EquiCOG

Videonystagmography (VNG) is a test that uses special goggles with cameras to track your eye movements. It helps doctors check how well your inner ear and brain control balance. The eyes move in certain ways when your head moves, and VNG records that.

VNG is the gold standard test for dizziness that helps doctors figure out if vertigo comes from your inner ear or your brain. Healthy balance relies on your inner ear, vision, and body-position sense working together. When the ear’s balance system isn’t working, you get jerky eye movements (nystagmus) and feel dizzy. By recording these eye movements, VNG lets doctors diagnose problems like inner-ear inflammation or brain issues.

VNG goggles use high-resolution video to catch every eye movement, even tiny twists, that ENG’s electrodes miss. They’re comfortable and quick to put on like ski goggles, avoiding sticky wires and skin preparation. Clinicians can watch and replay real eye videos for clearer diagnosis and teaching, instead of reading electrical blips. With fewer artifacts, faster setup, and easy cleanup, VNG delivers cleaner, more efficient vestibular testing.

VNG (Video Nystagmography) doesn’t diagnose specific diseases, but it spots abnormal eye movements that suggest balance issues. When combined with a person’s symptoms, it can help identify inner ear problems like BPPV (tiny crystals out of place), vestibular infections, Ménière’s disease (with vertigo and hearing loss), or even rare tumors like acoustic neuroma. Each condition shows unique movement patterns during testing. Doctors use these clues to figure out what’s going wrong and how best to treat it.

The vestibular system in the inner ear helps us keep balance by sending signals to the brain about head movement and position. When this system is damaged or disrupted due to infection, injury, or other causes, it creates confusion in these signals. This mismatch can make the brain think you're moving when you're not, leading to dizziness, vertigo, or unsteadiness. The brain tries to adapt, but symptoms can vary depending on where the problem is, whether it is inner ear or brain.

Nystagmus is uncontrolled eye movement, and VNG can detect different types based on direction and cause. Horizontal (side-to-side) often signals inner ear issues, while vertical (up or down) or gaze-evoked types may hint at brain problems. Torsional (twisting) movement is common in certain vertigo types like BPPV. Nystagmus may also appear with no trigger (spontaneous) or when changing head position (positional), helping doctors understand where the issue lies.

EquiCOG is a next-generation videonystagmography system that not only records high-resolution eye movements but also simultaneously tracks head motion in 3D. Unlike traditional VNG, it includes torsional eye tracking, guided test workflows, and advanced analysis for better diagnostic precision.

EquiCOG is a high-tech headset that tracks both eye and head movements in real time using special cameras and sensors. It can capture even tiny, fast eye motions in 3D, including twisting ones most systems miss. By syncing head and eye data, it shows how the eyes react to movement or position changes. This helps doctors accurately detect balance problems even if the patient moves during testing.

Any patient with dizziness, vertigo, imbalance, visual instability, suspected BPPV, Ménière’s, or central vestibular issues. It’s especially helpful in complex or chronic dizziness cases.

Depending on the protocol, 20–45 minutes. The streamlined workflow, guided prompts, and quick setup make it significantly faster than traditional systems.

Yes. Features such as fixation suppression, torsional direction, gaze-evoked nystagmus, and ocular motor test abnormalities help identify central lesions. Combined head and eye data improve localization.

Yes. It fully supports caloric protocols and provides precise eye movement tracing during thermal stimulation of each ear.

Absolutely. It offers real-time torsional tracking and head angle monitoring during Dix-Hallpike and positional tests, making canal identification more accurate.

Most traditional VNGs ignore torsional (rotary) components. EquiCOG quantifies torsion, which is critical for diagnosing BPPV, central causes, and differentiating cupulolithiasis from canalithiasis.

This mode darkens the patient’s vision to remove fixation. The clinician gets a magnified video feed to observe nystagmus more clearly, ideal for spontaneous or subtle positional findings.

Yes, EquiCOG goggles can be worn inside compatible rotational chairs, capturing synchronized head and eye movements during rotation.

ENT, Neurology, Audiology, Vestibular Therapy, Geriatrics, and Physical Therapy. It is especially effective in interdisciplinary vertigo clinics.

In-house diagnostics save referrals, increase patient throughput, reduce test time, and enhance diagnostic accuracy—translating to more billed procedures and better outcomes.

EquiCOG focuses on VNG, but Taevas offers EquiFHit for vHIT and Equipoise for posturography. They are complementary and can be integrated as a suite.

No. The system is designed for ease of use with real-time visual prompts, head angle indicators, and a user-friendly interface. Basic training is sufficient.

EquiCOG uses dual high-resolution infrared cameras recording at 120 frames per second per eye. This ensures accurate capture of high-speed and micro eye movements for detailed velocity and torsional analysis.

Yes. EquiCOG uses iris pattern rotation tracking to compute torsional traces, enabling precise angular velocity and direction plotting—useful in BPPV and central disorders.

EquiCOG is equipped with a 3-axis IMU (Inertial Measurement Unit) that includes both gyroscope and accelerometer, allowing for real-time tracking of head position, angle, and velocity.

Eye and head data streams are time-synchronized with millisecond precision. Real-time plotting ensures sub-frame alignment for dynamic vestibulo-ocular reflex (VOR) correlation.

EquiCOG software runs on a Windows-based PC (minimum i5 processor, 8GB RAM recommended). It uses a proprietary Taevas interface for real-time data capture, analysis, and reporting.

Yes. The software provides auto-generated clinical reports that include graphical eye movement traces, torsional velocity plots, cumulative slow-phase velocity, head movement overlays, and snapshot images or embedded video segments.

Reports are exportable in PDF, making them compatible with most EMR systems. HL7 integration is possible via API for hospitals using structured data ingestion.

Yes. It supports multi-user logins with role-based access (technician, clinician, admin), and maintains session logs for audit trail compliance.

Each infrared camera records in at least 640×480 or higher resolution at 120fps. This allows clean, high-contrast pupil tracking even in low light.

Yes. The algorithm uses real-time pupil centroid detection, accounts for eyelid interference, and flags blink artifacts in recorded sessions.

Yes. The clinician sees dual-eye live video, numerical traces, and head orientation all on a single interface, in real time.

Yes. Eye and head movement data can be exported in CSV or XML formats for custom research use. Video segments are also downloadable.

Yes. All core testing and report generation is offline-capable. Internet is only needed for updates or remote support.

Yes. The goggle headset is secure, balanced, and rotational-chair compatible, allowing synchronized data capture during dynamic rotation protocols.

Yes. EquiCOG integrates smoothly with EquiFHit for high-speed head impulse testing, Equipoise for computerized posturography, and Audecom for audiometric evaluations.

The goggles are USB-powered via a PC or power bank. No external power supply is required for basic operation.

Yes. All customers receive lifetime software updates, including bug fixes, UI improvements, and new protocols (subject to license type).

EquiCOG is CE-marked for clinical use and built to IEC 60601 safety standards. FDA clearance is in process (if applicable to your market).

The installation is plug-and-play. The Taevas team provides training, calibration support, and software updates. Ongoing remote support is available.