Automatic segmentation and registration of abdominal aortic aneurysms using 3D ultrasound

Abdominal aortic aneurysms (AAAs) can lead to a fatal haemorrhage when ruptured. To predict the rupture risk of an AAA, Computed Tomography (CT) based wall stress analysis has been proposed and showed its merit in rupture risk assessment. However, CT has some drawbacks, e.g., ionising radiation exposure. As an alternative, 3D ultrasound (US) has shown its feasibility to determine AAA geometry. The major limitations were the lack of automated segmentation and the suboptimal field-of-view.