Brain tumors: MR imaging with gadolinium-DTPA.

摘要: Magnetic resonance (MR) imaging was performed on 40 patients with intracranial tumors, before and after intravenous administration of gadolinium-DTPA (Gd-DTPA). Precontrast studies included a comprehensive protocol spin-echo sequences. Tumors were visualized precontrast images either directly or indirectly by anatomic distortion caused the mass. However, differentiation tumor from adjacent tissues possible in only 17 cases. Delineation best precontrast, T2-weighted images. After Gd-DTPA (0.1 mmol/kg), increased signal intensity observed all patients. The localized increase considerably improved delineation 36 Whereas most meningiomas, neuromas, adenomas could be delineated prior to contrast material if appropriate pulse sequences applied, glioblastomas metastases required for diagnostica...