Vascular uptake on 18F-sodium fluoride positron emission tomography: precursor of vascular calcification?

Annemarie M. den Harder*, Jelmer M. Wolterink, Jonas W. Bartstra, Wilko Spiering, Sabine R. Zwakenberg, Joline W. Beulens, Riemer H.J.A. Slart, Gert Luurtsema, Willem P. Mali, Pim A. de Jong

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Background: Microcalcifications cannot be identified with the present resolution of CT; however, 18F-sodium fluoride (18F-NaF) positron emission tomography (PET) imaging has been proposed for non-invasive identification of microcalcification. The primary objective of this study was to assess whether 18F-NaF activity can assess the presence and predict the progression of CT detectable vascular calcification. Methods and Results: The data of two longitudinal studies in which patients received a 18F-NaF PET-CT at baseline and after 6 months or 1-year follow-up were used. The target to background ratio (TBR) was measured on PET at baseline and CT calcification was quantified in the femoral arteries at baseline and follow-up. 128 patients were included. A higher TBR at baseline was associated with higher calcification mass at baseline and calcification progression (β = 1.006 [1.005-1.007] and β = 1.002 [1.002-1.003] in the studies with 6 months and 1-year follow-up, respectively). In areas without calcification at baseline and where calcification developed at follow-up, the TBR was.11–.13 (P < .001) higher compared to areas where no calcification developed. Conclusion: The activity of 18F-NaF is related to the amount of calcification and calcification progression. In areas where calcification formation occurred, the TBR was slightly but significantly higher.

Original languageEnglish
Article numbers12350-020-02031-5
JournalJournal of Nuclear Cardiology
Volume2020
DOIs
Publication statusPublished - 23 Jan 2020

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