jugular bulb ASL-MRI高强度和严重的内静脉狭窄:神经成像中的潜在陷
Thomas R Geisbush1, Siddhant S Dhawan1, Periakaruppan V Manickam1
1Division of Neuroimaging and Neurointervention, Department of Radiology, Stanford University School of Medicine, Stanford, USA.
Neuroradiology
|April 24, 2025
概括
球球中的人工MRI信号 (JB-ASL[+]) 可以模仿严重的疾病. 严重的关静脉压缩 (SJVC) 可能有助于这种事物,有助于精确的神经成像诊断.
科学领域:
- 神经辐射学神经辐射学
- 血管成像 血管成像
- 神经科学是一个神经科学.
背景情况:
- 偶然的人工MRI动脉旋转标记 (ASL-MRI) 在左球球 (JB-ASL[+]) 的高强度信号提出了诊断挑战,可能模仿长期动脉静脉.
- 虽然"良性关静脉逆流"是已知的原因,但关静脉压缩 (SJVC) 在JB-ASL(+) 信号发生中的作用仍然未被评估.
研究的目的:
- 为了研究由SJVC引起的内静脉 (IJV) 狭窄的百分比与JB-ASL ((+) 信号的强度之间的关联.
- 为了确定SJVC是否有助于喉球的ASL-MRI中观察到的人工高强度信号.
主要方法:
- 从30名患有JB-ASL的患者和30名没有JB-ASL的年龄和性别匹配的对照患者的MRI扫描的回顾性审查.
- 在IJV中定量SJVC百分比狭窄,并评估JB-ASL的信号强度.
主要成果:
- 患有严重SJVC (>75%的内关节缩) 的JB-ASL患者在ASL-MRI超强度的百分比增加明显高于没有严重SJVC的患者 (p=0.026).
- 这表明,标记的静脉血液近邻到严重的SJVC的逆向捕获可以突出JB-ASL ((+) 信号.
结论:
- 严重的SJVC是人工JB-ASL ((+) 信号的一个新的贡献因素.
- 了解SJVC的作用对于避免误解JB-ASL ((+) 作为病理发现至关重要,从而防止神经成像误诊.
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