Vidar Film Digitizer

Image Quality

The ability to provide a high-quality image is a critical factor in the selection of a digitizer for use with FFDM. This holds true despite the lack of specific FDA or Mammography Quality Standards Act (MQSA) guidelines for digitizers used to scan images from comparison with new digital exams. The MQSA recommends that "phantom and clinical images produced by such copying or digitization pass all applicable quality control tests and be of such quality that if they were submitted, they would pass the facility's accreditation body's phantom and clinical image review process."
 

Digitizers from VIDAR

The Advantage line of digitizers from VIDAR Systems Corporation excels both in quality control and clinical review. The Advantage products provide ADC (Automatic Digitizer Calibration), a closed loop quality assurance (QA) systems that calibrates the digitizer automatically before every film digitized. ADC, combined with high-end electronics sucha as HD-CCD imaging and LED lighting systems, allows the digitizer to provide excellent spatial and contrast resolution with virtually no variation between digitized films, ensuring superb grayscale reproduction with every scan.

Image quality of VIDAR digitizer in a clinical setting is supported by a comparative study conducted at the johns Hopkins Medical Institutions and published in the "Journal of Digital Imaging" Eight radiologist interpreted 120 mammography examinations, half as original films and half as digitized images on a workstations. Results showed no significant differences between the interpretations of conventional film mammography examinations and softcopy exams produced by a mammography film digitizer form VIDAR.