Total-body PET: a new paradigm for molecular imaging

Area of Science:

• Medical Imaging
• Nuclear Medicine
• Radiochemistry

Background:

• Total body positron emission tomography (TB-PET) instruments represent a significant advancement in PET technology.
• These systems offer unprecedented sensitivity and the ability to simultaneously image dynamic radiopharmaceutical distributions across major organs.

Purpose of the Study:

• To review the design principles and performance trade-offs of current TB-PET systems.
• To explore emerging concepts and technologies for future TB-PET development.
• To summarize initial findings and potential applications of TB-PET in research and clinical settings.

Main Methods:

• Review of current TB-PET system designs and their performance characteristics.
• Discussion of challenges and optimization strategies for TB-PET systems.
• Exploration of novel technologies impacting future TB-PET development.

Main Results:

• Current TB-PET systems with extended axial fields-of-view (AFOV) from 1 to 2 m demonstrate significant benefits.
• Early clinical and research experiences highlight the transformative potential of TB-PET.
• TB-PET systems are poised to expand the scope of molecular imaging and enhance clinical practice.

Conclusions:

• TB-PET systems are revolutionizing molecular imaging with their enhanced sensitivity and whole-body imaging capabilities.
• The continued development and application of TB-PET promise to significantly benefit both research and clinical practice.
• These systems represent a major step forward in diagnostic and therapeutic monitoring through advanced molecular imaging.