Abstract:
OBJECTIVES:Little is known about optic radiation (OR) injury in intracerebral hemorrhage (ICH). We attempted to investigate OR injury in patients with ICH by diffusion tensor imaging (DTI). METHODS:Forty-three consecutive patients with putaminal hemorrhage and 40 normal healthy control subjects were recruited. DTI data were acquired at the beginning of rehabilitation (average 34 days after onset). DTI-Studio software was used to reconstruct the OR. Fractional anisotropies (FA) and fiber numbers of the ORs were measured. FA values and fiber numbers of affected ORs were described as abnormal when they were more than 2.5 SD lower than those of normal controls. RESULTS:Thirty (70%) of the 43 patients showed an OR abnormality in the affected hemisphere. In 13 (30%) patients, the affected OR was disrupted or nonreconstructable. On the other hand, of the 20 patients with preserved OR integrity, 14 (33%) had a low FA value and 3 (7%) a low FA and fiber number. The other 13 (30%) of the 43 patients had no abnormal OR findings. CONCLUSION:Seventy percent of patients showed any abnormality of OR in the affected hemisphere on DTI. This result suggests that patients with putaminal hemorrhage are at high risk of OR injury.
journal_name
Eur Neuroljournal_title
European neurologyauthors
Seo JP,Choi BY,Chang CH,Jung YJ,Byun WM,Kim SH,Kwon YH,Jang SHdoi
10.1159/000345271subject
Has Abstractpub_date
2013-01-01 00:00:00pages
236-41issue
4eissn
0014-3022issn
1421-9913pii
000345271journal_volume
69pub_type
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pub_type: 临床试验,杂志文章,随机对照试验
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