| Conclusion |
|
|
|
|
|
|
|
|
|
|
| · | Sonography
incorrect in |
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| small
percentage |
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| · | May be able to
predict this |
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| subset and
obtain MRA or |
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| conventional
angiography |
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| · | Familiarity
with types of |
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| errors should
help to |
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| decrease their
frequency |
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