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Vascular access ports were investigated to determine the retention rate of injected radiotracers during PET scan acquisition. A total of 30 ports were tested, including 3 different port models from a single manufacturer. Both 18F-fluorodeoxyglucose (FDG) and 18F-Sodium Fluoride (Na18F) contrast agents were used. Radioactivity counts and images acquired by PET was the primary means used to identify retention of radioactivity in those ports. In repeatable experiments, AngioDynamicsTM port lines including Smart PortTM CT, BioFloTM Port, and BioFloTM Dual Port exhibited radioactive contrast retention ranged from 0.86 ± 0.12 to 1.38 ± 0.23%, following an injection of 10 mL saline. These port models tested satisfy the interest to be identified procedurally for potential use in clinical Nuclear Medicine PET contrast studies.

A Study of Nuclear Medicine Contrast Retention in Vascular Access Ports