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dc.contributor.authorChao Chun Huangen_US
dc.contributor.authorYa Hui Linen_US
dc.contributor.authorSamrit Kittipayaken_US
dc.contributor.authorYi Shi Hwuaen_US
dc.contributor.authorShan Ying Wangen_US
dc.contributor.authorLung Kwang Panen_US
dc.contributor.otherTaichung Armed Forces General Hospitalen_US
dc.contributor.otherFar Eastern Memorial Hospital Taiwanen_US
dc.contributor.otherCentral Taiwan University of Science and Technologyen_US
dc.contributor.otherMahidol Universityen_US
dc.date.accessioned2020-06-02T03:58:35Z-
dc.date.available2020-06-02T03:58:35Z-
dc.date.issued2020-05-01en_US
dc.identifier.citationPLoS ONE. Vol.15, No.5 (2020)en_US
dc.identifier.issn19326203en_US
dc.identifier.other2-s2.0-85084277510en_US
dc.identifier.urihttp://repository.li.mahidol.ac.th/dspace/handle/123456789/56077-
dc.description.abstract© 2020 Huang et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. A five-compartmental biokinetic model of I-131 radioiodine based on in-vivo gamma camera scanning results was developed and successfully applied to nine thyroid cancer patients who were administered 1,110 MBq I-131 in capsules for the residual thyroid gland ablation. The I-131 solution activity among internal organs was analyzed via the revised biokinetic model of iodine recommended by the ICRP-30 and -56 reports. Accordingly, a five-compartmental (stomach, body fluid, thyroid, whole body, and excretion) model was established to simulate the metabolic mechanism of I-131 in thyroid cancer patients, whereas the respective four simultaneous differential equations were solved via a self-developed program run in MATLAB. This made it possible to provide a close correlation between MATLAB simulation results and empirical data. The latter data were collected through in-vivo gamma camera scans of nine patients obtained after 1, 4, 24, 48, 72, and 168 hours after radioactive I-131 administration. The average biological half-life values for the stomach, body fluid, thyroid, and whole body of thyroid cancer patients under study were 0.54±0.32, 12.6±1.8, 42.8±5.1, and 12.6±1.8 h, respectively. The corresponding branching ratios I12, I23, I25, I34, I42, and I45 as denoted in the biokinetic model of iodine were 1.0, 0.21±0.14, 0.79±0.14, 1.0, 0.1, and 0.9, respectively. The average values of the AT dimensionless index used to verify the agreement between empirical and numerical simulation results were 0.056±0.017, 0.017±0.014, 0.044±0.023, and 0.045±0.009 for the stomach, thyroid, body fluid + whole body, and total, respectively. The results obtained were considered quite instrumental in the elucidation of metabolic mechanisms in the human body, particularly in thyroid cancer patients.en_US
dc.rightsMahidol Universityen_US
dc.source.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85084277510&origin=inwarden_US
dc.subjectAgricultural and Biological Sciencesen_US
dc.subjectBiochemistry, Genetics and Molecular Biologyen_US
dc.subjectMultidisciplinaryen_US
dc.titleBiokinetic model of radioiodine I-131 in nine thyroid cancer patients subjected to in-vivo gamma camera scanning: A simplified five-compartmental modelen_US
dc.typeArticleen_US
dc.rights.holderSCOPUSen_US
dc.identifier.doi10.1371/journal.pone.0232480en_US
dc.identifier.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85084277510&origin=inwarden_US
Appears in Collections:Scopus 2020

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