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初级侧面硬化症的下丘脑缩,通过基于卷积神经网络的自动细分来评估.

Jan Kassubek1, Francesco Roselli1,2, Simon Witzel1

  • 1Dept. of Neurology, University of Ulm, Oberer Eselsberg 45, 89081, Ulm, Germany.

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概括

初级侧面硬化症 (PLS) 和肌缩性侧面硬化症 (ALS) 患者与对照人群相比,显示下丘脑体积减少. 这项研究发现,在PLS和ALS中,尽管临床表现不同,但下丘脑体积减少程度相似.

关键词:
骨髓缩侧面硬化症 (ALS) 是一种下丘脑的下丘脑是什么意思磁共振成像是一种磁共振成像技术.代谢过程中的代谢.神经网络的神经网络的神经网络主要侧面硬化症 主要侧面硬化症测量体积的方法

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科学领域:

  • 神经科学是一个神经科学.
  • 放射学 放射学是一门学科.
  • 医疗成像医学成像

背景情况:

  • 初级侧面硬化 (PLS) 是一种缓慢进展的运动神经元疾病 (MND),主要影响上部运动神经元.
  • 肌缩侧面硬化症 (ALS),另一个MND,涉及代和异常的能量代谢,在它的进展中注意到下丘脑缩.
  • 与ALS相比,PLS的有限体重减轻表明潜在的下丘脑变化可能不那么严重,这促使进一步调查.

研究的目的:

  • 在患有PLS的患者中量化评估下丘脑体积.
  • 将PLS患者的下丘脑体积与健康对照组和患有经典ALS的患者进行比较.
  • 鉴于它们不同的临床表型,研究PLS和ALS之间的下丘脑变化的潜在差异.

主要方法:

  • 利用卷积神经网络 (CNN) 与U-Net架构用于自动细分下丘脑和内体积 (ICV).
  • 对46名PLS患者,107名健康对照患者和411名经典ALS患者的高分辨率T1加权MRI扫描进行了体积分析.
  • 通过ICV规范下丘脑体积,以解释受试者之间头部大小的差异.

主要成果:

  • 与对照组 (852 ± 77 mm3) 相比,PLS患者 (818 ± 73 mm3) 观察到显著的下丘脑体积减少.
  • 在ALS患者 (823±84mm3) 中也证实了显著的下丘脑体积减少,这与之前的研究一致.
  • 在ALS和PLS患者组之间,在组级上没有发现正常化下丘脑体积的显著差异.

结论:

  • 这项研究表明,PLS和ALS患者表现出降低的下丘脑体积.
  • 这些发现表明,在PLS和ALS中,无论它们的不同临床特征如何,下丘脑体积减少也相似.
  • 基于CNN的自动化量化提供了一种不偏见的方法,用于评估神经退行性疾病中的下丘脑体积.