Conflict of interest
RS, JP
NJ is involved in research with the University of Auckland and the University of Adelaide, which are funded by Guerbet; NJ has undertaken paid consultancies for Guerbet; DM and PH are involved with a University of Auckland study on Lipiodol safety through an unrestricted independent grant to the Liggins institute from Guerbet; PH has received fees for speaking in two webinars sponsored by Guerbet; RGS and JMP have been paid for presenting and being advisory board members by Guerbet; RS, JP, and NJ undertake Lipiodol HSGs as a part of their profession.The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.