Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4964710 | Computerized Medical Imaging and Graphics | 2017 | 15 Pages |
Abstract
The maximum diameter of abdominal aortic aneurysm (AAA) is a key quantification parameter for disease assessment. Although it is routinely measured on 2D-ultrasound images, using a volumetric approach is expected to improve measurement reproducibility. In this work, 3D-ultrasound or computed tomography imaging of patients with AAA was combined with a minimally interactive 3D segmentation based on implicit template deformation. Segmentation usability and reproducibility were evaluated on 81 patients, showing a mean measurement time of [2;8] min per case, and Dice coefficients of 0.87 ± 0.12 for 3D-US and 0.81 ± 0.08 for CT. Quantification parameters included a diameter measurement from 3D-US and CT volumes with respective confidence intervals of 0.51 [â2.5;3.52] mm and 1.00 [â1.68;3.67] mm. Additional volume measurements showed confidence intervals of 0.91 [â4.17;5.99] ml for 3D-US and 4.10 [â4.11;12.30] ml for CT.
Related Topics
Physical Sciences and Engineering
Computer Science
Computer Science Applications
Authors
L. Rouet, B. Mory, E. Attia, K. Bredahl, A. Long, R. Ardon,