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Dissecting aortic aneurysms: accuracy of computed tomographic diagnosis
Insights
High-resolution computed tomography (CT) accurately diagnoses dissecting aortic aneurysms. This noninvasive imaging technique identified double contrast-filled channels, proving effective in patient evaluation.
Area of Science:
- Radiology
- Cardiovascular Imaging
- Diagnostic Medicine
Background:
- Dissecting aortic aneurysms require accurate and timely diagnosis.
- Noninvasive imaging modalities are crucial for patient assessment.
Purpose of the Study:
- To evaluate the diagnostic accuracy of high-resolution computed tomography (CT) for dissecting aortic aneurysms.
- To assess the utility of CT in identifying the characteristic double-channel sign of aortic dissection.
Main Methods:
- A three-year retrospective study involving fifty patients with suspected dissecting aortic aneurysms.
- Diagnosis was based on identifying two contrast-medium-filled channels within the aortic lumen via high-resolution CT.
- Postoperative evaluations and follow-up were conducted for all patients.
Main Results:
- Eighteen patients were diagnosed with dissecting aortic aneurysms using CT.
- One false-positive and no false-negative diagnoses were recorded.
- Persistence of the double channel was noted in five of eight postoperatively evaluated patients.
Conclusions:
- High-resolution CT is an accurate and noninvasive method for diagnosing dissecting aortic aneurysms.
- The identification of a double channel on CT is a reliable indicator of aortic dissection.
- CT plays a vital role in the initial evaluation and follow-up of patients with suspected aortic dissection.
Abstract:
During a three-year period, fifty patients were evaluated for the possibility of dissecting aortic aneurysm using high-resolution computed tomography (CT). The diagnosis of dissection was made if two contrast-medium-filled channels were identified within the aortic lumen. Eighteen patients were diagnosed with CT as having dissecting aortic aneurysms. Eight patients were evaluated postoperatively and five of these patients had persistence of the double channel. Twenty-four patients had no evidence on CT of aortic dissection. Follow-up was obtained in all patients. There were no known false-negative diagnoses and one false-positive diagnosis. High-resolution CT offers an accurate, noninvasive means to evaluate patients for suspected dissecting aortic aneurysms.