Figure 6.

Representative images of thrombus segmentation obtained using the feature-based expert system (magenta pink) and the hybrid method (blue cyan). The merge is colored in blue purple. (A) Performance of the methods to detect the thrombus (slice n) and extend the detection over the z axis (slice n + 1) in a case where the section of the aneurysmal has an ellipsoid shape (1) and in a case where the aneurysmal aorta was curved (2). (B–D) Performances of the method in complex cases—(B) cases where the thrombus is surrounded by soft tissues, (C) cases with the presence of endografts, and (D) cases with poor-quality scans (large slice thickness or low contrast enhancement). (1) Accurate segmentation by both algorithms. (2) Accurate segmentation only with the hybrid method. (3) Inaccurate segmentation by both algorithms.