Abstract
Gd-DTPA is a paramagnetic contrast agent for MR that produces enhancement of lesions on T1-weighted images. Since it does not cross the intact blood-brain barrier (BBB), Gd-DTPA enhances only those pathologic processes that are associated with breakdown of the BBB and structures or lesions that are devoid of a BBB. Gd-DTPA improves conspicuity, helps characterize and delineate the extent of lesions, and increases the sensitivity for detection of cerebral abnormalities.
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