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- W2065788340 abstract "To compare the distribution and uptake of the hypoxia tracer (64)Cu-diacetyl-bis(N(4)-methylthiosemicarbazone) ((64)Cu-ATSM) PET/CT, FDG PET/CT and dynamic contrast enhanced perfusion CT (DCE-pCT) in spontaneous canine tumors. In addition (64)Cu-ATSM distribution over time was evaluated.Nine spontaneous cancer-bearing dogs were prospectively enrolled. FDG (1h pi.) and (64)Cu-ATSM (3 and 24h pi.) PET/CT were performed over three consecutive days. DCE-pCT was performed on day 2. Tumor uptake of FDG and (64)Cu-ATSM was assessed semi-quantitatively and the distribution of FDG, (64)Cu-ATSM and CT perfusion parameters correlated.(64)Cu-ATSM distribution on scans performed 24h apart displayed moderate to strong correlation; however, temporal changes were observed. The spatial distribution pattern of (64)Cu-ATSM between scans was moderately to strongly positively correlated to FDG, whereas the correlation of CT perfusion parameters to FDG and to (64)Cu-ATSM yielded more varying results.(64)Cu-ATSM uptake was positively correlated to FDG. (64)Cu-ATSM was found to be relatively stable between PET scans performed at different time points, important temporal changes were however observed in hypo-perfused regions. These findings potentially indicate that prolonged uptake periods for (64)Cu-ATSM imaging may be needed. Although a moderate to strong correlation between (64)Cu-ATSM and FDG PET/CT is observed, the two tracers provide different biological information with an overlapping spatial distribution." @default.
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- W2065788340 date "2012-03-01" @default.
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- W2065788340 title "Multimodality functional imaging of spontaneous canine tumors using 64Cu-ATSM and 18FDG PET/CT and dynamic contrast enhanced perfusion CT" @default.
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- W2065788340 doi "https://doi.org/10.1016/j.radonc.2011.10.021" @default.
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