Fig 1. Visualization of iohexol 240 and gadodiamide using fluoroscopy. 5 mL of iohexol 240 (Omnipaque; left) and gadodiamide (Omniscan; right) were drawn into a 5-mL syringe and a snapshot image was obtained with the use of a portable C-arm (GE 9600) at 0.6 mA and 46 Kv.