Blake Glen M, Siddique Musib, Frost Michelle L, Moore Amelia E B, Fogelman Ignac
Osteoporosis Research Unit, King's College London, Guy's Campus, London, SE1 9RT, UK,
Curr Osteoporos Rep. 2014 Dec;12(4):475-85. doi: 10.1007/s11914-014-0231-2.
The functional imaging technique of dynamic fluorine-18 labeled sodium fluoride positron emission tomography ((18)F-NaF PET) allows the quantitative assessment of regional bone formation by measuring the plasma clearance of fluoride to bone at any site in the skeleton. (18)F-NaF PET provides a novel and noninvasive method of studying site-specific bone formation at the hip and spine, as well as areas of pure cortical or trabecular bone. The technique complements conventional measurements of bone turnover using biochemical markers and bone biopsy as a tool to investigate new treatments for osteoporosis, and holds promise of a future role as an early biomarker of treatment efficacy in clinical trials. This article reviews methods of acquiring and analyzing (18)F-NaF PET scan data, and outlines a simplified approach that uses 5-minute static PET scan images combined with venous blood samples to estimate (18)F-NaF plasma clearance at multiple sites in the skeleton with a single injection of tracer.
动态氟 - 18标记的氟化钠正电子发射断层扫描((18)F - NaF PET)这一功能成像技术,能够通过测量氟化物向骨骼的血浆清除率,对全身任何部位的局部骨形成进行定量评估。(18)F - NaF PET为研究髋部和脊柱以及纯皮质骨或小梁骨区域的部位特异性骨形成提供了一种全新的非侵入性方法。该技术是对使用生化标志物和骨活检进行骨转换常规测量的补充,可作为研究骨质疏松症新疗法的工具,并且有望在临床试验中作为治疗效果的早期生物标志物发挥作用。本文回顾了获取和分析(18)F - NaF PET扫描数据的方法,并概述了一种简化方法,即通过单次注射示踪剂,使用5分钟静态PET扫描图像结合静脉血样来估计全身多个部位的(18)F - NaF血浆清除率。