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Fifty patients with intracranial meningiomas underwent plain and contrast- enhanced examinations with CT and MRI.Each of the MR studies consisted of three plain(T1-proton density and T2-weighted)and a post-contrast series (0.1 mmol Gd-DTPA/kg body weight).All techniques(plain CT,plain MRI, contrast-enhanced CT,contrast-enhanced MRI)proved to be highly efficient as regards tumour detection:depending on the technique,an intracranial lesion was demonstrated in 47-50 cases.The image contrast was assessed as good or excellent in 21 cases having plain CT and in 33 cases having plain MRI,but in 46 and 50 of the contrast-enhanced CT and MRI studies respectively.Adequate tumour delineation was achieved in 18 cases with plain CT,in 35 cases with plain MRI and in 46 and 50 cases of the contrast-enhanced CT and MRI examinations.The contrast-enhanced studies proved to be superior to the plain CT and MRI studies as regards image contrast and tumor delineation.Because of the methodological advantages of the MRI technique,contrast-enhanced MRI was judged to be slightly superior to contrast-enhanced CT. |
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CAT scan
CAT scan,abnormal
CAT scan,contrast enhanced
gadolinium
meningioma
MRI
MRI,abnormal
MRI,CAT scan compared to
MRI,contrast enhanced
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