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CT patterns of mural thrombus in aortic aneurysms
Insights
Computed tomography (CT) analysis of 71 arteriosclerotic and/or dissecting aortic aneurysms revealed common enlargement and deformity. Mural thrombus patterns were classified, with ring type being most frequent.
Area of Science:
- Radiology
- Cardiovascular Imaging
- Vascular Surgery
Background:
- Aortic aneurysms, including arteriosclerotic and dissecting types, pose significant clinical challenges.
- Accurate imaging is crucial for diagnosis, characterization, and management planning.
- Computed tomography (CT) is a primary modality for evaluating aortic pathology.
Purpose of the Study:
- To analyze CT findings in patients with arteriosclerotic and/or dissecting aortic aneurysms.
- To characterize the prevalence and patterns of mural thrombus within these aneurysms.
- To assess associated features like aortic deformity and calcification.
Main Methods:
- Retrospective analysis of 71 computed tomography (CT) scans from patients with aortic aneurysms.
- Categorization of aneurysm location (thoracic, abdominal, thoracoabdominal).
- Detailed evaluation of aortic morphology, mural thrombus presence and patterns, and calcification.
Main Results:
- All 71 cases exhibited aortic enlargement; 92% showed aortic deformity.
- Mural thrombus was present in 86% of cases, with eight distinct patterns identified.
- The most common thrombus patterns were ring type (Type A), left crescent (Type H), and left posterior crescent (Type D).
- Calcification was observed in 60 cases, including intraluminal calcification in 14 cases.
Conclusions:
- CT imaging effectively demonstrates enlargement and deformity in arteriosclerotic and/or dissecting aortic aneurysms.
- Mural thrombus is a frequent finding, exhibiting diverse patterns that may have clinical implications.
- Characterization of thrombus patterns, deformity, and calcification on CT aids in comprehensive aneurysm assessment.
Abstract:
The computed tomography (CT) scans of 71 cases of arteriosclerotic and/or dissecting aortic aneurysms (33 thoracic, 25 abdominal, and 13 thoracoabdominal) were analyzed. Enlargement was seen in all cases, and deformity of aorta was found in 92%. Mural thrombus was evident on CT in 86% of the cases, and its pattern was classified into eight types. The most frequent was the ring type (Type A) followed by the left crescent thrombus (Type H) and the left posterior crescent thrombus (Type D). Calcification was found in 60 cases, and intraluminal calcification was seen in 14 cases.