18 F-FAPI-42 PET/CT is a novel imaging tool targeting fibroblast activation protein (FAP). We describe the 18 F-FAPI-42 PET/CT findings of a left ventricular mural thrombus in a 50-year-old man who had chest tightness. The 18 F-FAPI-42 PET/CT showed annular uptake at the apex of the left ventricle, but there was no uptake of 18 F-FDG. This case showed that abnormal 18 F-FAPI-42 uptake in the heart may be associated with mural thrombus and should be evaluated clinically.
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http://dx.doi.org/10.1097/RLU.0000000000005051 | DOI Listing |
Mol Pharm
January 2025
Department of Nuclear Medicine, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China.
This study aimed to develop and evaluate a novel fibroblast activation protein (FAP)-specific tracer, fluorine-18-labeled fibroblast activation protein inhibitor-FUSCC-07 ([F]F-FAPI-FUSCC-07), for use in both preclinical and clinical settings. Preclinical evaluations were conducted to assess the stability and partition coefficient of [F]F-FAPI-FUSCC-07. Experiments involving human glioma U87MG cells demonstrated its cellular uptake and inhibitory properties.
View Article and Find Full Text PDFQuant Imaging Med Surg
January 2025
Department of Nuclear Medicine, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.
Background: Accurately differentiating hepatocellular carcinoma (HCC) from intrahepatic cholangiocarcinoma (ICC) is essential for therapeutic decision-making. This study aimed to explore the value of Fluor 18 (F)-conjugated fibroblast-activation protein inhibitor (FAPI-42) positron emission tomography-computed tomography (PET/CT) in distinguishing HCC from ICC preoperatively.
Methods: Patients with suspected intrahepatic lesions who underwent F-FAPI-42 PET/CT were retrospectively assessed and placed into an HCC group and an ICC group based on postoperative pathology.
Mol Imaging Biol
January 2025
Department of Nuclear Medicine, the Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, 510260, China.
Purpose: Radionuclide-labeled fibroblast activation protein inhibitor (FAPI) is an emerging tumor tracer. We sought to assess the uptake and diagnostic performance of F-FAPI-42 PET/CT compared with simultaneous 2-deoxy-2[F]fluoro-D-glucose (F-FDG) PET/CT in primary and metastatic lesions in patients with malignant digestive system neoplasms and to determine the potential clinical benefit.
Procedures: Forty-two patients (men = 30, women = 12, mean age = 56.
Eur J Nucl Med Mol Imaging
January 2025
Department of Nuclear Medicine, Nanfang Hospital, Southern Medical University, 1838 Guangzhou North Road, Guangzhou, China.
Purpose: To explore the dynamic and parametric characteristics of [F]F-FAPI-42 PET/CT in lung cancers.
Methods: Nineteen participants with newly diagnosed lung cancer underwent 60-min dynamic [F]F-FAPI-42 PET/CT. Time-activity curves (TAC) were generated for tumors and normal organs, with kinetic parameters (K, K, K, K, K) calculated.
Gastroenterol Rep (Oxf)
December 2024
Department of General Surgery (Colorectal Surgery), The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, P. R. China.
Background: Colorectal cancer is the third-most common type of cancer. When peritoneal metastasis (PM) develops, diagnosing metastatic lesions is difficult and the prognosis is poor. This study aimed to compare the value of fluorine-18 fibroblast activation protein-specific inhibitor (F-FAPI-42) and fluorine-18 fluorodeoxyglucose (F-FDG) positron emission tomography/computed tomography (PET/CT) for detecting PM of colorectal cancer and to guide clinical decision-making.
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