Laryngeal Endoscopic Imaging: Fundamentals and Key Concepts for Rating Selected Parameters

Abstract

Purpose The aims of this study were to describe the laryngeal endoscopic imaging techniques of videoendoscopy and videostroboscopy and to provide information regarding their use and limitations in clinical practice. Method Information is provided for (a) understanding that laryngeal endoscopic imaging consists of endoscopy and stroboscopy components and for understanding their distinctions, (b) specifying the scientific underpinnings of stroboscopic sampling and its limitations, and (c) describing selected endoscopy and stroboscopy parameters including rating instructions and clinical significance. Conclusions Laryngeal endoscopic imaging is a critical part of clinical voice evaluation. Successful use of laryngeal endoscopic imaging requires proper acquisition of images, knowledge of rating strategies and clinical interpretation, and recognizing its limitations.