Computer-vision detection of delirium from ICU patients' facial expressions
Official title: Research on Delirium Recognition in Neurocritical Patients Based on Facial Expression Behavior Patterns
Run by Beijing Tiantan Hospital · NCT07136207 · Data updated 2026-11-12
This project tests whether a smartphone app using computer vision can detect delirium from facial expressions in adult neurocritical care patients.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 18 Years to 80 Years |
| Sex | All |
| Enrollment | 1000 (estimated) |
| Sponsor | Beijing Tiantan Hospital Academic / other |
| Locations | 1 site (Beijing, Beijing Municipality) |
| Status | Recruiting |
| Started | August 30, 2025 |
| Main results expected | December 30, 2025 |
| Study ends | January 30, 2026 |
| Registry record updated | August 22, 2025 |
| Trial ID | NCT07136207 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults (over 18) admitted to a neurocritical care ICU—including postoperative neurosurgical and stroke patients—who can provide informed consent or have proxy consent.
✕Probably not a fit
Patients with persistent coma, facial paralysis or major facial disfigurement, severe dementia, Parkinson's disease, or very short ICU stays are unlikely to benefit from facial-recognition–based detection.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This prospective cohort uses a mobile application to record dynamic facial videos of neurocritical ICU patients following a CAM-ICU–based stimulus paradigm and DSM‑5 delirium diagnosis by an experienced specialist. Recordings are taken twice daily during ICU admission (8:00–10:00 AM and 8:00–10:00 PM) and captured within five minutes of the clinical delirium assessment. Images are preprocessed, augmented, and fed into a convolutional neural network (VGG16) pipeline to construct multidimensional behavioral features and build a classification model. The study was approved by the Beijing Tiantan Hospital Ethics Committee and combines clinical input with engineering expertise from the Institute of Computing Technology, CAS.
Why it matters
Potential benefit: If successful, the system could help clinicians detect delirium earlier and more consistently by providing automated facial-expression analysis.
How similar studies have gone: Some pilot and small-scale studies applying computer vision and AI to delirium or emotion detection have shown promise, but large-scale validation in neurocritical populations is limited.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: 1. Neurocritical patients admitted to the ICU, including postoperative neurosurgical patients, stroke patients, and those receiving ICU care due to other neurological conditions. 2. Age over 18 years. 3. Signed informed consent. Exclusion Criteria: 1. Age under 18 years. 2. Persistent coma (GCS ≤ 8) within 7 days pre- and post-surgery, making delirium assessment impossible. 3. Did not survive more than 24 hours in the ICU. 4. Patients with facial paralysis, post-traumatic facial disfigurement, or other conditions that could significantly affect facial recognition. 5. Exclusion of patients with severe dementia, Parkinson's disease, depression, or other conditions that might impact facial emotional expressions.
Where it's running
-
Beijing Tiantan Hospital
Beijing, Beijing Municipality, China Recruiting
Study contacts
- Study coordinator: Huang Huawei, Doctoral degree
- Email: huanghw0403@163.com
- Phone: +8613599058877
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.