Abstract
Abdominal aortic aneurysm (AAA) is a disease that is caused by dilation of the aortic wall. Dilation of the aortic wall will affect the size of the diameter of lumen and the aorta. In this study we use T1 and T2 images on 4 patients with AAA which generated from MR Imaging to calculate the diameter of the abdominal aortic aneurysm (AAA). To calculate the diameter of lumen and the aorta, the first step is image registration using Laplacian eigenmap method. After that we propose an automatic segmentation method on region of the aorta by using active contour models to get the contour of lumen and the aorta. The last step, we calculate the diameter of lumen and the aorta by using contour of lumen and the aorta. In our experiment, active contour model is very good method for segmentation AAA. In the result, our proposed model give the accuracy rate of lumen is 96.41% and accuracy rate of aorta is 95.22%.
Highlights
Abdominal aortic aneurysm (AAA) consists of two parts
The inside is known as Lumen, a place where the blood flows and the outside is known as thrombus which attaches in the aortic wall
The image of Abdominal Aortic Aneurysm was collected using Magnetic resonance imaging (MRI) including T1 and T2 weighted derived from 4 patients (Figure 1)
Summary
Abdominal aortic aneurysm (AAA) consists of two parts. The inside is known as Lumen, a place where the blood flows and the outside is known as thrombus which attaches in the aortic wall. Thrombus is formed through a process called thrombosis. Thrombosis occurs when platelets attach to the surface of aortic wall. Platelets will attach to the aortic wall. Can be formed a mass that stands out in the aortic wall, and will cause dilation of the aorta. Dilation of the aortic wall is called an aneurysm
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