Fig. 3
From: Low-dose whole-spine imaging using slot-scan digital radiography: a phantom study
Visual analog scale (VAS) used for visual assessment. Scores were given by moving the scale from good to bad (continuous confidence method). Five physicians (four orthopedic surgeons and one radiologist) oversaw the evaluation. The purpose of the test was fully explained prior to the evaluation, which was conducted in the same environment, under the same conditions (time, room light, monitors)