VARIATIONS IN THE ORIGIN OF INFERIOR PHRENIC ARTERIES AND THEIR RELATIONSHIP TO CELIAC AXIS VARIATIONS ON CT ANGIOGRAPHY.

Abstract

Background: The inferior phrenic arteries are the rst branch of abdominal aorta. It is necessary to be familiar with the anatomy of the inferior phrenic arteries in surgical and traumatic vascular injuries, haemoptysis, especially due to pulmonary pathologies located in the lung base, and gastroesophageal haemorrhage from the gastroesophageal junction. It is the most common extra-hepatic supply of hepato-cellular carcinomas. TACE is the treatment of choice for unresectable and advanced hepatocellular carcinomas. Knowledge of the detailed arterial anatomy is required for successful embolization by TACE and to prevent complications. Data set Methods: consisted of 150 patients who underwent triple phase CT angiography in GI bleed protocol. The association of CA variation with common trunk, RIPA and LIPA, Chi-square test was used. RIPA most commonly originated from abdomina Results: l aorta in 88 (58.7%) patients followed by celiac artery 45 (30%). LIPA most commonly originated from abdominal aorta in 77 (51.3%) patients followed by celiac artery 69 (46%). There was no statistical signicance detected between the common truncus of IPA, RIPA & LIPA with celiac axis variations. The anatomy Conclusion: and variations in the origin of inferior phrenic arteries are clinically important and should be evaluated with CTA prior to the surgical or interventional management. In our study we did not nd any relationship between the origin of the common trunk of IPA, LIPA and RIPA with celiac axis variations. The variations in the origin of inferior phrenic arteries and celiac axis variations can be explained by their embryological development.