Automatic cell identification and enrichment in lung cancer. III. Light scatter and two fluorescence parameters.

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Abstract
Two fluorescence parameters and size are used in a flow through system to enrich sputum specimens for cancer cells. Human cells in sputum which are stained with acridine orange show a characteristic distribution of red and green fluorescence from which cancer cells can be localized. The peak enrichment is obtained by selectively sorting cells with the largest values of red and green fluorescence. Cancer cells located in other distribution regions having smaller fluorescence intensities show progressively diminished nuclear and cytoplasmic tinctorial features by Papanicolaou stain, consistent with the decreased intensity of red and green fluorescence.

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