ISSN:
1432-1920
Keywords:
Brain neoplasms
;
Magnetic resonance imaging
;
Neuroma
;
Meningioma
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Abstract Dynamic MRI was performed on 22 patients with extra-axial intracranial tumours. Serial images were obtained every 30 s for 3 min using a spin-echo sequence (TR 200, TE 15 ms) after rapid injection of Gd-DTPA, 0.1 mmol/kg body weight. The contrast medium enhancement ratio (CER) was correlated with the histology of the tumours. Meningiomas and extra-axial metastases showed a sharp rise, then a gradual decline. Although both had a definite early peak of CER, metastases showed a more rapid decline. Neuromas and extra-axial lymphoma showed a slow, steady increase with no peak within 180 s. This study indicates that the CER is helpful in the differentiation of extra-axial tumours.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00593708
