[68Ga]Ga-FAPI-46 PET/MRI for Therapy Monitoring of Desmoid Tumors

Area of Science:

• Oncology
• Radiology
• Nuclear Medicine

Background:

• Desmoid tumors (DT) are locally aggressive neoplasms with a high recurrence rate.
• Magnetic resonance imaging (MRI) is standard for DT staging but has limitations in therapy monitoring.
• Fibroblast activation protein (FAP) is highly expressed in desmoid tumors.

Purpose of the Study:

• To evaluate the utility of [68Ga]Ga-FAPI-46 positron emission tomography (PET) for therapy monitoring in a patient with desmoid tumors.
• To demonstrate the potential of FAPI-PET as an advanced imaging modality for assessing treatment response in DT.

Main Methods:

• A case study of a desmoid tumor patient undergoing therapy.
• Utilized [68Ga]Ga-FAPI-46 PET imaging for visualizing tumor activity and response.
• Compared PET findings with conventional imaging modalities (implicitly MRI).

Main Results:

• [68Ga]Ga-FAPI-46 PET successfully visualized desmoid tumor activity.
• The study suggests FAPI-PET is a promising tool for therapy monitoring in DT.
• Demonstrated potential for more precise assessment of treatment efficacy.

Conclusions:

• [68Ga]Ga-FAPI-46 PET imaging is a valuable tool for monitoring desmoid tumor therapy.
• FAPI-PET offers improved precision for assessing treatment response compared to traditional methods.
• This modality holds significant promise for optimizing desmoid tumor management.