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| Carotid Artery |
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| Occlusion |
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| · | Positive
predictive value of duplex |
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| sonography
compared with |
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| arteriography |
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| – | Duplex 92.5% |
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| – | Duplex &
color 96.7% |
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| Kirsch et al: J Vasc
Surg 19:642, 1994 |
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