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Single-cell dosimet...
Single-cell dosimetry for radioimmunotherapy of B-cell lymphoma patients with special reference to leukemic spread
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- Hindorf, Cecilia (author)
- Lund University,Lunds universitet,Sektion V,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Section V,Department of Clinical Sciences, Lund,Faculty of Medicine
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Emfietzoglou, Dimitris (author)
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- Lindén, Ola (author)
- Lund University,Lunds universitet,Bröstcancer-genetik,Sektion I,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Breastcancer-genetics,Section I,Department of Clinical Sciences, Lund,Faculty of Medicine
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Bousis, Christos (author)
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Fotopoulos, Andreas (author)
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Kostarelos, Kostas (author)
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Flux, Glenn D. (author)
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(creator_code:org_t)
- Mary Ann Liebert Inc, 2007
- 2007
- English.
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In: Cancer Biotherapy & Radiopharmaceuticals. - : Mary Ann Liebert Inc. - 1557-8852 .- 1084-9785. ; 22:3, s. 357-366
- Related links:
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http://dx.doi.org/10...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Aims: Many lymphoma patients have both macroscopic tumors and single-cell manifestations of their disease. Treatment efficacy could, therefore, depend on the radionuclide used. The aim of this study was to investigate dosimetry at a cellular level for three isotopes of radioiodine. Methods: Cells were assumed to be spherical with radii of 6.35, 7.7, and 9.05 mu m corresponding to the dimensions of the Raji cells. The radius of the nucleus was assumed to be 75% of the cellular radius. The electron energies were 18, 28, and 190 keV, corresponding to the mean electron energy per decay for I-125, I-123, and I-131, respectively. S-values for different activity distributions were simulated using Monte Carlo and dose-volume histograms as well as absorbed doses, and absorbed dose rates were calculated. Results: I-125 gives the highest absorbed dose (similar to 4-40 times that of I-131), whereas I-123 Will give the highest absorbed dose rate (similar to 100 times that of I-131). Under the given assumptions, the absorbed dose at this level is more dependent on the Size of the cells than on whether the radioimmunoconjugate is internalized. Conclusions: This enquiry showed that both I-123 and I-125 have greater potential than I-131 for the treatment of leukemic spread in patients With lymphoma.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Cancer och onkologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Cancer and Oncology (hsv//eng)
Keyword
- single cells
- dosimetry
- lymphoma
Publication and Content Type
- art (subject category)
- ref (subject category)
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