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* Not routinely advised (no consensus: 71 % not recommended)
* '''~60 ml of gel''' (higher volumes compress perirectal tissues significantly)
* Reduce Reduces susceptibility artefacts related to luminal gas on DWI.
* Should not be used routinely: rectal wall distension may interfere with interpretation of the distance between the tumour and the mesorectal fascia, and high T2 signal of the gel may cause T2 shine through effects on DWI.
