Laryngeal Ultrasonography- An effective supplement to laryng
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Vocal fold polyps are a benign proliferative disease of the superficial lamina propria of the vocal folds, with hoarseness as the main symptom. They are the most common benign vocal fold lesions in clinical practice.

The aim of this study was to explore the value of transcutaneous laryngeal ultrasonography in the diagnosis of vocal fold polyps. 87 patients with vocal fold polyps were enrolled and examined by electronic laryngoscopy and percutaneous laryngeal ultrasound on the same day before operation.

To observe the effect of calcification length as a percentage of thyroid cartilage at the glottic level on vocal fold display, the characteristics of ultrasound images of vocal fold polyps and the value of transcutaneous laryngeal ultrasonography in the diagnosis of vocal fold polyps were assessed. Among 87 patients, the calcification rate of thyroid cartilage at the glottic level was 33.3%.

The differences in calcification rate and percentage of calcification length between males and females were statistically significant. The rate of detection of vocal folds decreased gradually with an increase in calcification length percentage. Imaging features of vocal fold polyps were hypo-echoic with a clear boundary and regular shape. The detection rates for circular and non-circular polyps were 92.0% and 70.6%. Ultrasound was more likely to detect circular than non-circular polyps; however, the difference was not significant.

Conclusively, Transcutaneous laryngeal ultrasonography can identify the morphology and location of vocal fold polyps and is non-invasive and highly accurate. Therefore, it has the potential to be an effective supplement to laryngoscopy for initial screening and post-operative review of vocal fold polyps.

Source: https://www.umbjournal.org/article/S0301-5629(20)30223-4/pdf
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