在对比度增强的CT上,门静脉合流变异:分布,IMV-合流距离,以及199名成年人的新模式
Phuong Thi Mai1, Van Trung Hoang2, Thien Thanh Thi Nguyen3
1Department of Radiology, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam.
Surgical and radiologic anatomy : SRA
|October 21, 2025
概括
本研究使用对比度增强的CT对门静脉 (PV) 合流变异进行了特征化,确定了新的配置,并测量了下等中枢静脉 (IMV) 到合流距离. 研究结果强调了识别PV变体对于安全的外科手术规划的重要性.
科学领域:
- 放射学 放射学是一门学科.
- 血管解剖学 血管解剖学
- 手术规划 手术规划
背景情况:
- 门静脉 (PV) 合流解剖学对于外科手术至关重要.
- 在PV合流的变化,特别是涉及下层中枢静脉 (IMV),可以影响手术方法.
- 这些变体的准确表征对于手术前评估至关重要.
研究的目的:
- 用对比增强计算机断层扫描 (CT) 来分类门静脉交汇变体.
- 根据变体类型,量化下半腹静脉 (IMV) 与门静脉合流之间的距离.
- 识别和报告以前未被描述的门静脉合流配置.
主要方法:
- 一个14种类型的分类方案 (Prado I-XII,加上新型 XIII-XIV) 用于标记光伏合变体.
- 为了进行距离分析,变种被分解成三个主要的排水类别 (Thomson I-III).
- 使用统计测试 (克鲁斯卡尔-瓦利斯,曼-惠特尼U) 测量和比较各类类别的IMV-to-confluence中位距离.
主要成果:
- 传统的光伏融合类型 (姆森I-III) 占大多数案例 (94.9%).
- 在2.5%的患者中发现了两种新型变异 (Types XIII-XIV).
- 在三个主要排水类别 (p < 0.001) 之间观察到IMV-to-confluence中间距离的显著差异.
结论:
- 虽然经典的门静脉合流类型是最常见的,但存在罕见和新的配置.
- 测量到的IMV-to-confluence距离与IMV排水路径有很大差异.
- 在手术前对PV变体进行CT检查对于有信息的手术规划和患者安全至关重要.
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