Methods for Ranking Cellular Images
The methods described in this invention are used to analyze images of circulating tumor cells (CTC). Images are acquired from a number of platforms, including multiparameter flow cytometry, the CellSporter fluorescent microscopy imaging system and CellTracks Analyzer. These images are then ranked based on various properties and are presented to the user in order of most likely to least likely positive CTC events. The ranking method is useful to diagnose, monitor, and screen disease based on circulating rare cells, such as malignancy as determined by CTC.
1 . A method for ranking a cell image in a fluid sample comprising:
a. acquiring an image from a platform;
b. ranking said image properties from a group consisting of morphologic analysis, epitopical analysis and combinations thereof;
c. presenting images in order of most likely to least likely positive circulating tumor cell; and
d. selecting said images for analysis wherein said analysis is from a group consisting of diagnosing disease, monitoring disease, screening disease, and combinations thereof.
2 . The method of claim 1 wherein said platform is multiparameter flow cytometry, CellSpoter fluorescent microscopy, or CellTracks Analyzer imaging.
3 . The method of claim 1 wherein said morphologic analysis is from a group consisting of mensuration, shape analysis, size analysis, cytoplasm/nucleus overlap, cytoplasm/nucleus relative intensities, and combinations thereof.
4 . The method of claim 1 wherein said epitopcial analysis is identifying a PE positive event, a DAPI positive event, and an APC negative event.
5 . The method of claim 4 wherein background noise is removed by kuan filtering
6 . The method of claim 1 wherein said cell image is from a group consisting of a circulating tumor cell, an epithelial cell, an endothelial cell, a bacterial cell, and a virally infected cell.
7 . The method of claim 6 wherein said cell image is a circulating tumor cell.
8 . The method of claim 7 wherein said epitopical analysis is identifying cytokeratin-PE positive event, DAPI-stained nucleus positive event, and CD-45 APC negative event.
9 . The method of claim 8 wherein said order is by intensity scoring for said cytokeratin-PE positive event and said DAPI-stained nucleus positive event.
10 . The method of claim 9 wherein said epitopical analysis is further determined by fractional overlap of said cytokeratin-PE positive event and said DAPI-stained nucleus positive event.
11 . The method of claim 10 wherein CD-45 APC positive events are further scored by an APC to PE intensity ratio wherein a higher said intensity ration indicates a lower circulating tumor cell score.