Objective: To describe some anatomical features and dimensions of the uterine artery on digital subtraction angiography images.
Subjects and methods: A prospective study involving 18 female patients examined at Tam Anh General Hospital in Hanoi, who underwent digital subtraction angiography of the internal iliac artery and its branches from December 2023 to May 2024.
Results: 94.4% of patients were aged between 31-50 years. 77.8% of the right uterine arteries and 77.2% of the left uterine arteries originated from the anterior trunk of the internal iliac artery. The average diameter at the origin of the right uterine artery was 1.78 ± 0.6 mm, and at the midpoint of the horizontal segment was 1.66 ± 0.52 mm. The average diameter at the origin of the left uterine artery was 1.9 ± 0.68 mm, and at the midpoint of the horizontal segment was 2.02 ± 0.72 mm. The minimum length of the right uterine artery was 32.9 ± 20.1 mm, while the left was 15.8 ± 26.1 mm. The maximum number of twists in the lateral segment of the uterine artery was 23, the minimum was 2, and the average was 8.9. The branches of the right and left uterine arteries appeared in nearly equal numbers.
Conclusion: The most common origin of the uterine artery is directly from the anterior trunk of the internal iliac artery. The course of the uterine artery is divided into three segments, with twisting occurring only in the uterine segment. The uterine artery branches into four branches, primarily from the terminal part of the horizontal segment and the lateral border of the uterus.