Imaging tumor metabolism using positron emission tomography.

Area of Science:

• Oncology
• Nuclear Medicine
• Medical Imaging

Background:

• Positron emission tomography (PET) is a highly sensitive imaging technique for assessing tumor metabolism.
• PET allows noninvasive tracking of radiolabeled substrates at low concentrations to study tumor metabolism and heterogeneity.
• Established and novel PET radiotracers enable investigation of diverse metabolic pathways in tumors.

Purpose of the Study:

• To review established and emerging PET radiotracers for tumor metabolism.
• To discuss current challenges and future directions in PET-based cancer imaging.
• To explore the potential of new technologies like combined PET/MRI.

Main Methods:

• Review of established and novel PET radiotracers.
• Discussion of applications in preclinical cancer models and clinical settings.
• Consideration of technical advancements in PET imaging.

Main Results:

• PET imaging provides detailed insights into tumor metabolism and heterogeneity.
• A range of radiotracers exist for studying carbohydrate, amino acid, and fatty acid metabolism.
• New tracer development and combined imaging technologies show promise.

Conclusions:

• PET is a powerful tool for interrogating tumor metabolism.
• Continued development of PET radiotracers and technologies will advance cancer diagnostics.
• Combined PET/MRI offers potential solutions for challenging diagnostic problems in oncology.