Actively Recruiting

Phase Not Applicable
Age: 18Years +
All Genders
Healthy Volunteers
ID07173309

Evaluation of Eye Gaze Sharing in the Operating Room for Endoscopic Kidney Stone Surgery

Led by Vanderbilt University Medical Center · Updated on 2026-05-22

110

Participants Needed

1

Research Sites

4 weeks

Total Duration

On this page

Sponsors

V

Vanderbilt University Medical Center

Lead Sponsor

N

National Institute for Biomedical Imaging and Bioengineering (NIBIB)

Collaborating Sponsor

AI-Summary

What this Trial Is About

Researchers are evaluating an augmented reality (AR) tool designed to improve skill acquisition for endoscopic kidney stone surgery. The study addresses the high rate of repeat surgeries caused by residual stone fragments, which are linked to limited visualization skills, especially among novice surgeons. By enhancing surgical training through better visualization techniques, the trial aims to improve outcomes and reduce complications in kidney stone treatment. The study involves surgical trainees and expert surgeons who will use Microsoft HoloLens 2 devices to track and share eye gaze data during the kidney exploration phase of endoscopic stone surgery. Participants are randomized into two groups: one with AR gaze guidance projecting the expert's gaze to trainees, and a control group receiving only standard verbal feedback without AR. Each trainee will perform stone localization on multiple patients, with AR guidance active only during the exploration phase, after which the surgery proceeds as usual. Participants will be assessed on their ability to visualize the entire intrarenal collecting system during surgery, with eye gaze metrics collected and analyzed postoperatively. The study measures skill acquisition by comparing the completeness of kidney exploration and gaze patterns between groups. All surgeries use standard equipment, and patient care continues according to current practices. Data collection does not affect operative time or patient treatment, and the study aims to analyze around 100 datasets from surgeries involving trainees and experts.

CONDITIONS

Brief Title

Evaluation of Eye Gaze Sharing in the Operating Room

Who Can Participate

Age: 18Years +
All Genders
Healthy Volunteers

Eligibility Criteria

Eligible

You may qualify if you...

  • Surgeons who are adult residents or attending urologists at Vanderbilt University Medical Center aged 18 to 65
  • Adult patients with kidney stones scheduled for endoscopic surgery as clinically indicated
Not Eligible

You will not qualify if you...

  • Vulnerable populations, including incarceration status
  • Pregnancy
  • Inability to give informed consent
  • Serious illness likely to cause death within 5 years

AI-Screening

AI-Powered Screening

Complete this quick 3-step screening to check your eligibility

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Your Study Journey

Screening

Duration - 2 to 4 weeks

Participants are screened for eligibility to participate in the trial.

1 visit (in-person)

Implementation

Duration - During each of 10 surgeries per trainee

Participants undergo endoscopic kidney stone surgery while wearing HoloLens 2 devices to collect eye gaze data during the kidney exploration phase. Trainees in the experimental group receive augmented reality gaze guidance in addition to verbal feedback, while those in the control group receive verbal feedback only. The intervention occurs during the kidney exploration phase of each surgery, and the rest of the surgery proceeds as standard of care.

10 surgery visits

Post-operative Follow-up

Duration - Up to a few days after each surgery

After each surgery, surgical videos and eye gaze data are recorded and analyzed postoperatively to assess skill acquisition and gaze metrics. There is no additional impact on operative time or care.

Data collection occurs postoperatively without additional visits

Trial Site Locations

Total: 1 location

1

Vanderbilt University Medical Center

Nashville, Tennessee, United States, 37232

Actively Recruiting

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Research Team

N

Nicholas L Kavoussi, MD

J

Jie Ying Wu, PhD

How is the study designed?

Study Type

INTERVENTIONAL

Masking

NONE

Allocation

RANDOMIZED

Model

PARALLEL

Primary Purpose

OTHER

Number of Arms

2

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