What is the difference between stroboscopy and FEES or endoscopy?
Barbara P. Messing, M.A., CCC-SLP, BRS-S replies...
Laryngeal Stroboscopy is an vocal tract imaging system using a xenon light source that allows us to visualize the larynx/vocal folds and most especially the vibratory motion of the vocal folds. We are also able to clearly see vocal fold problems or pathologies such as nodules, polyps, cysts, etc. We use both rigid and flexible endoscopes during this procedure.
Flexible endoscopic Evaluation of Swallow FEES using a flexible endoscope to visualize the patients throat / larynx when they swallow food and liquid. This is a way to determine if a person has a swallowing problem. There are other ways to evaluate a swallow such as a Modified Barium Swallow Study which provides a fluoroscopic image [like in X-Rays] of a persons mouth, throat and esophagus as they swallow barium contrast and different foods and liquids coated with barium.
Endoscopy just means that an instrument is used to look inside the body. Therefore, we call the instruments endoscopes. Endoscopes are either rigid or flexible endoscopes.
Thank you for posting your question.