Cherenkov light for total-body Positron Emission Tomography

Introduction

The paradigm shift in medicine from the treatment of acute or advanced disease to very early diagnosis and even prevention in cancer, as well as in personalized treatment, puts more stringent requirements on positron-emission (PET) imaging both in terms of sensitivity as well as specificity.

Novel Solutions

Novel long axial PET scanners with an axial field of view that can be greater than 1m offer a very attractive solution to many of these challenges, in particular if they are combined with the Time-of-flight (TOF) PET technology.

Technical Challenges

The time-of-flight resolution of PET scanners is limited by the timing spread due to delayed scintillation emission. By using prompt Cherenkov photons instead, the coincidence timing resolution can be improved.

Proposed Innovation

We propose to prove the feasibility of the above idea by combining a set of our breakthrough innovation steps, including:

1. Latest advances in photon detection with large area fast photon detectors
2. Low-noise fast timing electronics

Expected Outcomes

The PET detector that we would develop in the proposed project would allow for the construction of a PET scanner at a lower cost, better performance, and ease of handling, when compared with the state-of-the-art clinical devices.

Conclusion

If successful, our technology will represent a major leap in the use of PET for:

• Cancer diagnosis
• Staging
• Restaging
• Prodromal detection of neurodegenerative and cardiac diseases
• Treatment guidance and monitoring