Automatic and accurate segmentation of aortic vessel tree (AVT) in computed tomography (CT) scans is crucial for early detection, diagnosis and prognosis of aortic diseases, such as aneurysms, dissections and stenosis. However, this task remains challenges, due to the complexity of aortic vessel tree and amount of CT angiography data. In this technical report, we use two-stage fully convolutional networks (FCNs) to automatically segment AVT in CTA scans from multiple centers. Specifically, we firstly adopt a 3D FCN with U-shape network architecture to segment AVT in order to produce topology attention and accelerate medical image analysis pipeline. And then another one 3D FCN is trained to segment branches of AVT along the pseudo-centerline of AVT. In the 2023 MICCAI Segmentation of the Aorta (SEG.A.) Challenge , the reported method was evaluated on the public dataset of 56 cases. The resulting Dice Similarity Coefficient (DSC) is 0.920, Jaccard Similarity Coefficient (JSC) is 0.861, Recall is 0.922, and Precision is 0.926 on a 5-fold random split of training and validation set.

采用两阶段的全卷积网络，在 CTA 扫描中准确自动地分割主动脉血管树，达到加速医学图像分析流程的目的，并在 2023 年 MICCAI 主动脉（SEG.A.）挑战赛中，使用公共数据集评估了该方法，取得了较高的 Dice 相似系数（0.920）、Jaccard 相似系数（0.861）、召回率（0.922）和精确度（0.926）的结果。

使用深度完全卷积网络在CT扫描中分割主动脉血管树