Abstract
The aim of this study was to assess the diagnostic yield and complication rate of 18 F-FDG PET/CT ultrasound (US) fusion for percutaneous biopsy of FDG-avid lesions among patients with known or suspected malignancy. We describe the clinical, imaging, and histopathologic features of 36 patients who underwent percutaneous biopsy using real-time PET/CT US fusion. In addition, we review the literature on PET/CT US fusion. Using Medline, the following MeSH terms were searched and relevant citations assessed: "fusion imaging," "PET/CT fusion," "PET/CT-guided biopsy," "PET/US fusion," "ultrasound fusion," and "ultrasound fusion-guided biopsy." A total of 36 patients (15 men, 21 women) with known or suspected malignancy and prior PET/CT imaging underwent percutaneous biopsy of FDG-avid lesions using PET/CT US fusion between October 2014 and July 2020. Coregistration was achieved using General Electric LOGIQ E9 software. Adequate tissue for analysis was obtained in all 36 patients. Histologic evaluation revealed malignancy in 14 patients (38.9%) and nonneoplastic tissue in 22 patients (61.1%). No intraprocedural or postprocedural complications were recorded. Fusion of PET/CT and US for percutaneous biopsy of FDG-avid lesions can be used to achieve excellent diagnostic yield with a low risk of complications.
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