Oxygenation imaging in deep tissue with X-Ray luminescence computed tomography (XLCT)

Area of Science:

• Biomedical Imaging
• Biophysics
• Biotechnology

Background:

• Tissue oxygenation is critical for stem cell culture and cancer therapy response.
• Hypoxic bone marrow microenvironments are known to harbor cancer cells.
• Accurate molecular oxygen (O2) measurements are vital for monitoring cell cultures and treatment efficacy.

Purpose of the Study:

• To develop and validate a novel imaging approach for measuring oxygenation concentration in deep tissues.
• To leverage X-ray luminescent computed tomography (XLCT) for high-resolution O2 measurements.
• To enhance the monitoring of stem cells and cancer cell therapy responses.

Main Methods:

• Developed and tested novel biosensing films for oxygenation detection.
• Utilized X-ray luminescent experiments to validate biosensing films.
• Employed phantom experiments with multiple targets to validate the XLCT imaging system across two channels.

Main Results:

• Successfully developed biosensing films for oxygenation measurements.
• Validated the XLCT imaging system's capability for high-resolution O2 detection in deep tissues.
• Demonstrated the system's effectiveness through multi-target phantom experiments.

Conclusions:

• The proposed XLCT imaging approach offers a powerful tool for high-resolution molecular oxygen measurements in deep tissues.
• This method has significant potential for applications in stem cell research and cancer therapy monitoring.
• The developed biosensing films and validated XLCT system provide a promising solution for advanced biomedical imaging.