Combined two-photon microscopy and angiographic optical coherence tomography.

Area of Science:

• Biomedical Optics
• In Vivo Imaging
• Microscopy and Optical Imaging

Background:

• Developing integrated imaging systems is crucial for comprehensive biological sample analysis.
• Previous combined two-photon microscopy (TPM) and optical coherence tomography (OCT) lacked detailed vascular visualization.
• The need for simultaneous molecular, cellular, and vascular information in live tissues is a significant challenge.

Discussion:

• The integration of angiographic OCT with TPM provides unprecedented multi-modal tissue characterization.
• This combined system successfully visualizes both local cellular/molecular and broader structural/vascular information.
• The application in mouse brain and ear cancer models demonstrates the system's versatility and efficacy.

Key Insights:

• A novel combined two-photon microscopy and angiographic optical coherence tomography (OCT) system has been developed.
• This integrated system enables simultaneous visualization of molecular, cellular, structural, and vascular information in vivo.
• The combined approach significantly enhances the elucidation of in vivo tissue microenvironments.

Outlook:

• Future research could explore this combined system for diagnosing and monitoring various diseases.
• Further optimization may lead to higher resolution and faster imaging speeds.
• This technology holds promise for advancing preclinical research and drug development.