Using the policy editor

This agent policy editor is only available in stand-alone mode.

Settings per ‘use’

In order to correctly understand how policies are applied to specific displays, it is necessary to understand the concept of the use of a display.

The use of a display provides a practical way to control which calibration settings and QA tests should be applied to one or more displays, irrespective of the model of these displays. The use of a display can be set to one of the following values:

  • Reviewing

  • General radiology

  • Mammography

  • Breast Tomosynthesis

  • Non-clinical (No QA tests can be associated with this use)

  • Pathology

When a new display is added to the workstation, a default use is automatically assigned based on the model of the display. Non-Barco displays always have ‘non-clinical’ assigned as default. To modify the use of a display, open to the Components window (see Components).

The calibration settings and QA test settings are configured per use (these settings are not configured per individual connected display). As a consequence, when multiple displays are present with the same configured use, then the agent will attempt to calibrate them towards the same luminance target, and apply the same configured QA tests.

In the agent policy editor, one horizontal tab is shown for each available use. On each tab, the calibration settings and QA test settings can be configured. The settings tab for a specific use is only available when at least one display is connected for which that specific use is configured.

../../_images/agent_policy_editor.png

In stand-alone mode, the following tasks can be configured:

  • Calibration

  • DICOM Luminance response test

  • SteadyColor response test

  • sRGB Luminance response test

  • sRGB color space test

For each use, a Barco default configuration is applied

Note

It is mandatory to define calibration settings (except for the non-clinical use). QA tests are optional.

Schedule settings

Each task has a schedule setting, that determines the execution frequency for the task.

  • Daily: Every day

  • Weekly: Every Monday

  • Biweekly: Every 1st and 15th of the month

  • Monthly: Every first day of the month

  • Quarterly: Every first day of each quarter

  • Half yearly: Every first day of each semester

  • Yearly: Every 1st of January

Default policy

The default policy is based on ACR recommendations and our manufacturer’s recommendations.

Calibration

  • Use: Reviewing, Dentistry

    • Schedule: yearly

    • Method: default

    • Black point luminance: according to the display’s recommendation

    • White point luminance: according to the display’s recommendation

    • Gamut: display native

    • Luminance response function: DICOM-GSDF

    • SteadyColor: standard

  • Use: Radiology, Mammography, Breast Tomosynthesis

    • Schedule: half-yearly

    • Method: default

    • Black point luminance: according to the display’s recommendation

    • White point luminance: according to the display’s recommendation

    • Gamut: display native

    • Luminance response function: DICOM-GSDF

    • SteadyColor: standard

  • Use: Pathology

    • Schedule: half-yearly

    • Method: default

    • Black point luminance: according to the display’s recommendation

    • White point luminance: according to the display’s recommendation

    • Gamut: sRGB

    • Luminance response function: sRGB

    • SteadyColor: off

Luminance Response Test

  • Use: Reviewing, Radiology

    • Schedule: quarterly

    • Error tolerance: <15%

    • Sensor: internal

  • Use: Mammography, Breast Tomosynthesis

    • Schedule: quarterly

    • Error tolerance: <10%

    • Sensor: internal

sRGB Luminance Response Test

  • Use: Pathology

    • Schedule: Monthly

    • Error tolerance: <15%

    • Sensor: internal

sRGB Color Response Test

  • Use: Pathology

    • Schedule: Half-yearly

    • Average dE2000 <= 2

    • Maximum dE2000 <= 5

    • Sensor: internal

SteadyColor response test

  • Use: Reviewing, Radiology, Mammography, Breast Tomosynthesis, Pathology

    • Schedule: Half-yearly

    • Error tolerance: <15%

By default, QAWeb Enterprise uses a room ambient light of 35 cd/m².