Efficiency of Grain Production and Latent Image Fading in F-18 Micro-autoradiography.
- 1 January 1992
- journal article
- Published by Tohoku University Medical Press in The Tohoku Journal of Experimental Medicine
- Vol. 167 (3) , 181-184
- https://doi.org/10.1620/tjem.167.181
Abstract
In 18F micro-autoradiography using a frozen section method, the grain production was measured relative to the exposure time and radioactivity. The grain production increased until 6-hr exposure, but 7-hr or longer exposure induced a characteristic of latent image fading. However, the ratios of the efficiency of grain production between two different 18F-radioactivities (11.9 and 2.3 mBq/100 microns2) were constant over experimental exposure times, thus indicating that quantitative analysis by grain counting is preserved.Keywords
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