New intravesical contrast medium for CT: preliminary studies with arachis (peanut) oil

Bladder cancer staging

“…The technique has evolved since the mid 1970s. Initially, some authors advocated bladder catheterization with the introduction of negative and positive contrast agents [22,23]. However, the introduction of intraluminal contrast medium did not improve the detection of tumour spread within the bladder wall or into the perivesical tissue.…”