Statistical analyses
Analyses were performed mainly as descriptive statistics and were summarised depending on the nature of the analysed variables (see Supplemental file The analysis of the primary objective was performed in the full analysis set (FAS). The Prescott’s test was used to assess the difference between the two tracers in terms of detection. The per-patient detection rate was computed for each reader independently and the intra-reader variability and inter-reader variability were evaluated by the Cohen’s kappa coefficient and the Fleiss’ kappa coefficient, respectively, on the FAS (without any imputation). 