[New medical imaging based on electron tracking Compton camera (ETCC)].

Area of Science:

• Medical Imaging
• Nuclear Physics
• Instrumentation

Context:

• Current medical imaging technologies face limitations in energy dynamic range and field of view.
• Developing novel imaging reagents and advanced radiation therapy monitoring tools is crucial for clinical advancements.

Purpose:

• To introduce and evaluate the capabilities of an Electron-Tracking Compton Camera (ETCC) for diverse applications.
• To demonstrate the ETCC's potential in simultaneous dual-tracer imaging, elemental analysis, and real-time Bragg peak monitoring.

Summary:

• The Electron-Tracking Compton Camera (ETCC) features a wide energy dynamic range (200-1,500 keV) and field of view (3 sr).
• Demonstrated applications include simultaneous 18F-FDG and 131I-MIBG imaging, mineral imaging (Mn-54, Zn-65, Fe-59) in vivo and in plants, and real-time Bragg peak monitoring using prompt gamma rays.
• The ETCC also enables 3D image reconstruction without target or camera rotation, showing promising results for phantom and in vivo studies.

Impact:

• The ETCC technology has the potential to revolutionize medical imaging by enabling novel reagent development and improving radiation therapy precision.
• Further development, including a multi-head system, aims to advance ETCC capabilities for practical clinical use.