71
Table 31. High-Risk Imaging Features of PAUs
Feature
• Maximum PAU diameter ≥13–20 mm
• Maximum PAU depth ≥10 mm
• Significant growth of PAU diameter or depth
• PAU associated with a saccular aneurysm
• PAU with an increasing pleural effusion
Figure 22. Dimensions of Penetrating Atherosclerotic Ulcers
A, Maximal aortic diameter at ulcer site diameter (from ulcer across to opposite aortic wall).
B, Depth of intramural blood pool.
C, Length of intimal defect at ulcer site.
D, Width of intramural blood pool.
Adapted from Gifford, et al. Copyright 2016, with permission from Elsevier, Inc., and from Cho,
et al. Copyright 2004 with permission from the Society for Vascular Surgery.
