R Ferrari1, C N De Cecco, F Iafrate, P Paolantonio, M Rengo, A Laghi. 1. Department of Radiological Sciences, University of Rome La Sapienza, Polo Pontino, I.C.O.T. Via Franco Faggiana 34, I-04100, Latina, and St. Andrea Hospital, Rome, Italy.
Abstract
PURPOSE: This study was undertaken to evaluate the accuracy of 64-row computed tomography angiography (CTA) in the study of vascular anatomy by assessing the incidence of anatomical variations of the origin of the coeliac trunk, mesenteric arteries and collateral branches. MATERIALS AND METHODS: Sixty patients were evaluated with 64-row CTA (VCT, General Electric Healthcare, Milwaukee, WI, USA) with a collimation of 0.625 mm after the injection of iodinated nonionic contrast material (4 ml/s). Exclusion criteria were the presence of any pathological condition likely to affect normal vascular anatomy. RESULTS: The coeliac trunk had a normal trifurcation in 56.7% of cases. The common hepatic artery was normal in 60% of patients. The inferior pancreaticoduodenal arteries were either absent or not assessable in 8.3% of cases and there was a double trunk in 5%, a common trunk in 83.3% and a single vessel in 3.3%. The number of jejunal and ileal arteries ranged from a minimum of six to a maximum of 13 (mean value 8.7+/-1.34). The Riolan arcade was assessable in 31.7% and developed in 68.4% of these. CONCLUSIONS: The 64-row CTA enables visualisation of small vessels and accessory arteries that are difficult to identify with other techniques. The technique's high sensitivity allowed us to observe that the prevalence of vascular abnormalities is higher than that reported in the literature.
PURPOSE: This study was undertaken to evaluate the accuracy of 64-row computed tomography angiography (CTA) in the study of vascular anatomy by assessing the incidence of anatomical variations of the origin of the coeliac trunk, mesenteric arteries and collateral branches. MATERIALS AND METHODS: Sixty patients were evaluated with 64-row CTA (VCT, General Electric Healthcare, Milwaukee, WI, USA) with a collimation of 0.625 mm after the injection of iodinated nonionic contrast material (4 ml/s). Exclusion criteria were the presence of any pathological condition likely to affect normal vascular anatomy. RESULTS: The coeliac trunk had a normal trifurcation in 56.7% of cases. The common hepatic artery was normal in 60% of patients. The inferior pancreaticoduodenal arteries were either absent or not assessable in 8.3% of cases and there was a double trunk in 5%, a common trunk in 83.3% and a single vessel in 3.3%. The number of jejunal and ileal arteries ranged from a minimum of six to a maximum of 13 (mean value 8.7+/-1.34). The Riolan arcade was assessable in 31.7% and developed in 68.4% of these. CONCLUSIONS: The 64-row CTA enables visualisation of small vessels and accessory arteries that are difficult to identify with other techniques. The technique's high sensitivity allowed us to observe that the prevalence of vascular abnormalities is higher than that reported in the literature.
Authors: Miraude E A P M Adriaensen; Marc C J M Kock; Theo Stijnen; Marc R H M van Sambeek; Hero van Urk; Peter M T Pattynama; M G Myriam Hunink Journal: Radiology Date: 2004-09-09 Impact factor: 11.105
Authors: Francesco Saverio Mari; Giuseppe Nigri; Alessandra Pancaldi; Carlo Nicola De Cecco; Marcello Gasparrini; Anna Dall'Oglio; Fioralba Pindozzi; Andrea Laghi; Antonio Brescia Journal: Surg Endosc Date: 2013-01-05 Impact factor: 4.584