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Magnetic resonance imaging for surgical consideration of acute head injury

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Abstract

The authors studied the extravasation of contrast enhancement on magnetic resonance (MR) imaging within 6 hours after head injury in 10 patients with 12 intracranial haemorrhagic lesions. The decision for surgical intervention was made by neurological e xamination, computed tomographic scan, and contrast extravasation on MR imaging. Nine of 10 patients showed extravasation of contrast agent and one patient showed equivocal findings of contrast extravasation. All intracranial lesions with contrast extrav asation led to enlargement in size. With the exception of 1 patient who showed equivocal findings of contrast extravasation, 9 patients needed surgical evacuation of the haemorrhagic lesions. The results of the current study imply that extravasation of c ontrast medium indicates persistence of post-traumatic bleeding. MR imaging with gadolinium enhancement in acutely head injured patients may be used to predict the development of haemorrhagic lesions and could be helpful in decision making for surgical intervention.

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Correspondence to: Y.Takanashi, Department of Neurosurgery, Yokohama City University, 3-9 Fukuura, Kanazawa-ku, Yokohama, Japan 236-0004. Tel.: +81 45 787 2663; Fax: +81 45 783 6121; E-mail:[email protected]

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