Fig. 4From: Comparison of image quality of two versions of deep-learning image reconstruction algorithm on a rapid kV-switching CT: a phantom studyTask-based transfer function at 50% (TTF50) as function of the energy levels for three levels of deep learning spectral reconstruction (DLSR) versions (DLSR V1 and DLSR V2). a Mild level. b Standard level. c Strong levelBack to article page