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Traumatic Aortic Injury: Sensitivity and Specificity

Introduction: Also known as Acute Traumatic Aortic Injury, Aortic Rupture, Aortic transection. Represents injury to the aorta after trauma. In blunt trauma, typically occurs in the juxtaductal region.

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Tags: Trauma Vascular Tag this Diagnosis.

The sensitivity and specificity of findings for Traumatic Aortic Injury are listed below. See the left navigation bar to change the display.

Sensitive and Specific Findings

Finding SensitivitySpecificity Comments, Study
Trans-Esophageal Echocardiography Edit 98%100%

Study: Anesthesiology. 2000 Dec;93(6):1373-7. PMID: 11149428

CT angiography
Duplicate Edit
90%99%

direct signs of aortic injury (e.g. contour abnormality, flap)

Study: Radiology. 1996 Aug;200(2):413-22. PMID: 8685335

CT angiography
Duplicate Edit
100%87%

mediastinal hematoma only, without direct signs of aortic injury

Study: Radiology. 1996 Aug;200(2):413-22. PMID: 8685335

Specific Findings

Finding SensitivitySpecificity Comments, Study
Angiography Edit 83%100%

will miss minimal aortic injuries such as an intramural hematoma or limited intramural flap

Study: Anesthesiology. 2000 Dec;93(6):1373-7. PMID: 11149428

Poorly Diagnostic Findings

Finding SensitivitySpecificity Comments, Study
Widened mediastinum Edit 53%59%

Note that around 40% (!) of 'widened' mediastinums seen on supine radiographs will appear normal on upright views.

Study: Trauma.org http://www.trauma.org/archive/thoracic/CHESTaorta.html

Findings With Unspecified Accuracy

Finding SensitivitySpecificity Comments, Study
Apical cap Edit No accuracy specified.

Seen on CXR

Study: no study specified.

NG tube, Deviated Edit No accuracy specified.

Seen on CXR

Study: no study specified.

Aortic nob obliteration Edit No accuracy specified.

Seen on CXR

Study: no study specified.

Hemomediastinum Edit No accuracy specified.

Seen on CXR

Study: no study specified.