RGB measurements as a novel objective diagnostic test for otitis media with effusion.
CONCLUSIONS
This study revealed a significant correlation between red-green-blue (RGB) values of tympanic membrane (TM) images and the presence of effusion in the middle ear. These results confirm that endoscopic RGB evaluation is a rapid and non-invasive procedure yielding objective results.


OBJECTIVE
To investigate, in cases of otitis media with effusion (OME), the correlation of the TM color changes with the presence and viscosity of the effusion in the middle ear.


METHODS
Endoscopic images of the TMs of 52 patients (group 1) and 52 healthy controls (group 2) were taken during their otologic examinations. RGB values of particular points were measured on the TM images of both groups. Additionally, in group 1 the viscosity of each effusion taken by paracentesis during surgery was also measured intraoperatively with a viscometer. Patients with viscosity values lower and higher than 450 cP (centipoise) were subdivided into groups 1a and 1b, respectively.


RESULTS
Study and control groups were comparable regarding the number of patients and their mean ages (p > 0.05). Statistically significant differences were found in RGB values of the TM between groups 1 and 2, but not between groups 1a and 1b.
Department of Otorhinolaryngology and Head and Neck Surgery, 1Medical Faculty, Bezmialem Vakif University , Istanbul.
Selahattin
S
Tugrul
Nazan
N
Degirmenci
Sabri Baki
SB
Eren
Remzi
R
Dogan
Aysenur
A
Meric Hafiz
Orhan
O
Ozturan
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D003116:Color; D004724:Endoscopy / Q000379:methods*; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D007223:Infant; D008297:Male; D010034:Otitis Media with Effusion / Q000175:diagnosis*; D010781:Photography / Q000379:methods*; D012680:Sensitivity and Specificity; D014432:Tympanic Membrane / Q000473:pathology*; D014783:Viscosity
Viscosity; endoscopy; red-green-blue; tympanic membrane