通过非对比与对比增强的MRI评估的老年患者的显著更高的静脉液协议:一项初步研究
Shinji Naganawa1, Rintaro Ito1, Yutaka Kato1
1Department of Radiology, Nagoya University Graduate School of Medicine, Nagoya Aichi, Japan.
概括
使用MRI分类内淋巴液 (EH) 的协议因年龄和位置而有所不同. 老年患者对非对比的MRI表示更好的同意,而年轻患者由于潜在的误解需要谨慎.
科学领域:
- 放射学 放射学是一门学科.
- 医疗成像医学成像
- 耳鼻喉科 耳鼻喉科 耳鼻喉科
背景情况:
- 内淋巴水 (Endolymphatic hydrops,简称EH) 是一种影响内耳的疾病,通常使用MRI诊断.
- HYDROPS (积极内淋巴信号的反向图像和积极外淋巴信号的本地图像的HYbriD) 技术提供了非对比和对比增强的MRI序列.
- 评估这些技术之间的一致性和患者年龄的影响对于准确诊断至关重要.
研究的目的:
- 调查非对比和对比增强的HYDROPSMRI技术之间的内淋巴体水 (EH) 分级的协议.
- 为了澄清患者年龄对两种MRI方法一致性的影响.
主要方法:
- 从12名疑似EH患者的24个耳朵进行了回顾性分析.
- 患者接受了非对比和对比后4小时的3TMRI.
- 在EH评分中使用了纳卡希马级别;通过加权的科恩卡帕 (κ) 评估一致性,并按年龄分别分析子组.
主要成果:
- 总体而言,非对比和对比增强方法之间的公平协议,无论是尾 (κ = 0.343) 和前庭 (κ = 0.398).
- 与年龄相关的前庭协定的显著差异 (P = 0.005):老年患者的实质性协议 (κ = 0.795),年轻患者的轻微协议 (κ = 0.113).
- 非对比方法显示,对比度与噪声比率明显低于对比度增强方法.
结论:
- 对于EH评估的MRI协议取决于位置 (耳与前庭) 和患者的年龄.
- 老年患者表现出更高的一致性,这表明与年龄相关的生理变化有助于非对比可视化.
- 建议小心对年轻的患者,因为可能会高估前体EH和低估耳EH与非对比的MRI.
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