Assessment of atherosclerosis in multiple myeloma and smoldering myeloma patients using F-18- sodium fluoride PET/CT

JOURNAL OF NUCLEAR CARDIOLOGY(2021)

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Abstract
Background To compare the NaF uptake in the thoracic aorta and whole heart, as an early indicator of atherosclerosis, in multiple myeloma (MM) and smoldering multiple myeloma (SMM) patients with a healthy control (HC) group. Methods Forty-four untreated myeloma patients (35 MM and nine SMM) and twenty-six age and gender-matched HC subjects were collected. Each individual's NaF uptake in three parts of the aorta (AA: ascending aorta, AR: aortic arch, DA: descending aorta) and the whole heart was segmented. Average global standardized uptake value means were derived by sum of the product of each slice area divided by the sum of those slice areas. Results were reported as target to background ratio (TBR). Results There was a significant difference between the NaF uptake in the thoracic aorta of myeloma and HC groups [AA (myeloma = 1.82 +/- 0.21, HC = 1.24 +/- 0.02), AR (myeloma = 1.71 +/- 0.19, HC = 1.28 +/- 0.03) and DA (myeloma = 1.96 +/- 0.28, HC = 1.38 +/- 0.03); P-values < 0.001]. The difference in the whole heart NaF uptake between two groups was also significant (P < 0.001). Conclusions We observed a higher uptake of NaF in the thoracic aorta and whole heart of myeloma patients in comparison to the matched control group.
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Key words
Positron emission tomography, F-18-NaF, atherosclerosis, thoracic aorta, multiple myeloma, smoldering myeloma
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