Abstract:
:We performed serial baseline and gadolinium (Gd)-DTPA-enhanced MRI in 4 patients with definite multiple sclerosis. Studies were performed every month for a total of 4 scans. We obtained short TR/short TE sequences at 10 and 60 minutes after Gd-DTPA injection. All patients had multiple hyperintense lesions seen on baseline MRI with long TR/short and long TE. There was Gd-DTPA enhancement in new, enlarging, and preexisting lesions that were unchanged in size. The enhancing lesions were always seen on T2-weighted images. There was no difference in enhancement between the 10- and 60-minute studies. Six of 85 preexisting lesions enhanced whereas all new or enlarging lesions enhanced. Enhancement persisted in only 1/3 of the new or enlarging lesions, suggesting that MR enhancement is a transient phenomenon due to local temporary blood-brain barrier breakdown. Our data indicate that Gd-DTPA enhancement monitoring is more sensitive than unenhanced MRI for detecting disease activity in MS.
journal_name
Neurologyjournal_title
Neurologyauthors
Bastianello S,Pozzilli C,Bernardi S,Bozzao L,Fantozzi LM,Buttinelli C,Fieschi Cdoi
10.1212/wnl.40.4.591subject
Has Abstractpub_date
1990-04-01 00:00:00pages
591-5issue
4eissn
0028-3878issn
1526-632Xjournal_volume
40pub_type
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