39
User’s Manual
CellaVision
®
DM1200
Cell Marker
When the Cell Marker function is turned on, a green square marking the cell the
system has identified, appears in every cell image. The Cell Marker is used to split
cells and identify duplicate cells.
Splitting cells:
Occasionally the system fails to separate WBCs that are close to each other, and
more than one cell in an image will be outlined by the cell marker (green square).
These cells should be split so that each can be identified by the operator. With the
cursor over the image, use the right-click menu and select Split cells. A dialog
appears explaining the procedure. The appearance of the green square is not
changed for split cells. Instead a copy of the same image is created, and a red cross
will mark the cell which is to be identified.
Note! Cells created by splitting can always be removed, using the right-click menu.
Identify duplicate cells:
If the green square outlines only part of a cell, the system has only used this part
for cell identification. There is a risk that the system has identified the other part of
the cell as a completely different cell, thus the same cell can be counted more than
once (see 11 Troubleshooting).
Note! To make sure duplicate cells are not included in the differential count it is
recommended to screen all cell images for duplicate cells when a green square
only covers part of a cell. A duplicate cell should be removed from the differential.
Cell Marker
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