Bt Anjiografi İncelemelerinde İnferior Mezenterik Arterin Anatomik Özellik ve İlişkilerinin Değerlendirilmesi
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Balcı H,Evaluation of Inferior Mesenteric Artery Anatomy and its Relations on CT Anjiografi Examinations, Hacettepe University, Faculty of Medicine, Department of Radiology, Thesis in Radiology, Ankara, 2017 The aim of this study is to evaluate inferior mesenteric artery (IMA) anatomy, variations and its course with multislice computed tomography angiography (MSCTA). We evaluated IMA aterosclerosis, branching pattern of IMA, distance between origin of IMA and its first branch (truncus diameter), distance between IMA origin and celiac artery origin, distance between IMA origin and superior mesenteric artery (SMA) origin, and the distance between IMA origin and aortic bifurcationin in 200 patients who underwent MSCTA studies for several reasons. Branching patten was classified in accordance with Zebrowski classification. Our patient cohort composed of 114 (57%) male and 86 (43%) female. The mean age was 57.09 (+/-18.6) years. Aterosclerotic changes was observed in 57 patients (28.5%). The IMA trunk diameter was 37,8 +/- 10,1 mm, distance between IMA origin and celiac artery was 84,23 +/- 13,27 mm, distance between IMA and SMA was 67 +/- 12 mm, distance between IMA and aortic bifurcation was 42,1 +/- 9,6 mm. The IMA was detected in all our patients and originated from the anterior wall of the abdominal aorta. 194/200 of the cases (97%) cvould be classified in accordance with Zebrowski classification. 6 patients (3%) demonstrated several different branching configurations that were not in compliance with Zebrowski classification and these cases were seperately discussed in detail. We classified the patients with Zebrowski classification as following: 8 patients (4%) type A, 103 patients (51.5%) type B, 28 patients (14 %) type C, 3 patients (1,5 %) type D, 5 patients (2,5 %) type E, 2 patients (1%) type G, 45 patients (22,5 %) type H. Sigmoid artery arising from IMA could not be detected in 2 patients, while in 1 patient there was no left colic artery arising from the IMA. In 3 patients right colic artery was observed to arise from IMA. In conclusion; the branching pattern of IMA had a great variability and the awaraness of this high variability may have a strong clinical impact.