Eye Tracking in Laryngology

October 18, 2022 updated by: Diana M. Orbelo, Mayo Clinic

A Study to Assess Eye Tracking and Visual Gaze Patterns in Laryngology

The purpose of this study is to assess whether eye-tracking technology can be used to differentiate the visual gaze patterns of experienced and novice laryngoscopists while reviewing prerecorded laryngeal videos with both normal and abnormal findings and to characterize any differences arising between level of training groups.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Novice and experienced participants will be recruited to take part in this study. Novices include medical students without practical experience in otorhinolaryngology and resident physicians at different stages in training. Trainees, residents and experts from fields of gastroenterology and pulmonology will also be included. The experienced group will be defined as consultants and speech pathologists.

This study will look at multiple areas within otolaryngology including laryngology, rhinology, facial plastic surgery, head and neck oncology, and otology. Participants will view prerecorded videos and/or still pictures absent of patient identifiers.

There will be two tasks each taking approximately 10 minutes. Task order will be alternated between subjects with one task asking participants to view 7 still images from video laryngoscopy examinations. After each image participants will rate how likely the image is to represent glottic cancer and what portion of the image they deemed most important to their decision. For the second task, participants will be asked to view a 5 second video of a flexible laryngoscope exam, after which, they will be asked to identify the presence and side of vocal fold paralysis as well as note the location they deemed most important to their decision.

Study Type

Interventional

Enrollment (Actual)

30

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Minnesota
      • Rochester, Minnesota, United States, 55905
        • Mayo Clinic in Rochester

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Adults, age 18 and over.
  • Already professionals in a laryngology related field, residents in a related field or students considering a related field.
  • Related fields include otolaryngology, laryngology, and speech language pathology.

Exclusion Criteria:

- Anyone not meeting the inclusion criteria or anyone not wishing to participate.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Health Services Research
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Novice and experienced medical personnel
Participants will be asked to complete two tasks each taking approximately 10 minutes while wearing eye-tracking technology to understand focus of gaze during laryngeal endoscopy and stroboscopy interpretation.
Other: Eye Tracking Technology Sensor
Eye tracking will be performed using Tobii Pro eye tracking technology sensor (Tobii Pro Fusion, Stockholm, Sweden), providing binocular eye tracking up to 250 Hz. The sensor, positioned on the inferior aspect of the computer monitor, reflects infrared (IR) light beams off of each cornea and are subsequently captured.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Time to Fixation Fixation Point
Time Frame: 15 minutes
Defined as the temporary suspension of eye movement (80ms) on a specific point (≤ 30 pixels) within the field of view.
15 minutes
Percent of Fixation Time on pre determined area of interest
Time Frame: 15 minutes
Defined as the percent of total gaze time on area of interest
15 minutes
Count of Fixations
Time Frame: 15 minutes
Number of times observer returns gaze to area of interest
15 minutes

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Mayo Clinic

Investigators

  • Principal Investigator: Diana Orbelo, PhD, Mayo Clinic

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

June 29, 2021

Primary Completion (Actual)

February 1, 2022

Study Completion (Actual)

February 1, 2022

Study Registration Dates

First Submitted

August 30, 2021

First Submitted That Met QC Criteria

August 30, 2021

First Posted (Actual)

September 5, 2021

Study Record Updates

Last Update Posted (Actual)

October 19, 2022

Last Update Submitted That Met QC Criteria

October 18, 2022

Last Verified

October 1, 2022

More Information

Terms related to this study

Other Study ID Numbers

  • 20-012365

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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