Evidence map›Paper›PMID 42697434›Full record

ArticleJournal of vascular surgery. Venous and lymphatic disorders2026

Pelvic venous disorders: Objective hemodynamic signature from quantitative two-dimensional phase-contrast magnetic resonance imaging.

Shih-Chung Wang, Chen-Yu Li, Chih-Chen Kao, Yin-Chen Hsu, Chung-Yuan Lee, Teng-Yao Yang, Sheng-Ya Chen, Yen-Hsi Lai, Yu-Hui Lin, Min Yi Wong and 2 more

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Article in Journal of vascular surgery. Venous and lymphatic disorders, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed
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1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

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PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors.

Shih-Chung WangDepartment of Diagnostic Radiology, ChiaYi Chang Gung Memorial Hospital, Chiayi, Taiwan; College of Medicine, Chang Gung University, Taoyuan, Taiwan; Department of Medical and Radiology, Shu-Zen Junior College of Medicine and Management, Kaohsiung, Taiwan.
Chen-Yu LiDepartment of Finance, National Taichung University of Science and Technology, Taichung, Taiwan.
Chih-Chen KaoCollege of Medicine, Chang Gung University, Taoyuan, Taiwan; Division of Thoracic and Cardiovascular Surgery, ChiaYi Chang Gung Memorial Hospital, Chiayi, Taiwan.
Yin-Chen HsuDepartment of Diagnostic Radiology, ChiaYi Chang Gung Memorial Hospital, Chiayi, Taiwan; College of Medicine, Chang Gung University, Taoyuan, Taiwan.
Chung-Yuan LeeCollege of Medicine, Chang Gung University, Taoyuan, Taiwan; Department of Obstetrics and Gynecology, ChiaYi Chang Gung Memorial Hospital, Chiayi, Taiwan.
Teng-Yao YangCollege of Medicine, Chang Gung University, Taoyuan, Taiwan; Department of Medical and Radiology, Shu-Zen Junior College of Medicine and Management, Kaohsiung, Taiwan; Department of Cardiology, ChiaYi Chang Gung Memorial Hospital, Chiayi, Taiwan.
Sheng-Ya ChenCollege of Medicine, Chang Gung University, Taoyuan, Taiwan; Division of Thoracic and Cardiovascular Surgery, ChiaYi Chang Gung Memorial Hospital, Chiayi, Taiwan.
Yen-Hsi LaiCollege of Medicine, Chang Gung University, Taoyuan, Taiwan; Department of Finance, National Taichung University of Science and Technology, Taichung, Taiwan; Division of Thoracic and Cardiovascular Surgery, ChiaYi Chang Gung Memorial Hospital, Chiayi, Taiwan.
Yu-Hui LinCollege of Medicine, Chang Gung University, Taoyuan, Taiwan; Department of Finance, National Taichung University of Science and Technology, Taichung, Taiwan; Division of Thoracic and Cardiovascular Surgery, ChiaYi Chang Gung Memorial Hospital, Chiayi, Taiwan.
Min Yi WongCollege of Medicine, Chang Gung University, Taoyuan, Taiwan; Department of Finance, National Taichung University of Science and Technology, Taichung, Taiwan; Division of Thoracic and Cardiovascular Surgery, ChiaYi Chang Gung Memorial Hospital, Chiayi, Taiwan.
Chien-Wei ChenDepartment of Diagnostic Radiology, ChiaYi Chang Gung Memorial Hospital, Chiayi, Taiwan; College of Medicine, Chang Gung University, Taoyuan, Taiwan.
Yao-Kuang HuangCollege of Medicine, Chang Gung University, Taoyuan, Taiwan; Department of Finance, National Taichung University of Science and Technology, Taichung, Taiwan; Division of Thoracic and Cardiovascular Surgery, ChiaYi Chang Gung Memorial Hospital, Chiayi, Taiwan; Division of Thoracic and Cardiovascular Surgery, Chiayi Hospital, MOHW, Chiayi, Taiwan. Electronic address: yaokuang@gmail.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThe lack of objective hemodynamic criteria for diagnosing pelvic venous disorders (PeVD) limits interdisciplinary consensus among vascular surgery, radiology, phlebology, and gynecology societies. We applied noncontrast two-dimensional phase-contrast magnetic resonance imaging (2D PC-MRI; QFlow; Medis Medical Imaging Systems B.V.) to quantify pelvic-lower-limb venous flow and assess diagnostic performance.

methodsA retrospective cross-sectional study was conducted in 428 women who underwent 2D PC-MRI between 2017 and 2024. Participants included PeVD (n = 138), healthy controls (n = 39), and symptomatic women without PeVD (n = 251). An additional subset of symptomatic women with PeVD who underwent venous intervention (n = 26) was analyzed. Hemodynamic parameters included stroke volume (SV), mean flux (MF), stroke distance (SD), mean velocity (MV), and ankle interstitial pixel-shift signals.

resultsPatients with PeVD demonstrated a consistent hemodynamic signature marked by increased central flow, reduced superficial flow, and left gonadal vein (LGV) reflux. Compared with healthy controls, patients with PeVD had higher right external iliac vein, SV, and MF, lower left great saphenous vein (GSV), SV, and MF, and pronounced LGV abnormalities (SV, 1.29 vs 0.54 mL; MF, 1.50 vs 0.60 cm

conclusionsNoncontrast 2D PC-MRI yields objective assessment of morphology and segment-specific hemodynamics in lower-body venous system. LGV reflux and GSV hypoflow are the most informative markers of PeVD.

Indexed as

LeakMRINoncontrastPelvic congestionPeVDPhase contrastVenous disease

Identifiers

PMID42697434
PMCPMC13673354

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.