Quality Assurance

Today in most of the countries performance of medical displays is regulated and controlled by specific standards, imposed by legal bodies. PerfectLum Suite is a medical monitor quality control tool, developed to perform quality assurance operations on any display, used for diagnostic and reviewing of medical images.

The Quality Assurance section of PerfectLum Suite makes sure medical displays meet the requirements of key standards and remain within them over time. PerfectLum Suite medical display QA software performs acceptance and constancy tests to such standards as AAPM TG18, DIN 6868-57, new DIN 6868-157 Norm-Entwurf, JESRA X-0093, and IEC 62563-1.

PerfectLum Suite medical monitor QA tool also performs conformance checks to verify calibration as well as white level of the display.  With PerfectLum Suite conformance features medical imaging professionals can be confident in the performance of their displays, and thus the accuracy of their diagnoses.

The functionality of the medical monitor Quality Assurance section is as follows:

Acceptance test

An acceptance test is to be performed to verify if a display meets the standards necessary for its usage. Supported regulations are American AAPM TG18, German DIN 6868-57 and the new DIN 6868-157 Norm-Entwurf, Japanese JESRA X-0093, European IEC 62563-1, and their associated display categories.

Constancy test

As soon as the acceptance test is passed, corresponding constancy tests are scheduled automatically. The medical display QA software calculates the dates when constancy tests are due and reminds the user to perform them, even if PerfectLum is not running on the date.

The acceptance and constancy tests in PerfectLum Suite medical display QA tool consist of measurement steps, which require a measurement device, and visual steps, based on test patterns like TG18, Briggs, SMPTE, AAPM and user defined ones. The steps are designed to make test procedures as easy and accurate as possible. No need to spend hours interpreting the regulations – PerfectLum Suite has already done that!

Calibration conformance

Verifies the conformance of the display according to the preferences you have selected as calibration targets.

Starting calibration conformance in PerfectLum medical display QA tool.

Starting calibration conformance in PerfectLum medical display QA tool.

Calibration conformance report in PerfectLum Suite medical monitor QA tool.

Calibration conformance report in PerfectLum Suite medical monitor QA tool.

White level check

Verifies luminance level of the display, checking whether it remains within the desired range.

Uniformity check

Checks luminance deviation across the screen. It is mandatory for this deviation to remain within a certain range. For example, a display with a non-uniformity of more than 15% can no longer be used in Germany as it would not meet the German DIN 6868-57 standard.

History and Reports

For every operation (e.g. calibration, acceptance test, quality assurance,etc.) a detailed report with graphs is created. The report can be accessed, downloaded as a .pdf file  and printed at any time. Reports are saved in history database to provide proof of maintenance for the display. Automatic backup is performed for history database to ensure not a letter is lost.

Task Scheduling

PerfectLum Suite medical monitor QA tool features a Scheduler for easier planning of calibration and quality assurance operations. A calibration or QA task can be scheduled to be performed only once or on a regular basis. On the due date, a reminder will pop up and ask the user if the task is to be performed or delayed. If the task is delayed, the reminder will appear again at the specified time.

Read more about PerfectLum DICOM calibration features and Remote Control system for medical displays.