Observer Performance Studies
Clinical Assessment of Dry Laser-Processed Film vs. Traditional Wet-Processed Film
The goal of this study was to compare image quality and diagnostic performance (using ROC techniques) for laser imaging film from 2 systems : a traditional wet laser system that uses chemical processing and a new dry system (DryView Laser Imaging System) from Imation Corp. (formerly 3M Medical Imaging) that is wet-chemistry free..
3 independent studies were performed : CT, MRI, US Each study used the same general methods.
Images were printed to film once using traditional wet processing and once using the new DryView system from Imation (formerly 3M Medical Imaging Systems). For more information on the DryView process, Link to the Imation webpage Separate studies were done for CT, MRI and US All cases were viewed on a standard view-box using a randomized presentation order.
10 radiologists participated in each study Read each image twice (once on traditional wetfilm, once on the DryView film). Reported diagnostic decision & gave confidence using a 6-level scale Subjectively rated the quality of films as poor, fair, good or excellent
ROC Performance Analysis