/article/1826b1bbd23e4ed988a4cd890736f9df
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6
Computational approaches to detect small lesions in 18F‐FDG PET/CT scans
Autor: Christopher J. Palestro, Frank P. DiFilippo, Kenneth J. Nichols
Publikováno v: Journal of Applied Clinical Medical Physics
Purpose When physicians interpret 18F‐FDG PET/CT scans, they rely on their subjective visual impression of the presence of small lesions, the criteria for which may vary among readers. Our investigation used physical phantom scans to evaluate wheth
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bab385f71a6f2e376a47301bcce1c6e0
http://europepmc.org/articles/PMC8664135
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7
Clinical implications of compromised 82Rb PET data acquisition
Autor: Christopher J. Palestro, J. Jane Cao, Kenneth J. Nichols, C. David Cooke, John R. Votaw, Andrew Van Tosh
Publikováno v: Journal of Nuclear Cardiology. 29:2583-2594
We wished to document the prevalence and quantitative effects of compromised 82Rb PET data acquisitions on myocardial flow reserve (MFR). Data were analyzed retrospectively for 246 rest and regadenoson-stress studies of 123 patients evaluated for kno
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2447643254d6e830b9a1b4c88c60cbe6
https://doi.org/10.1007/s12350-021-02774-9
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8
Comparison and validation of automated scoring of SPECT phantom cold rod visibility
Autor: Kenneth J. Nichols, Christopher J. Palestro, Frank P. DiFilippo
Publikováno v: Medical Physics. 48:2838-2846
PURPOSE Evaluation of phantom image quality is an integral component of the quality assurance of SPECT systems. This evaluation often is done by visual assessment of the resolution of known structures of a specified size, such as arrays of cold rods
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d725e63d68a30be3a38c6e43403e1a63
https://doi.org/10.1002/mp.14776
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