text: Eleven of these studies report data for MRI (349/586 patients with PDAC) [10–20], 15 for CT/ MDCT (815/1338 with PDAC) [14,17,18,20–31] 10 report on PET/CT (567/829 with PDAC) [11,14,29,32–38], and 29 report data on ultrasound (2574/3732 patients with PDAC).