Optoacoustic endoscopy with curved scanning.

Area of Science:

• Biomedical Optics
• Medical Imaging
• Acoustic Imaging

Background:

• Optical microscopy is limited in imaging depth.
• Optoacoustic (photoacoustic) imaging offers deeper tissue visualization.
• Endoscopic imaging requires advanced techniques for deeper resolution.

Purpose of the Study:

• To investigate the benefits of optoacoustic endoscopy.
• To explore linear and curved sound detector geometries for optoacoustic endoscopy.
• To assess the potential for hybrid optical and optoacoustic endoscopic imaging.

Main Methods:

• Implementing optoacoustic endoscopy with a translating sound detector.
• Utilizing intravascular ultrasound transducers within shaped plastic guides.
• Achieving linear and curved detection geometries.

Main Results:

• Optoacoustic endoscopy can resolve features beyond optical microscopy's reach.
• Linear and curved geometries were successfully implemented using intravascular ultrasound transducers.
• The developed concept is compatible with existing optical endoscopes.

Conclusions:

• Optoacoustic endoscopy presents a promising advancement for deep-tissue endoscopic imaging.
• The use of linear and curved detection geometries enhances the versatility of optoacoustic endoscopy.
• Hybrid optical and optoacoustic imaging through endoscopy can provide comprehensive visualization.