Title Anatomical variants of the hepatic arteries and their influence on superior mesenteric artery hemodynamics /
Translation of Title Kepenų arterijų anatominiai variantai ir jų įtaka viršutinės pasaito arterijos hemodinamikai.
Authors Samuilis, Artūras
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Pages 34
Keywords [eng] hepatic arteries ; superior mesenteric artery ; hemodynamics ; computed tomography angiography ; Doppler ultrasound
Abstract [eng] Anatomical variants of hepatic arteries are frequent. One of the most common origins of aberrant (atypically branching) hepatic arteries is superior mesenteric artery. Many physiologic and pathologic features influence hemodynamics of the latter artery. There were some sporadic cases in literature about the influence of aberrant hepatic artery arising from superior mesenteric artery to the hemodynamics of the latter artery, but no evidence based large extent studies were performed. Therefore the aim of this study was to evaluate how significant the aberrant hepatic artery branching from the superior mesenteric artery influences the hemodynamics of superior mesenteric artery. Anatomical variants of the hepatic arteries were evaluated by computed tomography angiography also the candidates for Doppler ultrasound were selected. Doppler ultrasound was used to evaluate the hemodynamics of the superior mesenteric artery in patients with aberrant hepatic artery arising from the superior mesenteric artery and in those with typical hepatic artery anatomy. The influence of the aberrant hepatic artery arising from superior mesenteric artery to the hemodynamics (resistance) of the superior mesenteric artery was assessed. The results of the investigation show that anatomical variants of the hepatic arteries are frequent. The aberrant hepatic artery arising from superior mesenteric artery significantly lowers resistance of the superior mesenteric artery. Practical recommendations were set forward.
Type Summaries of doctoral thesis
Language English
Publication date 2011