Actively Recruiting
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
Eligibility Criteria
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
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
Your Study Journey
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 visit (in-person)
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
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
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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