Anatomical variations of the celiac trunk and hepatic arterial system: an analysis using multidetector computed tomography angiography

• Main Authors: Severino Aires Araujo Neto, Henrique Almeida Franca, Carlos Fernando de Mello Júnior, Eulâmpio José Silva Neto, Gustavo Ramalho Pessoa Negromonte, Cláudia Martina Araújo Duarte, Bartolomeu Fragoso Cavalcanti Neto, Rebeca Danielly da Fonseca Farias
• Format: Article
• Language: English
• Published: Colégio Brasileiro de Radiologia e Diagnóstico por Imagem 2015-12-01
• Series: Radiologia Brasileira
• Subjects: Anatomia; Tronco celíaco; Artéria hepática; Tomografia computadorizada multidetectores
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-39842015000600005&lng=en&tlng=en

Abstract Objective: To analyze the prevalence of anatomical variations of celiac arterial trunk (CAT) branches and hepatic arterial system (HAS), as well as the CAT diameter, length and distance to the superior mesenteric artery. Materials and Methods: Retrospective, cross-sectional and predominantly descriptive study based on the analysis of multidetector computed tomography images of 60 patients. Results: The celiac trunk anatomy was normal in 90% of cases. Hepatosplenic trunk was found in 8.3% of patients, and hepatogastric trunk in 1.7%. Variation of the HAS was observed in 21.7% of cases, including anomalous location of the right hepatic artery in 8.3% of cases, and of the left hepatic artery, in 5%. Also, cases of joint relocation of right and left hepatic arteries, and trifurcation of the proper hepatic artery were observed, respectively, in 3 (5%) and 2 (3.3%) patients. Mean length and caliber of the CAT were 2.3 cm and 0.8 cm, respectively. Mean distance between CAT and superior mesenteric artery was 1.2 cm (standard deviation = 4.08). A significant correlation was observed between CAT diameter and length, and CAT diameter and distance to superior mesenteric artery. Conclusion: The pattern of CAT variations and diameter corroborate the majority of the literature data. However, this does not happen in relation to the HAS.