1995
DOI: 10.1007/s002340050148
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Differential diagnosis of extra-axial intracranial tumours by dynamic spin-echo MRI

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 ex… Show more

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“…They are benign slow-growing tumors that can reach considerable size at the time of diagnosis. To distinguish meningiomas from neurinomas, dynamic contrast-enhancing MRI sequences are useful, since meningiomas usually show early enhancement, while neurinomas present gradual enhancement [54,55]. Due to an en plaque growth pattern often associated with a "dural tail", differentiation from pituitary macroadenomas usually is not a problem (Figure 9).…”
Section: Meningiomasmentioning
confidence: 99%
“…They are benign slow-growing tumors that can reach considerable size at the time of diagnosis. To distinguish meningiomas from neurinomas, dynamic contrast-enhancing MRI sequences are useful, since meningiomas usually show early enhancement, while neurinomas present gradual enhancement [54,55]. Due to an en plaque growth pattern often associated with a "dural tail", differentiation from pituitary macroadenomas usually is not a problem (Figure 9).…”
Section: Meningiomasmentioning
confidence: 99%