| Abstract [eng] |
SUMMARY Relevance: Variations in hepatic arterial anatomy are extremely common, with studies suggesting that more than half of the patients have one of the atypical variants. To visualize variations in arterial anatomy it is important to choose the most optimal diagnostic method that meets the needs of the patient and the medical team. Determining the course of the arteries is very important when planning complex high-risk operations and interventional procedures, for example, before performing liver transplants, liver resections, pancreatic cancer treatments, and in interventional radiology before chemoembolization, radioembolization, and intraarterial hepatic chemotherapy. The aim: To overview the data published in scientific articles about the anatomical variations of hepatic arteries and their significance in radiological diagnostics and clinical practice. Tasks: 1. To describe the anatomical variations of the hepatic arteries; 2. To summarize the data from scientific articles about anatomical variations of hepatic arteries and their significance in radiological diagnostics and clinical practice. 3. To present a clinical case of atypical hepatic arterial anatomy. Methods: Scientific articles were selected from Vilnius University subscription database "PubMed/Medline" using such search phrases as "hepatic artery" AND "anatomic" AND "variation" and "hepatic artery" AND "variation OR pattern" AND "branching OR ramification" AND frequency OR rate OR prevalence. Also, the data published in t scientific articles was searched in the publicly available data search systems “Google Scholar” and “Access Medicine”. “Notability 12.1.9”, “Adobe Systems 2024. Photoshop CC (25.6.0)”, and “Procreate (5.3.7)“, were used to prepare the original illustrations of anatomical variations. Results: Ten anatomical variations of hepatic arteries were described and illustrated with original illustrations. The information presented in scientific journals about anatomical variations of hepatic arteries and their significance in radiological diagnostics and clinical practice was analyzed. The unique clinical case of the patient was described and an original illustration is prepared. Conclusions: Anatomical variations of the hepatic arteries are a common phenomenon that is extremely important in surgery and interventional radiology. It is necessary to choose an optimal diagnostic method in order to ensure successful preoperative preparation, smooth course of the interventional procedures and to reduce the risk of postoperative complications. Keywords: hepatic arterial variations, digital subtraction angiography, computed tomography angiography, magnetic resonance angiography. |
