Dissecting aortic aneurysms: accuracy of computed tomographic diagnosis

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.