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.
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References
Felix R, Schorner W, Lanido M, et al (1985) Brain tumor: MR imaging with gadolinium-DTPA. Radiology 156: 681–688
Grafi M, Bydder GM, Steiner RE, et al (1985) Contrast enhanced MR imaging of malignant brain tumors. AJNR 6: 855–862
Stack JP, Antoun NM, Jenkins JPR, et al (1988) Gadolinium-DTPA as a contrast agent in magnetic resonance imaging of brain tumours. Neuroradiology 30:145–154
Koschorek F, Jensen HP, Terwey B (1987) Dynamic MR imaging: a further possibility for characterizing CNS lesions. ANJR 8:259–262
Bullock PR, Mansfield P, Gowland P, et al (1991) Dynamic imaging of contrast enhancement in brain tumors. Magn Reson Med 19:293–298
Sakamoto Y, Takahashi M, Korogi Y, Bussaka H, Ushio Y (1991) Normal and abnormal pituitary glands: gadopentate dimeglumine-enhanced MR imaging. Radiology 178:441–445
Korogi Y, Takahashi M, Sakamoto Y, Shinzato J (1991) Cavernous sinus: correlation between anatomic and dynamic gadolinium-enhanced MR imaging findings. Radiology 180:235–237
Takahashi M, Sakamoto Y, Korogi Y, Seto H, Ushio Y (1992) Dynamic MR imaging for localization of the normal pituitary tissue in macroadenoma. Radiology 185:327
Fujii K, Fujita N, Hirabaki N, et al (1992) Neuromas and meningiomas: evaluation of early enhancement with dynamic MR imaging. AJNR 13:1215–1220
Nagele T, Peterson D, Klose U, et al (1993) Dynamic contrast enhancement of intracranial tumors with snapshot-Flash MR imaging. AJNR 14:89–98
Mikhael MA, Ciric IS, Wolff AP (1985) Differentiation of cerebellopontine angle neuromas and meningiomas with MR imaging. J Comput Assist Tomogr 9:852–856
Press GA, Hesselink JR (1988) MR imaging of cerebellopontine angle and internal auditory canal lesions at 1.5 T. AJNR 8:241–251
Just M, Thelen M (1988) Tissue characterization with T1, T2, and proton density values: results in 160 patients with brain tumors. Radiology 169:779–785
Watabe T, Azuma T (1989) T1 and T2 measurements of meningiomas and neuromas before and after Gd-DTPA. AJNR 10:463–470
Takeda N, Tanka R, Nakai O, et al (1982) Dynamics of contrast enhancement in delayed computed tomography of brain tumor: tissue-blood radio and differential diagnosis. Radiology 142: 663–668
Faustino CG, Habibullah H, Marsha TC, et al (1985) Dynamic CT using an arterial bolus. Radiology 157:529–530
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Joo, Y.G., Korogi, Y., Hirai, T. et al. Differential diagnosis of extra-axial intracranial tumours by dynamic spin-echo MRI. Neuroradiology 37, 522–525 (1995). https://doi.org/10.1007/BF00593708
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DOI: https://doi.org/10.1007/BF00593708