A Pilot Study of FDG-PET/CT in Polycythemia Vera Using Global Analysis Techniques

Area of Science:

• Nuclear Medicine
• Hematology
• Oncology

Background:

• Myeloproliferative neoplasms (MPNs), like polycythemia vera (PV), are characterized by hyperactive bone marrow.
• Functional imaging offers a non-invasive method to assess this metabolic activity.

Purpose of the Study:

• To investigate the utility of FDG-PET/CT scans in quantifying bone marrow metabolic activity in patients with PV.
• To compare FDG uptake in the bone marrow of PV patients versus healthy controls.

Main Methods:

• Analysis of FDG-PET/CT scans from 6 patients with PV and 6 age- and sex-matched controls.
• Quantitative global analysis using mean standardized uptake value (SUV) in various skeletal structures.

Main Results:

• PV patients exhibited significantly elevated bone marrow FDG uptake across multiple skeletal sites (femoral neck, lumbar spine, pelvis, sternum) compared to controls.
• Significant differences in mean SUV were observed in the femoral neck (p=0.01), lumbar spine (p=0.02), pelvis (p=0.002), and sternum (p=0.04).
• Variations in splenic uptake were noted between treated and untreated PV patients.

Conclusions:

• FDG-PET/CT imaging can effectively reflect the hyperactive bone marrow state in polycythemia vera.
• PET-derived metabolic data holds promise for future applications in PV diagnosis and management.
• Further research is warranted to fully establish the role of PET in managing PV.