Jia et al reported the CT Enterography score for evaluating the severity of ulcerative colitis. The authors are from the First Affiliated Hospital at Sun Yat-Sen University in Guangdong, China.
Examination: CT scan
Parameters:
(1) extended range of ulcerative colitis (from the Montreal classification)
(2) bowel wall thickening in mm
(3) mural stratification
(4) mural hyperenhancement
(5) mesenteric hyperemia
(6) perirectal stranding
(7) lymph node enlargement
(8) mucosal bubbles
(9) luminal narrowing
(10) loss of haustration
(11) intestinal pseudopolyp
Parameter
Finding
Points
extended range
normal
0
E1 (proctitis with limited lesions in rectosigmoid)
1
E2 (left-sided colitis below the splenic flexure)
2
E3 (extensive colitis above the splenic flexure)
3
bowel wall thickenig
<= 3 mm
0
4 to 6
1
7 to 9
2
>= 10
3
mural stratification
absent
0
present
1
mural hyperenhancement
absent
0
present
1
mesenteric hyperemia
absent
0
present
1
perirectal stranding
absent
0
present
1
lymph node enlargement
absent
0
present
1
mucosal bubbles
absent
0
present
1
luminal narrowing
absent
0
present
1
loss of haustration
absent
0
present
1
intestinal pseudopolyp
absent
0
present
1
total score =
= SUM(points for all 11 parameters)
Interpretation:
• minimum score: 0
• maximum score: 15
• The cutoff for predicting moderate and severe ulcerative colitis is 9.5.
Performance:
• The area under the ROC curve is 0.85.
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