[Analysis with magnetic resonance imaging of lesions in cerebral achromatopsia].
[Analysis with magnetic resonance imaging of lesions in cerebral achromatopsia].
复制标题
脑色盲病变的磁共振成像分析[J].
DOI：
10.1016/s0021-5155(02)00568-3
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
T. Umahara
中科院分区：
文献类型：
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作者：
Yuichiro Tanaka;K. Kitahara;S. Nakadomari;Koichi Kumegawa;T. Umahara
方法对20例脑梗死所致同侧偏盲患者进行了检查，男17例，女3例，年龄49 ~ 81岁，平均65.1岁。使用石原板、标准假等色板（第2部分）和面板D-15测试来检查色觉。实验采用颜色匹配任务和颜色命名任务来测试颜色识别。我们试图将功能磁共振成像（fMRI）的病变分析在brain.ResultsCerebral全色盲被诊断为4例。分析表明，在下胼胝体区（布罗德曼区18和19）的病变与脑色盲。此外，与失败的面板D-15（PD-15）测试的病变位于更前面的比与失败的石原plates.ConclusionWe的证据表明，在前腹侧颞枕区的病变与脑全色盲。这一结果与过去的观察（尸检，功能磁共振成像和正电子发射断层扫描）是雅阁的。
MethodsWe examined 20 patients with homonymous hemianopsia caused by cerebral infarction (17 men and 3 women aged 49 to 81 years; mean age, 65.1 years). Ishihara plates, standard pseudoisochromatic plates (part 2) and the panel D-15 test were used to examine color perception. Color matching tasks and color naming tasks were used to test color recognition. We tried to apply functional magnetic resonance imaging (fMRI) to lesion analysis in the brain.ResultsCerebral achromatopsia was diagnosed in four patients. The analysis showed that lesions in the infracalcarine area (Brodmann's area 18 and 19) were associated with cerebral achromatopsia. Additionally, the lesions associated with failure of the panel D-15 (PD-15) test were located more anterior than the lesions associated with failure of Ishihara plates.ConclusionWe show evidence that lesions in the anterio-ventral temporo-occipital area are associated with cerebral achromatopsia. This result is in accord with past observations (autopsy, fMRI and positron emission tomography).