Department of Gastroenterology and Hepatology,Austin Health,Heidelberg 3084,Victoria,Australia;
Department of Radiation Oncology,Austin Health,Heidelberg 3084,Victoria,Australia;
School of Cancer Medicine,La Trobe University,Melbourne 3086,Victoria,Australia;
Medicine,Dentistry and Health Sciences,University of Melbourne,Parkville 3010,Victoria,Australia;
Genesis Care,East Melbourne 3002,Victoria,Australia;
Image-guided radiotherapy; Lipiodol; Gastroscopy; Gastric cancer; Oesophageal cancer; Fiducial;