在磁共振成像中使用不同的评价尺度对腰椎前狭窄症的分类中,观察者之间的变化
José Sá Silva1, Ana Pereira2, Vasco Abreu2
1Department of Neuroradiology, Centro Hospitalar Universitário de Santo António, Unidade Local de Saúde de Santo António, Porto, Portugal. jose.msas.silva@gmail.com.
概括
在MRI上进行腰椎前狭窄的读者间协议因尺度而异. 较简单的尺度显示出更好的协议,但总体而言,低的协议表明需要改进培训和共识.
科学领域:
- 放射学 放射学是一门学科.
- 医疗成像医学成像
- 脊柱外科手术 脊柱外科手术
背景情况:
- 通过MRI评估腰椎退化,这取决于读者之间的变化.
- 评估前性变化的变化可能会影响临床相关性.
- 需要标准化的标准来改善读者同意.
研究的目的:
- 通过使用不同的评分表来评估腰椎前狭窄症的读者间协议.
- 为了比较二分法与多级尺度的性能.
- 确定影响评估脊髓神经根损害的共识因素.
主要方法:
- 12个阅读器对50名患者的腰椎脊柱核磁共振成像进行了评估.
- 用四种不同的尺度来评估前狭窄症.
- 弗莱斯的卡帕系数是用来衡量读者之间的一致性.
主要成果:
- 通过二分法尺度 (k=0.439) 实现了适度的协议.
- 在多等级尺度 (k=0.295-0.311) 中观察到较低的一致性.
- 对极端狭窄水平 (没有或最大压缩) 的一致性更高.
结论:
- 尺度的选择显著影响腰椎前狭窄症的读者间协议.
- 不同的尺度表现出比复杂的尺度更高的可靠性.
- 加强培训和达成共识对于提高诊断准确性至关重要.
相关概念视频
01:24Magnetic Resonance Imaging
Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...
01:27Imaging Studies IV: Magnetic Resonance Imaging
Introduction:Magnetic Resonance Imaging, or MRI, can include a specialized imaging technique of the urinary system known as Magnetic Resonance Urography (MRU). This radiation-free technique uses strong magnetic fields and radio waves to produce detailed images with the help of a computer. MRU is particularly effective for visualizing fluid-filled structures like the kidneys, ureters, and bladder.Applications of MRI in the Genitourinary SystemKidneys and Ureters: MRI detects tumors, cysts,...