MRI—scan of the pelvis for the initial staging, restaging or follow up of rectal cancer, if: (a) a high resolution T2 technique is used; and (b) the request for the scan identifies that the indication is for: (i) the initial staging of rectal cancer (including cancer of the rectosigmoid and anorectum); or (ii) the initial assessment of response to chemotherapy or chemoradiotherapy; or (iii) the assessment of possible recurrent tumour after complete response to neoadjuvant therapy, within an active surveillance program; or (iv) the assessment of recurrent disease prior to treatment planning (R) (Contrast) (Anaes.)