Anatomical characteristics and variations of the abdominal aorta and its visceral branches on 128-slice computed to-mography in Vietnamese adults.

This study aimed to describe the anatomical features and variations of the abdominal aorta and its major visceral branches - the celiac trunk, superior mesenteric artery (SMA), and inferior mesenteric artery (IMA) - using 128-slice computed to-mography (CT) imaging. A descriptive, retrospective study was conducted on 193 adult Vietnamese patients who underwent contrast-enhanced 128-slice abdominal CT scans at Tam Anh General Hospital between December 2023 and December 2024. Origins, diameters, branching angles, and anatomical variants were recorded and an-alyzed using MIP and 3D VR reconstructions. Variations were classified using Uflack-er's (celiac trunk) and Kornafel's (SMA) systems. The most common origin levels were T12-L1 for the celiac trunk (33.7%), L1 for the SMA (36.3%), and L3 for the IMA (30.6%). Classical branching patterns were present in 68.0% for the celiac trunk, 96.3% for the SMA, and 97.4% for the IMA. Several uncommon variants, such as hepatosplenic trunks and IMA origin from the SMA, were identified. 128-slice CT provides high-resolution imaging to reliably assess vascular anatomy. Significant anatomical variation exists in the abdominal aorta and its branches, under-lining the importance of individualized preoperative evaluation.