Variant anatomy of the portal vein according to computed tomography
The aim is to study the frequency of portal vein’s structure variants occurrence according to computed tomography, to evaluate the role of anatomical variations in preoperative planning. Material and methods. The material was the results of computed tomography of 100 patients. DICOM format data were downloaded to the “Avtoplan” system, developed at the Center for Breakthrough Studies of the SamGMU “Information Technologies in Medicine”, to build segmentation and 3D-modeling in the planning of operations and the implementation of virtual interventions. Classifications of T. Nakamura (2002) and P. Krumm (2011) were used to determine the type of portal vein fission and the type of confluence. Results. As a result of the study, it was found that the most common type of portal vein division according to T. Nakamura classification is type A (49%), a classical type of vein’s division into right and left trunks. The most common type of confluence is the C (36%), when the inferior mesenteric vein draining into the superior mesenteric vein. The obtained data can be used by radiologists and surgeons in the planning and implementation of surgical interventions on the organs of hepatobiliary system.