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Related Concept Videos

Ultrasonography01:17

Ultrasonography

Ultrasonography is an imaging technique that uses high-frequency sound waves to visualize the body's internal structures. It is a non-invasive and safe procedure that does not involve the use of ionizing radiation, making it widely used in various medical fields. Ultrasonography is used to study heart function, blood flow in the neck or extremities, certain conditions such as gallbladder disease, and fetal growth and development.
During an ultrasonography procedure, a handheld device called a...
Ultrasound II: Endoscopic Ultrasound and FibroScan01:25

Ultrasound II: Endoscopic Ultrasound and FibroScan

Endoscopic Ultrasound (EUS) and FibroScan are valuable diagnostic tools in gastroenterology and hepatology, each with specific applications and techniques.
Endoscopic Ultrasound (EUS):
Imaging Studies II: Ultrasonography01:24

Imaging Studies II: Ultrasonography

IntroductionUltrasonography, or renal ultrasound, is a noninvasive medical imaging technique that uses high-frequency sound waves to visualize the kidneys, ureters, bladder, and surrounding tissues.Indications for Urinary System UltrasonographyUrinary system ultrasonography is indicated in various clinical scenarios, such as:Kidney Stones (Urolithiasis): To detect and monitor the size and presence of kidney or urinary tract stones.Hydronephrosis: To assess the dilation of the renal pelvis and...
Ultrasound I: Abdominal Ultrasonography01:20

Ultrasound I: Abdominal Ultrasonography

Introduction:
Abdominal ultrasonography, commonly known as abdominal ultrasound, is a vital, non-invasive medical imaging technique widely used in healthcare.
Procedure:
This diagnostic tool allows the clinician to visually inspect internal structures within the abdomen, including vital organs such as the liver, gallbladder, pancreas, kidneys, and spleen.
The abdominal ultrasound process begins with applying a special gel to the patient's skin over the abdomen. This gel enhances the...

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Related Experiment Video

Updated: May 23, 2026

Minimally Invasive Murine Laryngoscopy for Close&#45;Up Imaging of Laryngeal Motion During Breathing and Swallowing
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Minimally Invasive Murine Laryngoscopy for Close-Up Imaging of Laryngeal Motion During Breathing and Swallowing

Published on: December 1, 2023

Development and Clinical Implementation of Voice-, Probe-, Neck Movement-Synchronized Functional Laryngeal

Chikako Kunieda1, Tomohiro Mori2, Hiroyuki Kato2

  • 1Department of Otolaryngology, Hashima City Hospital, Hashima, Gifu, Japan.

Journal of Voice : Official Journal of the Voice Foundation
|May 21, 2026
PubMed
Summary

A novel voice-, probe-, neck movement-synchronized functional laryngeal ultrasonography (VPN-FLUS) system enhances laryngeal imaging. This technique offers comprehensive, reproducible visualization of the larynx and its dynamic movements for better anatomical understanding.

Keywords:
Arytenoid cartilageReverse rockingUltrasonographyVPN-FLUSVisual inspection of theneck

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Area of Science:

  • Medical Imaging
  • Otolaryngology
  • Anatomy

Background:

  • Conventional laryngeal ultrasonography has limitations in reproducibility.
  • Accurate visualization of laryngeal structures and dynamics is crucial for diagnosis and understanding voice disorders.

Purpose of the Study:

  • To introduce a novel system, voice-, probe-, neck movement-synchronized functional laryngeal ultrasonography (VPN-FLUS).
  • To overcome the low reproducibility of conventional laryngeal ultrasonography.
  • To integrate ultrasound imaging with voice, neck movement, and examiner observations.

Main Methods:

  • Utilized Canon Aplio i700 ultrasound system with linear probes.
  • Simultaneously captured synchronized audio and ultrasound images.
  • Recorded patient and examiner sessions, synchronizing data post-examination.
  • Performed 53 VPN-FLUS examinations on healthy volunteers and outpatients with voice disorders.

Main Results:

  • VPN-FLUS provided continuous, dynamic laryngeal visualization.
  • Enabled precise identification of intrinsic laryngeal muscles and arytenoid cartilage movements.
  • Assessed phonatory conditions, pitch variations, and respiratory/phonatory states.
  • Facilitated observation of overall laryngeal movement and cervical dynamics.

Conclusions:

  • VPN-FLUS technology offers comprehensive and reproducible laryngeal imaging.
  • Enhances anatomical understanding and multidimensional assessment of the larynx.
  • Requires further clinical validation for established clinical utility.