Angiographic considerations in patients undergoing liver-directed therapy

Area of Science:

• Interventional Radiology
• Vascular Anatomy
• Hepatobiliary Medicine

Background:

• Liver-directed therapies are advancing rapidly, necessitating a deeper understanding of hepatic arterial anatomy.
• The mesenteric system, especially the hepatic arterial bed, exhibits significant anatomical variation.
• Accurate presurgical planning, catheterization, and transarterial therapies depend on this anatomical knowledge.

Purpose of the Study:

• To provide historical perspective on angiographic aspects of liver-directed therapy.
• To discuss normal hepatic arterial anatomy, common variants, and perfusion changes in liver tumors.
• To optimize the safety and efficacy of liver-directed therapies using percutaneous techniques.

Main Methods:

• Review of angiographic literature and clinical experience.
• Analysis of normal hepatic arterial anatomy and common variants.
• Discussion of factors influencing regional hepatic perfusion in the presence of liver tumors.

Main Results:

• Hepatic arterial anatomy demonstrates high variability, impacting therapeutic interventions.
• Understanding regional hepatic perfusion is essential for optimizing drug delivery and treatment outcomes.
• Percutaneous techniques can enhance the safety and efficacy of transarterial liver therapies.

Conclusions:

• Detailed knowledge of hepatic arterial anatomy and perfusion is vital for successful liver-directed therapies.
• Anatomical variations require careful consideration for personalized treatment planning.
• This review synthesizes experience from over 500 transarterial liver-directed therapy cases.