Hologic R2 DM, User Manual

Page: 30 / 106

Part 2: Description
Results Output Options
The R2 processing unit can send results with any of the following formats to a PACS
or review workstation.
•
DigitalNow
is a traditional DICOM Digital Mammography X-Ray For
Presentation image where the image is comprised of Natural Pixel Values, the
values actually created by the film scanner. (DigitalNow images do not include
CAD results.) DigitalNow results can be created as 50- or 100-micron image files.
The file sizes can vary depend upon the film size and resolution.
Film Size 50µ Image 100µ Image
18 × 24 cm 35 MB 8.6 MB
24 × 30 cm 50 MB 14.4 MB
•
R2 Auto
is the format used to display the four screening views with CAD results on
a CheckMate Ultra display unit or Mammolux motorized viewer. With this
format, the CAD results appear over a montage of low-resolution images.
Normally, the four screening views appear, although it is also possible to produce
CAD results from films that show Equivalent Views.
•
Mammography CAD SC
is a Secondary Capture image that provides the same low-
resolution images and CAD results as appear in the R2 Auto format. This format is
useful for PACS that do not support CAD SR.
•
Postscript
files, suitable for printing on a postscript printer, provide the same low-
resolution images and CAD results as appear in the R2 Auto format. For an
example, see the
CAD Results Report on page 44 .
•
Mammography CAD SR 8.x
results are derived from the latest version of the
ImageChecker algorithm. This is the DICOM standard format for CAD results.
Mammography CAD SR objects are generally useful only when viewed with the
images on an advanced diagnostic review workstation.
•
Mammography CAD SR 5.x
provides backward compatibility with previous
releases of ImageChecker 5.x products. The 5.x format provides RightOn Calc and
Mass marks but not EmphaSize or PeerView.
22 R2 DM User Manual – PN MAN-01044 Rev 001