Key Points
  1. Image1 S is an effective and practical endoscopic technique for evaluation of the vascular characteristics of laryngeal lesions to predict malignancy.
  2. Learning curve for endoscopic evaluation of laryngeal lesions with Image1 S enhancement system is irrespective of evaluator’s working experience.
  3. The spectral modes (Spectra A and Spectra B) were preferred over white light when examining laryngeal lesions.