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Wireless, Web-Based Interactive Control of Optical Coherence Tomography with Mobile Devices.

Rajvi Mehta1, Derek Nankivil2, David J Zielinski3

  • 1Duke University Department of Ophthalmology, Durham, NC, USA.

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Summary

Researchers developed a wireless, mobile-controlled Optical Coherence Tomography (OCT) system. This innovation enables remote diagnostics and teleophthalmology, making OCT more accessible.

Keywords:
optical coherence tomographyremote diagnosticstelemedicine

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Area of Science:

  • Ophthalmology
  • Biomedical Engineering
  • Medical Technology

Background:

  • Optical coherence tomography (OCT) is a key imaging modality in ophthalmology.
  • Expanding OCT's utility to remote diagnostics and broader medical applications is a significant goal.
  • Current OCT systems often require dedicated hardware and on-site operation.

Purpose of the Study:

  • To develop a wireless, interactive control system for Optical Coherence Tomography (OCT) using mobile devices.
  • To enable remote operation and diagnostics capabilities for OCT systems.
  • To assess the feasibility and performance of mobile device control for OCT.

Main Methods:

  • A web-based user interface (WebUI) was created using HTML and JavaScript for a handheld OCT system.
  • Client-server architecture facilitated communication between the WebUI and the OCT system computer.
  • System latency was measured across various network connections (Wi-Fi, VPN, cellular) with 20 subjects undergoing imaging.

Main Results:

  • The WebUI successfully enabled mobile device control for capturing posterior eye OCT images in all participants.
  • Remote simultaneous control by a laptop user was demonstrated.
  • Added system latency was minimal, averaging 58 ms (Wi-Fi), 95 ms (VPN), and 170 ms (cellular), with no qualitative impact on operation.

Conclusions:

  • Wireless and remote control of an OCT system using mobile devices via a WebUI is feasible.
  • The developed platform, utilizing web and open-source tools, can support future teleophthalmology and remote OCT applications.
  • This approach enhances the accessibility and potential applications of OCT technology.