Innovative German-made X-Ray Quality Assurance Solutions, X-Ray Quality Control and Radiation Protection Products


Automatic Image Quality Scoring Software for CBCT applications

Developed over a period of 2 years in a project involving major dental manufacturers, and released by QUART already in 2007, the programme routines of DVTtec are now widely used in other CBCT QA softwares - based on our company's innovative algorithms.

The QUART DVTtec software is designed to be used for acceptance tests in DVT/CBCT according DIN 6868-161. It is available as single or multi-user on-premise license.

The DVTap associated QA software automatically evaluates all parameters which are essential for the assessment of imaging quality of CBCT equipment according DIN 6868-161. It was specifically designed for technical acceptance or commissioning tests.

Despite its complexity, the software is easy to use. It provides a walkthrough function and assists users to carry out the QA test.

CTtec stores the result of each single test in its internal data bank. In addition, a protocol print-out function is provided for matters of documentation (hardcopy) and later reference.

Technical specifications

The software evaluates the following paramaters:
  • Nyquist Frequency (NF)
  • Contrast
  • Noise
  • Contrast-to-Noise Ratio (CNR)
  • Homogeneity / Image Uniformity
  • Modulation Transfer Function (MTF) at 10 % and 50 %
  • Artefacts, Image Flaws
  • Patient/Phantom Positioning Accuracy
  • Geometric Accuracy
  • Automatic System Indicator / Acceptance Indicator (as per DIN 6868-161)

EFOMP working group, Quality control in cone-beam computed tomography (CBCT) EFOMP-ESTRO-IAEA protocol (summary report), Physica Medica, Volume 39, July 2017, Pages 67-72.