59 Evolutions in rectal cancer MRI staging and risk stratification in the Netherlands 4 Table 2 Type and completeness of reporting Total N = 712 Part 1 Q4 2011–Q1 2014 N = 191 Part 2 Q1 2014– Q1 2016 N = 334 Part 3 Q2 2016– Q2 2018 N = 187 p value Type of reporting Report Type Free text 77.8% (554) 97.9% (187) 67.1% (224) 76.5% (143) <0.001 Semi-structured 3.2% (23) 0.5% (1) 3.3% (11) 5.9% (11) Structured (template) 19.0% (135) 1.6% (3) 29.6% (99) 17.6% (33) Items included in report 1 Morphology Lesion type reported (polyp, semi-annular, annular) 66.6% (474) 51.8% (99) 67.4% (225) 80.2% (150) <0.001 Not reported 33.4% (238) 48.2% (92) 32.6% (109) 19.8% (37) Tumour type reported (solid, mucinous) 6.6% (47) 2.1% (4) 8.4% (28) 8.0% (15) 0.013 Not reported 93.4% (665) 97.9% (187) 91.6% (306) 92.0% (172) 2 Tumour circumference Specified as from … to … o’clock 12.4% (88) 5.8% (11) 15.6% (52) 13.4% (25) <0.001 Only prose description (ventral/dorsal/lateral) 12.2% (87) 19.9% (38) 10.8% (36) 7.0% (13) Not reported 75.4% (537) 74.3% (142) 73.7% (246) 79.7% (149) 3 Height Reported as measurement from ARJ/anal verge 92.6% (659) 88.5% (169) 92.8% (310) 96.3% (180) 0.018 Only prose description (low/mid/upper) 5.6% (40) 7.3% (14) 6.0% (20) 3.2% (6) Not reported 1.8% (13) 4.2% (8) 1.2% (4) 0.5% (1) 4 Length Reported in cm/mm 90.3% (643) 87.4% (167) 91.0% (304) 92.0% (172) 0.274 Not reported 9.7% (69) 12.6% (24) 9.0% (30) 8.0% (15) 5 cT-stage Reported incl. substaging (incl. cT3abcd, cT4ab) 22.8% (162) 2.1% (4) 19.8% (66) 49.2% (92) <0.001 Reported without substaging (cT1234) 65.6% (467) 70.2% (134) 73.4% (245) 47.1% (88) Not explicitly mentioned but can be derived from prose description* 10.3% (73) 25.1% (48) 5.7% (19) 3.2% (6) Not reported 1.4% (10) 2.6% (5) 1.2% (4) 0.5% (1)
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