Non Invasive Imaging Methods for Detecting PA：a Clinical PET Study of 18F-Pentixather

Primary aldosteronism (PA) is the most common endocrine cause of hypertension. 68Ga-pentixafor PET/CT possesses a relatively high sensitivity and specificity for Aldosterone producing adenoma (APA) detection. However, 68Ga is usually eluted from a 68Ge-68Ga generator, only a small amount of isotopes can be achieved once time. \[18F\]AlF-chelation is a promising strategy that would solve these issues. 18F labeled Pentixafor-Based Imaging Agent(\[18F\]AlF-NOTA-Pentixather) has been reported by Andreas Poschenrieder. \[18F\]AlF-NOTA-Pentixather displayed high and CXCR4-specific in vivo uptake in Daudi xenografts (13.9%±0.8% injected dose per gram \[ID/g\] at 1 hour post injection\[p.i.\]). But to date 18F-Pentixather has not been studied in humans. In this program the investigators will estimate the radiation dosimetry of \[18F\]AlF-NOTA-Pentixather, evaluate the sensitivity and specificity of the \[18F\]AlF-NOTA-Pentixather as a probe for APA.