Fig. 2From: Systematic review of three-dimensional printing for simulation training of interventional radiology traineesSummary of Quality Assessment of Diagnostic Accuracy Studies - 2 (QUADAS-2) ratings. The index test was the evaluation of the 3D-printed simulator. Applicability refers to appropriateness of the simulation to measure trainee ability. The reference standard was a comparison to evaluate the 3D-printed simulation. Flow and timing refers to equal treatment among participants and appropriate study follow-up, if applicable. There was a low to moderate degree of bias established due to the variability between study designs in the reviewed articlesBack to article page