Endoscopy and Otomicroscopy in the Estimation of Middle Ear Structures

Abstract

In order to study the variation within and between endoscopy and otomicroscopy a Gage repeatability and reproducibility design was created, with which the middle ears were studied of eight cadaver temporal bone blocks through the ear canal three times in random order using both methods. A Zeiss OPMT-1 operating microscope and Olympus endoscopes were used. The data were analysed in accordance with the analysis of variance principle, where the total variation was divided into different components. The anatomical areas were counted and registered via quadrants. There was a distinct difference between the results of the two methods in favour of the endoscopes. Furthermore, the variation between the methods and between the trials was analogous.

Endoscopic ventilation tube placement in the pediatric age

“…Oto‐endoscopy is gradually gaining recognition in otology, not only as a diagnostic procedure but also as surgical treatment. Recently, several authors described advantages of endoscopic approach over the operating microscope in ear surgery . Endoscopic VT placement was started at our ENT Pediatric Department in 2008 by the first author, gradually followed by other colleagues who shifted from microscope to endoscope.…”

Middle Ear Imaging via the Eustachian Tube with a Superfine Fiberoptic Videomicroendoscope

“…According to our earlier work the repeatability and reproducibility properties of endoscopic visualization are high and the variation due to the endoscopist is low [10]. That is why it is evident that repeated endoscopies are not 34 ORL 1998;60:30-34 Karhuketo/Puhakka needed to adequately visualize the anatomical structures in the middle ear.…”

Tympanoscope-Assisted Myringoplasty

“…In transcanal approaches using a microscope without any flap, it is impossible to visualize the medial wall of the tympanic membrane to ensure absence of epithelial ingrowth. Karhuketo et al [7] visualized middle ear structures with otoendoscopes of 0°, 30° and 90°a ngles of view both in patients and in cadaver temporal blocks. With the aid of otoendoscopes the medial wall of the tympanic membrane and the whole tympanic cavity and status of the ossicles can be visualized [7][8][9].…”