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In the field of vestibular medicine, accurate assessment of otolith function plays a crucial role in diagnosing dizziness, balance disorders, and central nervous system dysfunctions. Among the most important clinical tools for this purpose is the Subjective Visual Vertical (SVV) and Subjective Visual Horizontal (SVH) test, which evaluates a patient’s perception of gravity and spatial orientation.

Traditional methods, however, often face limitations such as inconsistent visual environments, subjective variability, and lack of digital integration. To address these challenges, ZEHNIT Medical Technology has developed VertiSVV™, a next-generation SVV/SVH testing system designed to deliver high precision, standardized procedures, and seamless clinical integration.

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A Fully Integrated SVV/SVH Diagnostic System

VertiSVV™ is a compact and intuitive system designed to assess otolith organ function and central vestibular pathways by measuring how patients perceive vertical and horizontal orientation.

The system consists of three core components:

• VR-based goggles that eliminate all external visual references

• A wireless ergonomic controller for precise visual alignment

• VertiPACS software platform for data acquisition, analysis, and reporting

By combining hardware and software into a unified ecosystem, VertiSVV™ ensures consistent testing conditions and reproducible results, significantly improving clinical reliability.

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Eliminating Visual Bias with Immersive VR Technology

One of the key advantages of VertiSVV™ is its use of fully immersive VR goggles, which create a completely dark visual environment. This eliminates external visual cues that could interfere with the patient’s perception of verticality.

Inside this controlled environment, patients are presented with a luminous visual target—typically a line or bar—on a black background. Without any external reference points, clinicians can obtain a pure measurement of vestibular perception accuracy.

To enhance flexibility, VertiSVV™ also offers dual stimulus modes, allowing clinicians to adapt testing protocols based on patient condition and diagnostic needs.

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High-Precision Measurement with ±0.2° Accuracy

VertiSVV™ enables patients to adjust the orientation of a visual target using a high-precision wireless controller. The system records deviations from true vertical or horizontal with an accuracy of up to ±0.2°, ensuring reliable and repeatable measurements.

Key technical advantages include:

• Real-time head position tracking

• Roll and yaw angle detection

• Adjustable tilt testing (upright and inclined positions)

• User-defined measurement grouping for clinical analysis

These features allow clinicians to evaluate both utricular and saccular function, as well as detect subtle abnormalities in central vestibular processing.

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Real-Time Feedback and Intelligent Workflow

VertiSVV™ is not only a measurement device but also an intelligent diagnostic workflow system. During testing, clinicians can monitor:

• Head orientation in real time

• Target alignment status

• Patient adjustment behavior

• Deviation values instantly displayed on the software interface

The system guides users step-by-step through the testing process, reducing operator error and ensuring standardized clinical execution across different examiners and institutions.

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Seamless Integration with VertiPACS™

All data generated by VertiSVV™ is managed through VertiPACS™, ZEHNIT’s integrated vestibular software platform.

VertiPACS provides:

• Patient data management and storage

• Automated calculation of mean deviation and statistical values

• Normative comparison and visual reporting

• Editing and playback of test results

• Network-based remote access for multi-location clinical use

This integration enables hospitals and clinics to build a fully digital vestibular diagnostic workflow, improving efficiency and collaboration.

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Clinical Applications Across Vestibular Medicine

VertiSVV™ is widely used in:

• ENT (Otolaryngology) departments

• Neurology clinics

• Dizziness and balance centers

• Vestibular research laboratories

It is particularly valuable for diagnosing conditions such as:

• Benign Paroxysmal Positional Vertigo (BPPV)

• Vestibular neuritis

• Menière’s disease

• Central vestibular disorders

• Otolith dysfunction syndromes

By providing objective and quantifiable measurements, VertiSVV™ supports clinicians in making more accurate and evidence-based diagnostic decisions.

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Advancing Vestibular Diagnostics into the Digital Era

As vestibular diagnostics continues to evolve toward digitalization and precision medicine, tools like VertiSVV™ represent a significant step forward.

By combining VR-based visual isolation, high-precision measurement, wireless interaction, and intelligent software analysis, VertiSVV™ transforms a traditionally subjective examination into a standardized, data-driven clinical procedure.

This not only improves diagnostic accuracy but also enhances workflow efficiency and enables better long-term patient monitoring.

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Conclusion

VertiSVV™ represents a new generation of vestibular diagnostic technology—one that bridges the gap between clinical tradition and digital innovation. With its immersive design, high-precision measurement capabilities, and seamless software integration, it empowers clinicians to better understand and evaluate vestibular function with confidence.

In a field where even small measurement deviations can influence diagnosis, VertiSVV™ delivers what matters most: accuracy, consistency, and clinical trust.

https://www.zehnit.net/
ZEHNIT Medical Technology

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