期刊
BRITISH JOURNAL OF RADIOLOGY
卷 83, 期 994, 页码 E216-E219出版社
BRITISH INST RADIOLOGY
DOI: 10.1259/bjr/74416385
关键词
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The spot sign', first described in 2007, has shown that a focal area of contrast extravasation within an intracerebral haematoma (ICH) can be correlated with haematoma expansion. We describe a case where time-resolved dynamic CT angiography (dCTA) shows the appearance of the spot sign only in later images. This finding highlights the importance of timing of the static CT angiogram which, if performed too early, might result in a false-negative diagnosis.
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