AI-CARE: Artificial Intelligence for Cardiovascular Analysis and Risk Evaluation

Inclusion Criteria

• •Adults ≥22 years at time of imaging
• •Studies performed 1 Jan 2016 - 31 August 2025
• •CT imaging of the whole, thoracic, or abdominal aorta, with or without contrast enhancement, acquired with any gating protocol (including non-gated)
• •Slice thickness ≤ 3mm
• •CT imaging in which truncation creates discontinuity within a targeted aortic region, preventing reliable diameter measurement (e.g., cardiac-focused CT acquisitions where an incomplete or absent aortic arch creates discontinuity between the aortic root and the descending thoracic aorta)
• •o Partial aortic coverage is not grounds for exclusion. Where truncation affects individual regions, only those specific regions will be excluded from analysis; remaining fully captured regions will be retained for measurement.
• •Metal implants \<5cm from aorta (e.g. thoracic stent)
• •Prior aortic surgery
• •Severe motion artifacts (e.g. \>3mm vessel blurring)
• •Congenital aortic anomalies (e.g. coarctation, vascular rings)
• •Post-traumatic aortic repairs
• •The patient opted out of having their data used for medical research before the date of cross-referencing by the site team