Four-dimensional quantitative analysis using FDG-PET in clinical oncology

Area of Science:

• Oncology
• Nuclear Medicine
• Radiology

Background:

• F-18 fluorodeoxyglucose (FDG) Positron Emission Tomography (PET) is a standard oncological tool.
• High-resolution PET enables 3D analysis of FDG distribution for tissue characterization, risk assessment, and treatment monitoring.
• Tumor metabolic changes (SUV, MTV) and heterogeneity are key indicators of aggressiveness and treatment resistance.

Purpose of the Study:

• To review novel quantitative analysis techniques for FDG distribution and glucose metabolism using 4D FDG PET-CT.
• To highlight the role of advanced PET-CT in precise tissue characterization and optimizing oncology treatment strategies.

Main Methods:

• Utilizing high-resolution PET for 3D analysis of in vivo FDG distributions.
• Employing radiomics to quantify intratumoral heterogeneity.
• Incorporating dynamic FDG PET-CT for assessing temporal uptake changes and differentiating pathological from physiological uptakes.
• Introducing new parameters for in vivo quantitative analysis of FDG metabolic processes.

Main Results:

• Dynamic FDG PET-CT demonstrates clinical feasibility for oncological cases.
• Advanced quantitative analysis, including 4D FDG PET-CT, allows for precise tissue characterization of lesions.
• New parameters enhance the in vivo quantitative analysis of metabolic processes.

Conclusions:

• Four-dimensional FDG PET-CT offers precise tissue characterization for various lesions.
• Advanced quantitative analysis of FDG metabolism using 4D PET-CT is crucial for refining oncology treatment strategies.
• This technology plays a vital role in improving patient outcomes through better characterization and monitoring.