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Statistical data for carotid bruits |
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| Grade of Carotid US Stenosis |
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| Carotid Bruits (yes/no) |
50–69% |
70–99% |
100% |
50–99% |
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|
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| Sensitivity |
55% (53/96) |
77% (183/238) |
26% (15/57) |
71% (236/334) |
| Specificity |
52% (255/486) |
71% (243/344) |
49% (256/525) |
81% (200/248) |
| Accuracy |
53% (308/582) |
73% (426/582) |
47% (271/582) |
75% (436/582) |
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291 patients (582 cervical sides) had data regarding the degree of carotid stenosis seen on carotid US and presence or absence of a carotid bruit recorded in their medical records. With the US examination as gold standard the sensitivity, specificity and accuracy for carotid bruits were calculated with the hypothesis that all separate stenosis groups are the only ones that produce a bruit in each case | ||||
Johansson and Wester BMC Neurology 2008 8:23 doi:10.1186/1471-2377-8-23 |
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