Madolo Mbalentle, Gunston Geney, More Stuart, Mpolokeng Kentse
Division of Clinical Anatomy and Biological Anthropology, Department of Human Biology, University of Cape Town, Cape Town, South Africa.
Division of Nuclear Medicine, Department of Radiation Medicine, Groote Schuur Hospital, Cape Town, South Africa.
Surg Radiol Anat. 2025 Jun 13;47(1):159. doi: 10.1007/s00276-025-03670-4.
The anterior communicating artery complex (ACAC) comprises the A1 and A2 segments of the anterior cerebral artery (ACA) and the anterior communicating artery (ACoA). It is a common site for aneurysms and variations in anterior cerebral circulation. With ongoing advancements in endovascular intervention, there is an increasing need for detailed anatomical knowledge of the ACAC. This study was conducted to explore the anatomical measurements, including the length and diameter, of the ACAC in a South African population.
The study involved the analysis of 200 adult magnetic resonance angiogram (MRA) scans (145 female, 55 male) from Groote Schuur Hospital, Department of Radiology, where the internal length and diameter of ACAC vessels were obtained.
The average internal length of the right and left A1 ACA segments was 13.5 (3.48) mm and 12.85 (2.57) mm, respectively. The internal diameter of the right and left ACA was 2.26 (0.45) mm and 2.25 (0.68) mm, respectively. For the A2 ACA, the average internal length for the right A2 ACA was 23.4 (3.94) mm, and the left A2 ACA had an average internal length of 23.7 (3.97) mm. The average internal diameter for the right and left A2 ACA was 2.3 (0.33) mm and 2.37 (0.78) mm, respectively. For ACoA, the average internal length was 1.5 (1.76) mm, and the average diameter was 0.85 (0.91) mm.
The morphometric parameters of the ACAC measured in this study were within similar ranges to those reported in previous international and national studies.
前交通动脉复合体（ACAC）由大脑前动脉（ACA）的A1和A2段以及前交通动脉（ACoA）组成。它是大脑前循环中动脉瘤和变异的常见部位。随着血管内介入技术的不断进步，对ACAC详细解剖知识的需求日益增加。本研究旨在探讨南非人群中ACAC的解剖学测量值，包括长度和直径。
本研究对格罗特·舒尔医院放射科的200例成人磁共振血管造影（MRA）扫描图像（145例女性，55例男性）进行分析，获取ACAC血管的内部长度和直径。
右侧和左侧A1 ACA段的平均内部长度分别为13.5（3.48）mm和12.85（2.57）mm。右侧和左侧ACA的内径分别为2.26（0.45）mm和2.25（0.68）mm。对于A2 ACA，右侧A2 ACA的平均内部长度为23.4（3.94）mm，左侧A2 ACA的平均内部长度为23.7（3.97）mm。右侧和左侧A2 ACA的平均内径分别为2.3（0.33）mm和2.37（0.78）mm。对于ACoA，平均内部长度为1.5（1.76）mm，平均直径为0.85（0.91）mm。
本研究中测量的ACAC形态学参数与先前国际和国内研究报道的范围相似。
