Pimentel-Nunes et al reporting the endoscopic grading of gastric intestinal metaplasia (EGGIM). The authors are from multiple institutions in Europe and the United States.
Exam: gastric endoscopy with narrow-band imaging
Parameters:
(1) GIM in lesser curvature of antrum
(2) GIM in greater curvature of antrum
(3) GIM at incisura
(4) GIM in lesser curvature of corpus
(5) GIM in greater curvature of corpus
|
Intestinal Metaplasia
|
Score
|
|
none
|
0
|
|
focal (<= 30%)
|
1
|
|
diffuse (> 30%)
|
2
|
subscore for antrum =
= (points for lesser curvature of antrum) + (points for greater curvature of antrum)
subscore for corpus =
= (points for lesser curvature of corpus) + (points for greater curvature of corpus)
total score =
= (subscore for antrum) + (score for incisura) + (subscore for corpus)
Interpretation:
• minimum subscore and score: 0
• maximum subscore for antrum: 4
• maximum subscore for corpus: 4
• maximum total score: 10
Performance:
• The area under the ROC curve for detection of extensive metaplasia is 0.98.
