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| 美国放射学院（ACR)关于定量CT( QCT)骨密度测量 操作指南 |
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| DOI： |
| 中文关键词: 计算机断层扫描 骨密度测量 骨质疏松症 |
| 英文关键词:Computed Tomography ( CT) Bone mineral density Osteoprosis |
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| 中文摘要: |
| 随着螺旋CT技术的进步和定量CT( QCT)分析技术的发展，定量CT( QCT)骨密度测量的临床应用越来越引起大家的 重视。美国放射学院(ACR)组织专家起草，并于2008年颁布了 ACR定量CT( QCT)骨密度测量操作指南。该指南的目的在 于制定临床工作中QCT检查实施和诊断的参考标准，包括其设备要求、质量控制、适用人群、临床适应症和禁忌症，医生和技 术员资质要求，以及QCT测量规范和报告规范。该指南提出了对绝经后妇女和50岁及以上男性的QCT诊断参考标准。建议 脊柱QCT采用BMD绝对值诊断，即BMD >120 mg/cm3诊断为骨量正常，BMD 120 mg/cm3 -80 mg/cm3诊断为低骨量，BMD < 80 mg/cm3诊断为骨质疏松。QCT髋关节测量的T值可以根据WHO DXA标准来诊断骨质疏松。该指南对我国的QCT临 床应用具有指导意义。 |
| 英文摘要: |
| With the technique advance in multi -detector CT and quantitative computed tomography (QCT)，the clinical application of QCT draws increasing attention. The American of college radiology (ACR) QCT panelists developed and published this ACR Practice Guideline for the Performance of Quantitative Computed Tomography ( QCT) Bone Densitometry (Resolution 33 ) in 2008. This guide outlined the principles of performing high quality QCT， include equipment specifications， equipment quality control， indications， contraindications，qualification of physicians and operators，specifications of the examination and documentation . For the diagnosis of osteoporosis in postmenopausal women and men > 50，this guide recommended that QCT spine BMD > 120 mg/cm3 as normal，BMD 120 mg/cm3 -80 mg/cm3 as osteopenia，and BMD <80 mg/cm3 as osteoporosis. WHO DXA criteria were applied to QCT hip BMD measurement. This guide is very instructive for us to use QCT in China. |
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