The authors of this study found that
CT was better tolerated and more sensitive but less specific than fluoroscopy for detecting occult anastomotic leak.Radiological detection of post-oesophagectomy anastomotic leak a comparison between multidetector CT and fluoroscopy
by: S Upponi, A Ganeshan, H Dcosta, M Betts, N Maynard, H Bungay, A Slater
British Journal of Radiology, Vol. 81, No. 967. (July 2008), pp. 545-548.