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使用4D流MRI测量Splanchnic血液动力学参数可以诊断严重的门口高血压

Octavia Bane^1,2, Amine Geahchan^3,4, Daniel Stocker^3,4,5

¹Department of Diagnostic, Molecular and Interventional Radiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA. octavia.bane@mountsinai.org.

European radiology

|July 15, 2025

概括

四维流动MRI精确诊断严重的门性高血压 (PH),并预测慢性肝病患者的肝脏衰退. 这种非侵入性技术在严重PH检测方面表现出色,在预测未来肝脏并发症方面表现良好.

科学领域:

医疗成像医学成像
心血管成像 - 心血管成像
肝病学肝病学是一种肝病学.

背景情况:

门性高血压 (PH) 是慢性肝病的一个关键并发症,增加了出血,失补偿和死亡的风险.
准确诊断严重PH (HVPG≥12 mmHg) 和预测肝脏衰竭对于患者管理至关重要.
目前的PH诊断方法可能具有侵入性,因此需要开发非侵入性的替代方法.

研究的目的:

为了评估严重PH的4D流MRI衍生出的splanchnic血液动力学参数的诊断准确性.
评估4D流MRI参数在患有慢性肝病的患者中预测未来肝脏脱补偿的能力.

主要方法:

一项前性单一中心研究,涉及50名患有慢性肝病的患者,接受横肝活检和HVPG测量.
腹部4D流动MRI采用原型序列后的gadoxetic酸注射获得.
主要支柱状血管和大动脉的手动细分,然后进行定量血液动力学分析.

主要成果:

4D流动MRI参数显示了严重PH的高诊断性能,乳干峰值速度 (AUC=0.90) 和上半腹静脉面积 (AUC=0.88) 是关键指标.
结合了乳干峰值速度和上层介质静脉流动的后勤回归模型,在严重的PH检测中达到0.95的AUC (100%的灵敏度,89%的特异性).
肝脏和脏动脉区域,以及乳干和上层中枢静脉流动,在预测肝脏不补偿方面表现良好 (AUC范围从0.70到0.74).

结论:

使用4D流式MRI的Splanchnic血液动力学测量为严重的门门高血压提供了出色的诊断性能.
4D流式MRI显示,在患有慢性肝病的患者中,预测肝脏衰退的潜力很好.
4D流式MRI可以整合到肝硬化患者的常规临床方案中,提供一种非侵入性的诊断和预后工具.

关键词:

磁共振成像技术磁共振成像技术门口高血压的高血压.斯普兰尼克的循环循环.

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