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Updated: Jan 12, 2026

Measurement of the Hepatic Venous Pressure Gradient and Transjugular Liver Biopsy
Published on: June 18, 2020
The hepatic arterial system variations: A systematic review with meta-analysis
Adrian Balcerzak1, George Triantafyllou2, Fotis Demetriou3
1Department of Clinical Anatomy, Mazovian Academy in Płock, Plock, Poland.
Hepatic artery (HA) variations are common, affecting about one-third of individuals. Understanding these anatomical differences is vital for safe abdominal surgeries and accurate imaging interpretation.
Area of Science:
- Anatomy
- Radiology
- Surgical Planning
Background:
- The hepatic artery (HA) system is critical for liver and abdominal organ blood supply.
- Knowledge of HA anatomical variations is essential for anatomists, radiologists, and surgeons.
- Existing classification systems lack comprehensive meta-analysis of the entire HA system.
Purpose of the Study:
- To conduct a systematic review and meta-analysis of hepatic artery anatomical variations.
- To determine the pooled prevalence of different HA variants.
- To provide a comprehensive overview of HA anatomy for clinical application.
Main Methods:
- Systematic review and meta-analysis adhering to PRISMA 2020 guidelines.
- Extensive literature search across major scientific databases.
- Pooled prevalence calculation using random-effects models and subgroup analyses.
Main Results:
- Analysis of 85 studies involving 47,732 patients.
- Typical HA anatomy observed in 69.96% of cases; 30.04% showed variations.
- The most frequent variant involved the right hepatic artery (RHA), with 11.38% prevalence.
Conclusions:
- Hepatic artery anatomical variations are prevalent, impacting approximately one-third of the population.
- Findings are critical for surgical planning and risk reduction in hepatobiliary procedures.
- Further research is needed to refine classifications and incorporate detailed morphometric and gender-specific data.
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