Effect of Edge-Preserving Adaptive Image Filter on Low-Contrast Detectability in CT Systems: Application of ROC Analysis
Figure 4
The ROC curves of five observers for images with/without the use of QDS for
the target with a diameter of 4 mm. The low-contrast resolution for the images
obtained at 140 mA without QDS was statistically equivalent to that of the
images obtained at 90 mA with QDS.
