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Multispectral Real-time Fluorescence Imaging for Intraoperative Detection of the Sentinel Lymph Node in Gynecologic Oncology

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Published on: October 20, 2010

A Multimodality Hybrid Gamma-Optical Camera for Intraoperative Imaging.

John E Lees¹, Sarah L Bugby², Mohammed S Alqahtani³

¹Space Research Centre, Michael Atiyah Building, University of Leicester, Leicester LE1 7RH, UK. John.Lees@le.ac.uk.

Sensors (Basel, Switzerland)

|March 12, 2017

Summary

New hybrid imaging cameras combine gamma and optical imaging for enhanced bedside and surgical visualization. This multi-modal approach improves localization for procedures like sentinel node detection and offers advanced capabilities like depth estimation.

Keywords:

NIR fluorescence clinical images gamma camera hybrid imaging optical imaging

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Area of Science:

Medical Imaging
Nuclear Medicine
Biomedical Engineering

Background:

Small field of view (SFOV) hand-held gamma-ray detectors enable bedside and operating theatre imaging.
Early SFOV cameras focused solely on gamma-ray imaging.
Recent advancements have led to hybrid gamma-plus-optical imaging systems.

Purpose of the Study:

To develop and evaluate a hybrid gamma-plus-optical imaging system for multi-modal clinical applications.
To explore the potential of hybrid imaging in improving the localization of radionuclide uptake.
To extend the hybrid camera concept to include stereoscopic imaging, depth estimation, and simultaneous gamma and fluorescence imaging.

Main Methods:

Development of a hybrid gamma and optical camera system.
Testing of the system in laboratory simulations and clinical settings.
Application of the hybrid camera for thyroid scintigraphy and Near-Infrared (NIR) fluorescence imaging.

Main Results:

The hybrid camera provides high spatial resolution, superimposed scintigraphic and optical images.
Successful dual-modality imaging was achieved in both simulations and clinical patient data.
The system demonstrated capabilities for depth estimation of radionuclide distribution and combined gamma/NIR fluorescence imaging.

Conclusions:

Hybrid imaging offers significant potential for assisting clinicians and surgeons in precise localization during medical procedures.
The developed multi-modal detector design enables advanced imaging functionalities, including depth perception and simultaneous multi-isotope/fluorescence detection.
This technology represents a significant step forward in diagnostic and interventional imaging, with demonstrated clinical utility.