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Published on: August 9, 2016
Utilization of intraoperative confocal laser endomicroscopy in brain tumor surgery
Evgenii Belykh1,2, Claudio Cavallo1, Sirin Gandhi1
1Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, AZ, USA.
Abstract:
Precise identification of tumor margins is of the utmost importance in neuro-oncology. Confocal microscopy is capable of rapid imaging of fresh tissues at cellular resolution and has been miniaturized into handheld probe-based systems suitable for use in the operating room. We aimed to perform a literature review to provide an update on the current status of confocal laser endomicroscopy (CLE) technology for brain tumor surgery. Aside from benchtop confocal microscopes used in ex vivo fashion, there are four CLE systems that have been investigated for potential application in the workflow of brain tumor surgery. Preclinical studies on animal tumor models and clinical studies on human brain tumors have assessed in vivo and ex vivo imaging approaches, suggesting that confocal microscopy holds promise for rapid identification of the characteristic (diagnostic) histological features of tumor and normal brain tissues. However, there are few studies assessing diagnostic accuracy sufficient to provide a definitive determination of the clinical and economical value of CLE in brain tumor surgery. Intraoperative real-time, high-resolution tissue imaging has significant clinical potential in the field of neuro-oncology. CLE is an emerging imaging technology that shows promise for improving brain tumor surgery workflow in in vivo and ex vivo studies. Future clinical studies are necessary to demonstrate clinical and economic benefit of CLE.
Insights
Confocal laser endomicroscopy (CLE) offers rapid, cellular-resolution imaging for brain tumor surgery. While promising for identifying tumor margins, further clinical studies are needed to confirm its diagnostic accuracy and value.
Area of Science:
- Neuro-oncology
- Medical Imaging
- Surgical Technology
Background:
- Accurate identification of tumor margins is critical in neurosurgery.
- Confocal microscopy provides cellular resolution imaging of fresh tissues.
- Miniaturized probe-based systems are suitable for intraoperative use.
Purpose of the Study:
- To review the current status of confocal laser endomicroscopy (CLE) for brain tumor surgery.
- To update on the potential applications of CLE in neuro-oncology.
- To assess the readiness of CLE for clinical integration.
Main Methods:
- Literature review of preclinical and clinical studies.
- Assessment of in vivo and ex vivo imaging approaches using CLE systems.
- Evaluation of studies investigating CLE for brain tumor surgery.
Main Results:
- Four CLE systems have been explored for brain tumor surgery workflows.
- CLE shows potential for rapid identification of histological features in tumor and normal brain tissue.
- Limited studies exist on the diagnostic accuracy and clinical utility of CLE.
Conclusions:
- Confocal laser endomicroscopy is an emerging technology with significant potential for intraoperative imaging in neuro-oncology.
- CLE may improve brain tumor surgery by providing real-time, high-resolution tissue visualization.
- Further clinical studies are required to establish the definitive clinical and economic benefits of CLE.
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