Table 2. Imaging‐based response to neoadjuvant chemoradiotherapy and salvage systemic chemotherapy.
a
Response to chemotherapy is assessed by using imaging data after completion of chemoradiotherapy as baseline and only in patients who did not experience distant progression while on treatment.
Abbreviations: (C)RT, chemoradiotherapy; CRM, circumferential resection margin; CT, chemotherapy; EMVI, extramural venous invasion; MRF, mesorectal fascia; mrTRG, magnetic resonance imaging tumor regression grade; neg, negative; pos, positive;