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Updated: Jul 15, 2026
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Anatomical Reconstructions of the Human Cardiac Venous System using Contrast-computed Tomography of Perfusion-fixed Specimens
Published on: April 18, 2013
[Hepatic arterial vascular anatomy and its variants]
M De Santis1, P Ariosi, G F Calò
1Dipartimento di Scienze Mediche, Oncologiche e Radiologiche dell'Università , Sezione di Scienze Radiologiche, Modena e Reggio Emilia.
La Radiologia Medica
|January 10, 2001
Summary
Hepatic artery anatomy shows significant variation in cancer patients, with typical anatomy in 52%. Understanding these anatomical variants is crucial for successful interventional angiographic procedures.
Area of Science:
- Vascular anatomy
- Interventional radiology
- Oncologic imaging
Context:
- Hepatic artery anatomical variations can impact angiographic procedures.
- Previous classifications, like Michels' (1955), provide a framework for understanding these variations.
- The prevalence of these variants in cancer patients undergoing angiography is not fully characterized.
Purpose:
- To investigate the frequency of hepatic artery anatomical variants in patients undergoing angiography for liver tumors.
- To compare the observed frequencies with established classifications.
- To highlight the importance of recognizing these variants for interventional procedures.
Summary:
- A review of 150 liver tumor angiograms revealed that typical hepatic artery anatomy (Type I) was present in 52% of patients.
- Anatomical variants were observed in 48% of cases, with specific frequencies for types II, III, IV, V, VI, VII, and IX.
- A notable 14.7% of patients exhibited vascular anatomy not fitting Michels' classification, potentially influenced by neoplastic neovascularization.
Impact:
- The findings underscore that "typical" hepatic artery anatomy is less common than previously assumed.
- Accurate knowledge of hepatic artery variants is essential for interventional radiologists to optimize procedural planning and material selection.
- This study contributes to a better understanding of vascular variations in the context of liver cancer treatment.
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