Organ Preservation in Rectal Cancer: Contact X-ray Brachytherapy vs Extending the Waiting Interval and Local Excision

With contact x-ray brachytherapy an intraluminal radiation boost up to 90 Gy is applied to the primary rectal tumour, with minimal collateral damage to the surrounding normal tissues due to minimal penetration of the 50 kVolt therapy.

Local excision will basically be performed by the TAMIS-procedure (transanal minimally invasive surgery).