3D MODELING CAPABILITIES IN ASSESSING THE ARCHITECTONICS OF THE INTERNAL ILIAC ARTERY
Abstract
Objective is to study the architectonics variants of the internal iliac artery (IIA), its main branches, to determine clinically significant atypical variants, to estimate their frequency and applied significance using 3D modeling (based on CT-angiography data).
Material and methods. We retrospectively analyzed the results of multiphase spiral computed tomographic angiography (MSCTA) with the formation of 3D models (n=100) in the "3D Slicer" program (www.3dslicer.org). According to the data of threedimensional image of the arterial bed, guided by the topographic features of the main branches of the IIA, only its well visualized branches were evaluated: anterior and posterior trunks (AT and PT), the obturator artery (OA), the inferior gluteal artery (IGA), the superior gluteal artery (SGA), the internal pudendal artery (IPA), the ilio-lumbar artery (ILA), and the lateral sacral arteries (LSA).
Results. The IIA had typical architectonics in the majority of cases (63%) and atypical in 37% of cases. In a typical architectonics the AT branches were OA, IGA, IPA, and the PT branches were SGA, ILA, and LSA. We identified 9 atypical variants which were divided into 3 groups. The first group is related to the peculiarities of the IGA and IPA branches. The second group concerns the peculiarities of OA origin, which, unlike the typical variant, started from the PT or directly from the main trunk of the IIA. The third group includes the variants of ILA branching directly from the main IIA trunk.
Conclusions. The IIA and its branches have a wide range of branching options.
About the Authors
I. V. GaivoronskyRussian Federation
V. N. Rumyantsev
Russian Federation
D. A. Surov
Russian Federation
G. I. Sinenchenko
Russian Federation
G. I. Nichiporuk
Russian Federation
O. V. Balyura
Russian Federation
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Review
For citations:
Gaivoronsky I.V., Rumyantsev V.N., Surov D.A., Sinenchenko G.I., Nichiporuk G.I., Balyura O.V. 3D MODELING CAPABILITIES IN ASSESSING THE ARCHITECTONICS OF THE INTERNAL ILIAC ARTERY. Bashkortostan Medical Journal. 2022;17(6):68-72. (In Russ.)