对比剂和T1权重的MRI之间间隔大脑上腺核胆固醇缺陷:一个单一病例的观察
Marco Moscatelli1,2, Chiara Benzoni3, Fabio M Doniselli1
1Neuroradiology Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, Via Celoria 11, 20133, Milan, Italy.
European radiology experimental
|October 2, 2023
概括
确定MRI对比度增强在上腺核细胞衰竭 (ALD) 中的最佳时间是至关重要的. 在注射后至少10分钟获得2D T1加权梯度回声序列有助于最大限度地减少ALD疾病活动的错误负面.
科学领域:
- 神经学 神经学
- 放射学 放射学是一门学科.
- 医疗成像医学成像
背景情况:
- 磁力共振成像上对比度增强 (CE) 是对上腺白细胞缩 (ALD) 疾病活性的一个关键标志物.
- 在ALD中对比度管理和图像采集的最佳时间仍然不确定,可能导致假阴性结果.
研究的目的:
- 确定对比剂注射和MRI采集之间的最佳延迟,以检测ALD中的疾病活性.
- 为了比较2D和3DT1加权序列在ALD中对比度增强的灵敏度.
主要方法:
- 在ALD患者中,在gadobutrol注射后36分钟内获得序列2D和3DT1加权梯度回声MRI序列.
- 评估信号强度的变化随着时间的推移在感兴趣的区域来评估对比度增强.
- 在所有成像序列中使用3特斯拉磁铁.
主要成果:
- 3D 序列显示没有明确的对比度增强.
- 2D 序列显示了明显的对比度增强,从6分钟开始,信号强度在12分钟达到峰值.
- 建议在注射后推迟大约10分钟2D序列,以最大限度地减少虚假阴性.
结论:
- 在对比剂注射后至少10分钟获得的对比度增强的2D T1加权梯度回声MRI序列可以改善检测ALD疾病活性.
- 这种时间优化可以帮助减少ALD成像中的假负结果.
- 准确评估ALD活动对于患者的管理和治疗选择至关重要.
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