Correlation of diagnostic nasal endoscopy and CEMRI
(n=60)
This was done in 60 patients because all three diagnostic tests i.e.
endoscopy, biopsy and imaging were done in them. As shown in Table 2,
out of a total of 60 patients, 40 (66.7%) had abnormal endoscopic
findings while 51 (85%) patients showed positive CEMRI findings. Out of
20 patients having normal endoscopy, 13 patients had abnormal CEMRI. But
two patients who were CEMRI negative had endoscopic features for CAM.
Seven patients were both endoscopy and CEMRI negative for CAM indicating
no disease. Considering imaging as a superior diagnostic tool for the
diagnosis of CAM, the various parameters for endoscopy were calculated.
The sensitivity of DNE was 74.50%, specificity was 77.77%, positive
predictive value was 95% and negative predictive value was 35%.
Diagnostic accuracy came out to be 75%. Most of the endoscopy positive
patients of CAM were CEMRI positive. Agreement between DNE and CEMRI in
diagnosis of CAM was good with a kappa coefficient of 0.370.