Registration-based semi-automatic assessment of aortic diameter growth rate from contrast-enhanced computed tomography outperforms manual quantification

ConclusionsRegistration-based assessment of aortic dilation on CTA is accurate and substantially more reproducible than the current standard, even at follow-up as short as 6  months, and provides robust 3D mapping of aortic diameters and growth rates beyond the pre-established anatomic landmarks.Key Points•Registration-based semi-automatic assessment of progressive aortic dilation on CTA is accurate and substantially more reproducible than the current standard.•The registration-based technique allows robust growth rate assessment at follow-up as short as 6  months, with a similar reproducibility to that obtained by manual assessment at around 3 years.•The use of image registration provides robust 3D mapping of aortic diameters and growth rates beyond the pre-established anatomic landmarks.
Source: European Radiology - Category: Radiology Source Type: research