Normal Main Portal Vein Diameter - Is the Upper Limit Of 13 Mm Low?

Er, Hale Çolakoğlu; Konduk, Buğra Tolga

doi:10.5152/eurjther.2019.19092

Cited by 2 publications

(3 citation statements)

References 6 publications

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“…The present study also demonstrated that a small diameter of the main portal vein and large diameter of the portosystemic shunt were background factors contributing to reversed portal flow. Two large retrospective studies found that in healthy patients the mean diameters of the main portal vein on CT were 15.5 mm 35 and 15.0 mm 36 . In our study, main portal veins in patients with reversed portal flow (9.48 mm) were also significantly smaller than in patients with forward portal flow (12.5 mm).…”

Section: Discussionsupporting

confidence: 52%

“…Two large retrospective studies found that in healthy patients the mean diameters of the main portal vein on CT were 15.5 mm 35 and 15.0 mm. 36 In our study, main portal veins in patients with reversed portal flow (9.48 mm) were also significantly smaller than in patients with forward portal flow (12.5 mm). On US, patients with splenorenal shunt had Fisher's exact probability test was used for univariate analysis and logistic regression analysis with stepwise selection for multivariate analysis.…”

Section: Reversed Flow (N = 17) Psupporting

confidence: 50%

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Identification of reversed portal flow on 4DCT and of factors contributing to reversed portal flow in patients with liver cirrhosis and portosystemic shunt before interventional radiology procedures

Kageyama¹,

Yamamoto²,

Jogo³

et al. 2022

Hepatology Research

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Aim Patients with liver cirrhosis and portosystemic shunt occasionally develop reversed portal flow in the portal venous system. The factors contributing to reversed portal flow in these patients remain unclear. The aim of this study was to identify factors contributing to reversed portal flow in patients with portosystemic shunts based on four‐dimensional computed tomography (4DCT), which visualized flow dynamics in the portal venous system. Methods Data from 34 consecutive patients with portosystemic shunts who had undergone 4DCT before interventional radiology procedures were retrospectively investigated in this study. Uni‐ and multivariate analyses were performed to identify factors contributing to reversed portal flow. Results Flow dynamics could be visualized on 4DCT in 32 of the 34 patients. Fifteen patients had forward portal flow; 17 had reversed portal flow. The main portal, splenic, and superior mesenteric veins displayed reversed portal flow in five, 12, and five vessels, respectively. Portosystemic shunt originating from splenic and superior mesenteric veins, worse albumin‐bilirubin score, and small main portal vein diameter were significant factors contributing to reversed portal flow in both univariate (p = 0.049, p = 0.027, and p = 0.002) and multivariate (odds ratio [OR] 6.345, p = 0.012; OR 4.279, p = 0.039; and OR 5.516, p = 0.019) analyses. Conclusions The reversed portal flow was visualized on 4DCT. Portosystemic shunt originating distant to the liver, worse albumin‐bilirubin score, and small diameter of the main portal vein were factors contributing to reversed flow in the portal venous system.

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Section: Discussionsupporting

confidence: 52%

Section: Reversed Flow (N = 17) Psupporting

confidence: 50%

Identification of reversed portal flow on 4DCT and of factors contributing to reversed portal flow in patients with liver cirrhosis and portosystemic shunt before interventional radiology procedures

Kageyama¹,

Yamamoto²,

Jogo³

et al. 2022

Hepatology Research

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show abstract

“…Patriquin et al found a linear increase in the diameter of portal vein with increasing age and weight. Although there are some studies evaluating portal vein diameter via CT in adult subjects, there is only one published study conducted by Unlu et al demonstrating portal vein and splenic vein diameters in children by CT (7,9,10). They provided portal vein and splenic vein diameters according to age group by CT, however, in the current study we evaluated the diameters of renal vein, VCI, and SMV in addition to the splenic vein and portal vein diameters with a larger patient group.…”

Section: Discussionmentioning

confidence: 99%

Normative Dimensions of Portal and Systemic Intraabdominal Veins of Children on CT

Bayramoğlu

Ersoy

Ayyildiz

et al. 2023

Preprint

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Background: Chronic liver diseases cause portal hypertension resulting in portal vein enlargement. Vascular compression syndromes and the status of hydration of the body are determined by vein diameters. Objective: It is aimed to provide normative values of the major intraabdominal portal and systemic vein diameters in several age groups of children on contrast-enhanced abdominal computed tomography. Materials and Methods: 800 pediatric patients (468 male, 332 female) who were referred to the Radiology Department of our institution were enrolled. Age groups included 0-2, 3-5, 5-10, 10-15, and 15-18 years of life. The largest diameter of the major portal vein, right and left portal vein branches, superior mesenteric and splenic veins, right and left renal vein and vena cava inferior were measured. The ratios were also calculated right to left portal vein, right to the left renal vein and portal vein to vena cava inferior for age groups. Descriptive statistics of the data were expressed as means with standard deviation. The percentiles of vein diameters were calculated for all age groups. Differences in mean diameters among ages were compared with the ANOVA test. Differences among gender groups were analysed with independent samples t-test. Results: No statistically significant difference was found among gender groups (p:0.6). There have been statistically significant differences in mean diameters among consecutive age groups (p:0.001) for splanchnic and renal venous system and also vena cava. There has been a statistically significant positive correlation (p:0.001; r:0.5-0.79) of diameters with ages. There was no statistically significant difference between the mean ratios of vein diameters by age groups. Conclusions: Intraabdominal major vein diameters were not affected by gender. We provided a diameter range for several age groups. Age would be a reliable parameter to predict the diameters of major veins.

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Normal Main Portal Vein Diameter - Is the Upper Limit Of 13 Mm Low?

Cited by 2 publications

References 6 publications

Identification of reversed portal flow on 4DCT and of factors contributing to reversed portal flow in patients with liver cirrhosis and portosystemic shunt before interventional radiology procedures

Identification of reversed portal flow on 4DCT and of factors contributing to reversed portal flow in patients with liver cirrhosis and portosystemic shunt before interventional radiology procedures

Normative Dimensions of Portal and Systemic Intraabdominal Veins of Children on CT

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