Aperio GT 450 IT Manager and Lab Administrator Guide, Revision E © Leica Biosystems Imaging, Inc. 2022
28
Chapter 3: Configuring the Aperio GT 450 Scanner
Image File Name Format
By default, the file name of the scanned image begins with the image’s numeric ImageID followed by an underscore and a
six-digit code ending with a file extension indicating the format of the file.
You can enter your own text at the beginning of this field and then use any of these keywords in any order. The keywords
must be in all capitals and surrounded by { } symbols. We suggest separating the keywords with underscores for readability.
`
BARCODEID - Barcode value identifier (see the next section)
`
RACK - Rack number
`
SLIDE - Slide position in the rack
`
IMAGEID - Unique identifier for the image
For example, if you want to identify all of the scanned images from this scanner as coming from ScannerA, and also want to
indicate what rack and what position in the rack the slide came from, you might create an image file name format like this:
ScannerA_{RACK}_{SLIDE}
The file name will begin with the text “ScannerA,” followed by the rack number and the slide position in the rack. Following
this will be an underscore, a six-digit code, and the file extension. For example:
ScannerA_5_2_210164.SVS
Barcode Management
The barcode is a text string saved with the scanned image file, and can be displayed in your eSlide management system.
Depending on your institution’s procedures, you may have more than one barcode on the glass slide label. In this case, you
will want to identify which barcode will be associated with the scanned image and displayed in the eSlide management
system.
To do this, enter a search string in regular expression format in the
Barcode Value Identifier
field.
(A regular expression, regex or regexp, is a sequence of characters that define a search pattern. For example, \d{6}
specifies that a barcode with six digits in a row will be used. If you are not familiar with regular expressions, contact Leica
Biosystems Technical Support for assistance.)
Some institutions embed control (non-printable) characters in their barcodes. If you want to filter out or replace these
characters, enter the characters you want to modify in regular expression format in the
Barcode Value Modifier
field. For
example, [\x00-\x1f\x7f] specifies that all non-printable characters will be modified.
If there are non-printable characters you want to replace that are matched by the
Barcode Value Modifier
field, specify
that value in the
Barcode Value Substitution Format
field. For example, a value of “?” combined with a
Barcode Value
Modifier
field value of [\x00-\x1f\x7f] replaces all non-printable characters with a question mark “?.” Leave this value empty
to remove characters matched by characters in the
Barcode Value Modifier
field.
If your procedures require each scanned image be saved with a barcode, slide the
Require Barcode ID
slider button to the
right. When this is enabled, the scanner will skip a slide if the slide does not have a barcode or if the scanner cannot read
the barcode.
The features discussed in this section allow for more advanced modifications to the barcode. If you require additional
control over the barcode string returned by the Aperio GT 450, contact Leica Biosystems Technical Services.
