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首页> 外文期刊>Journal of Clinical Ultrasound: JCU >Flow reversal in the right anterior branch of the portal vein: 'bicolor portal vein' color Doppler analysis.
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Flow reversal in the right anterior branch of the portal vein: 'bicolor portal vein' color Doppler analysis.

机译：门静脉右前支的血流逆转：“双色门静脉”彩色多普勒分析。

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摘要

The purpose of this study is to describe a phenomenon of bidirectional flow, "bicolor portal vein" (BPV), within the right anterior branch of the portal vein (RAPV), with color Doppler imaging (CDI). We prospectively studied with CDI the intrahepatic portal vein and its branches in 316 consecutive patients in search of areas of nonlaminar flow within the RAPV. Forty patients were excluded from the study due to varied conditions that precluded an accurate CDI study. A prospective design allowed us to record the frequency of appearance, systematically measure a set of parameters in each patient, and establish different groups for comparison. We found an area of BPV within the RAPV in six patients. Five of them had a history of liver disease (8.2% of the patients with known liver disease). The BPV was consistently portrayed as a well-defined blue oval-shaped area of flow reversal attached to the medial side of the RAPV immediately before its bifurcation, suggesting a rotary motion of blood. All six patients presented a transverse diameter of the RAPV significantly larger than the rest of the patients (p < 0.05). Furthermore, blood flow measurements within the RAPV of the six patients with BPV were found to be significantly higher when compared with the rest of the patients (< 0.05). Knowledge of the possible presence of a BPV within the RAPV can prevent diagnostic confusion with reversal of flow, a truly pathologic condition related to liver disease.
机译：这项研究的目的是用彩色多普勒成像（CDI）描述门静脉右前分支（RAPV）内的双向流动现象，即“双色门静脉”（BPV）。我们用CDI前瞻性研究了316例连续患者的肝内门静脉及其分支，以寻找RAPV内的非层流区域。由于条件不同，有40名患者被排除在研究之外，无法进行准确的CDI研究。前瞻性设计使我们能够记录出现的频率，系统地测量每个患者的一组参数，并建立不同的组进行比较。我们在六名患者的RAPV中发现了BPV区域。他们中有五个有肝病史（占已知肝病患者的8.2％）。 BPV始终被描绘为紧接在RAPV分叉前的清晰定义的蓝色椭圆形流动逆转区域，附着在RAPV的内侧，表明血液发生旋转运动。所有六名患者均表现出RAPV的横向直径明显大于其余患者（p <0.05）。此外，发现六名BPV患者的RAPV内的血流测量值显着高于其余患者（<0.05）。知道RAPV中可能存在BPV可以预防血流逆转（与肝病相关的真正病理状况）的诊断混乱。

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