The diagnostic value of imaging techniques for aortic dissection.

S D Barbant; M J Eisenberg; N B Schiller

doi:10.1016/0002-8703(92)90632-6

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The diagnostic value of imaging techniques for aortic dissection.

S D Barbant·M J Eisenberg·N B Schiller

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Abstract

Previous studies conducted in high-risk populations have reported high predictive values and accuracies for diagnostic imaging techniques for aortic dissection. To see how these techniques perform in low-risk populations, we used Bayes' theorem to calculate predictive values and accuracies for angiography, CT, MRI, and TEE. In high-risk populations (disease prevalence = 50%), positive predictive values were all greater than 85%. In intermediate risk populations (disease prevalence = 10%), positive predictive values were greater than or equal to 90% for CT, MRI, and TEE, but were 65% for angiography. In low-risk populations (disease prevalence = 1%), positive predictive values were 100% for MRI and less than or equal to 50% for angiography, CT, and TEE. In all three populations, negative predictive values and accuracies were greater than or equal to 85%. From these results we conclude that diagnostic imaging techniques for aortic dissection do not perform as well in low-risk populations as they do in high-risk populations.

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Aortic Dissection Aorta, Thoracic Aortic Aneurysm Bayes Theorem Diagnostic Imaging Humans Predictive Value of Tests Prevalence Risk Factors Sensitivity and Specificity Editorial Research Support, Non-U.S. Gov't

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S D Barbant, M J Eisenberg, N B Schiller. 1992. The diagnostic value of imaging techniques for aortic dissection.. https://doi.org/10.1016/0002-8703(92)90632-6

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