Note
The SERVICE TOOL will display a screen of “Image Optimization” parameters with default parameter values selected from the Modality Preferences Database in the DRE.
Note
• The parameter default values on the screen apply to the MODALITY identified in the “SCU”
window at the top of the screen.
• The information in the “SCU” window includes, in order: IP Address and AE Title of the SCU sender, and AE Title of the destination.
• You can open the “SCU” window to display a dropdown list of all SCUs connected to the IMAGER.
• You must do “Image Optimization” and “Other Options” for each SCU in the dropdown list.
2. Check each default parameter on the “Image Optimization” screen.
3. Do the following to determine whether a change to a default parameter is necessary:
a. Check the DICOM log for details relating to the print job sent down from the MODALITY. The parameter values on the “Image Optimization” screen should match any values sent from the MODALITY.
b. See Table 2-1 for descriptions of the parameters and recommended settings.
c. Refer to paragraph 2-12 at the end of this section for recommended settings, by type of
MODALITY, for the following parameters: TFT Set Name, Contrast, Smoothing Type, and Image Dmax.
d. Check the quality of printed images sent from the MODALITY.
Table 2-1. Selecting the ’Image Optimization” Parameters
Parameter Description Recommended Setting
Negotiate
Pre-sentation PLUT Some SCUs can apply standard PLUT parame-ters that provide improved tone scaling of imag-es. The SCP must agree to negotiate this PLUT.
YES, for those SCUs with PLUT capability.
Negotiate Color
Print Determines if the SCP will negotiate the Color
Print Service if requested by the SCU. NO TFT Set Name Name of a particular set of 15 TFT curves. Each
curve in the set is identified by a corresponding user--selectable contrast number, 1-15.
See paragraph 2-12.
For Always Apply..., select NO.
Contrast The number selected determines which table
from the set of 15 will be used. See paragraph 2-12. You may need to run contrast test prints at various settings to select the cor-rect contrast value.
For “Always Apply...”, select NO.
Smoothing Type A smoothing value (0-15) specifies a level of smoothness/sharpness in transitions between density levels on the image.
See paragraph 2-12.
For Always Apply...”, select NO.
Image Dmin Minimum density of the image. 0.0
For “Always Apply..., select NO.
Image Dmax Maximum density of the image. Cannot be higher
than border density. See paragraph 2-12.
For “Always Apply...,” select NO.
Image Polarity The polarity of the printed image with respect to the image from the SCU. NORMAL (default) specifies same polarity, REVERSE the opposite.
POSITIVE for most SCUs. NEG-ATIVE for Nuclear Medicine.
For “Always Apply..., select NO.
4. To change a parameter value, if necessary:
• Click [Modify].
• Select the desired parameter from the dropdown menu for the parameter.
• Click [Save].
Note
For some parameters you have the option to “Always Apply...”. If you select YES, the parameter on the screen will override the parameter that the SCU sends. If you select NO, the SCU parameter will apply. Normally you should allow the SCU to override.
6. Check each parameter.
7. See Table 2--2 for descriptions of the “Other Options”. The default values shown on the screen have been selected from the Modality Preferences Database in the DRE.
8. Change parameters only if necessary.
9. To change a parameter:
a. Select [Modify].
b. Select the new parameter value from the dropdown menu for that parameter.
c. Click [Save].
Table 2-2. Selecting “Other Options” Parameters
Parameter Description Recommended Setting
Send N_Event
Re-ports The IMAGER can automatically send changes in its status to the SCU when the changes occur.
YES, unless the user does not want the reports sent. (Such re-ports can cause problems in some SCUs.)
For “Always Apply...”, select NO.
Send Warnings The IMAGER can also send non--fatal warn-ing messages to the SCU when problems oc-cur (film jams, etc.)
YES, unless the user does not want the messages sent.
Print Priority The order of printing from the SCUs can be prioritized by selecting LOW, NORMAL, or STAT (High) priority for particular SCUs,
Check with the user for the print priority for this SCU.
For “Always Apply...”, select NO.
2mm Border Selects 2mm border for non--requested
image size jobs. The default is NO.
Film Clip Border Enbles use of clipping border of 22.1 mm for jobs that have more than one image with a requested image size that does not resize images.
The default is NO.
Film Base BLUE FILM or CLEAR FILM If the SCU does not send film base type:
• Select the correct type.
• For “Always Apply...”, select YES.
Film Size 3 sizes are available: 14 x 17 in., 11 x 14 in.,
and 14 x 14 in. Select the correct size.
For “Always Apply...”, select NO.
Include print date in
annotation If the user wants the date of “image
acquisi-tion” to be annotated on the print, select YES. Check with user.
Include print time in
annotation If the user wants the time of printing to be
an-notated on the print, select YES. Check with user.
Include page
num-ber in annotation If the user wants the page number sequence in a multi--page study to be annotated on the prints, select YES.
Check with user.
Include hospital
name in annotation If the user wants the hospital name to be an-notated on the print, select YES. This name will be the same as that entered on the Ser-vice Tracking screen.
Check with user.
Include modality ID
in annotation If the user wants the modality ID to be anno-tated on the print, select YES. See the item below.
Check with user.
Modality ID The Modality ID indicated will be printed in the Annotation Text Box on the print. The ID includes the first 8 characters of the SCP node Name plus the 2 last octets of the SCU IP Address.
Check with user.
Annotation Override If you select YES, the values entered for all the annotation parameters will override any values sent down from the SCU.
Select NO.
Density Patch Use of the Density Patch is selectable only
for 14 x 17 in. film. Default is YES, but check with the user.
Image Resizing The 2 options are MINIFY/SCALE or CROP.
• To “minify” is to decrease the image by removing pixel data via a software algorithm if the raw image is too large for the film. When this occurs, the “minify”
icon is printed on the film. See Figure 2-2.
• To “scale” is to de--magnify, or scale down, the image if the requested image size is too large for the film. When this occurs,the “scale” icon is printed on the film. See Figure 2-2.
• To “crop” is to remove the edges of the image so it fits on the film. The uncropped part of the image will remain true size.
When this occurs, the “crop” icon is printed on the film. See Figure 2--2.
Check with the user. If MINIFY/
SCALE is selected, the IMAGER will determine which type of de-magnification is to be used, either MINIFY or SCALE.
For Always Apply...”, select NO.
Some SCUs have the ability to in-dicate type of resizing and should be allowed to override the default value set in the IMAGER.
Text Box Location This parameter applies only to “1-up” images on 14 x 17 in. film, when crop has been se-lected for image resizing. Text Box Location indicates the location on the page for the an-notation box. The box can be cut and pasted on the cropped image at the TOP or BOT-TOM of the film.
Check with user for desired loca-tion. Select NONE if cropping is not used.
Source ID This is the source name used for logging DI-COM communications from this SCU. It also identifies the SCU in the SERVICE TOOL print statistics.
Select a short name for the SCU.
Minify Icon Scale Icon Crop Icon
Figure 2-2. Cropping Icons