Association of Regional Bone Synthetic Activities of Vertebral Corners and Vertebral Bodies Quantified Using 18F-Fluoride Positron Emission Tomography with Bone Mineral Density on Dual Energy X-ray Absorptiometry in Patients with Ankylosing Spondylitis

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ID: 114649
2020
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Abstract
We investigated whether the bone-synthetic activities of vertebral bodies or vertebral corners quantified using 18F-fluoride positron emission tomography (PET) was associated with bone mineral density (BMD) at the corresponding lumbar vertebrae in ankylosing spondylitis (AS) at each vertebra level. We analyzed 48 lumbar vertebrae in 12 AS patients who underwent 18F-fluoride PET and dual energy X-ray absorptiometry (DXA). The mean standardized uptake values (SUVmean) of the vertebral body and corners from L1 to L4 were measured using the spatially separated region of interest (ROI). The L1–L4 BMDs were calculated based on the DXA (“conventional BMD”). The BMD of the internal vertebral bodies was measured by manually drawing ROIs to represent the trabecular BMD (“alternative BMD”). After adjusting the within-patient correlation, the 18F-fluoride SUVmean of the vertebral corners but not that of vertebral bodies was significantly related with the conventional BMD of the vertebra. Otherwise, the 18F-fluoride uptake of both the vertebral and vertebral bodies was significantly related with the alternative BMD. The bone-synthetic activities of the vertebral corners may be more closely related with BMD than those of the vertebral bodies, suggesting that the effects of regional bone metabolism at the vertebral corners and bodies on BMD differ in AS.
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kim2020journalassociation Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Keunyoung Kim;Kyoungjune Pak;In-Joo Kim;Seong-Jang Kim;Dong Hyun Sohn;Aran Kim;Seung-Geun Lee;Kim, Keunyoung;Pak, Kyoungjune;Kim, In-Joo;Kim, Seong-Jang;Sohn, Dong Hyun;Kim, Aran;Lee, Seung-Geun;
Journal journal of clinical medicine
Year 2020
DOI
10.3390/jcm9082656
URL
https://www.mdpi.com/2077-0383/9/8/2656
Keywords
positron emission tomography bone density ankylosing spondylitis cortical bone cancellous bone

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