Tensor magnetic resonance imaging in a case of mild traumatic brain injury with lowered verbal intelligence quotient
Tensor magnetic resonance imaging in a case of mild traumatic brain injury with lowered verbal intelligence quotient
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DOI：
10.2340/16501977-0065
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发表时间：
2007-05-01
影响因子：
3.5
通讯作者：
Nakamura, Toshinori
中科院分区：
文献类型：
--
作者：
Hashimoto, Keiji;Okumura, Ayumi;Nakamura, Toshinori
我们报告的情况下，一个31岁的男子谁有轻度创伤性脑损伤的结果，在24岁的事故。创伤后7年，在31岁时，他在韦氏成人智力量表（修订版）中表现出言语智商低于表现智商，并出现额叶功能障碍，例如，在威斯康辛卡片分类测试Keio版本中表现出难以维持或改变设置。常规脑磁共振成像未显示任何异常。磁共振弥散张量成像检测异常脑区。在神经束造影上，从胼胝体到额叶皮层的一些纤维在左半球比右半球少。神经束造影结果可以解释患者的语言智商下降和左额叶局灶性功能障碍。因此，弥散张量成像有助于发现轻度创伤性脑损伤伴弥漫性轴索损伤的病变。
We report the case of a 31-year-old man who had mild traumatic brain injury as a result of an accident at the age of 24 years. Seven years after the trauma, at the age of 31 years, he had a lower verbal intelligence quotient than performance intelligence quotient by the Wechsler Adult Intelligence Scale - Revised, and frontal lobe dysfunction, for example, difficulty in maintaining or changing the set as revealed by the Wisconsin Card Sorting Test Keio Version. Conventional brain magnetic resonance imaging had not shown any abnormalities. Abnormal brain areas were detected on magnetic resonance diffusion tensor imaging. On tractography, some fibres from the corpus callosum towards the frontal cortex were noted to be lacking in the left hemisphere compared with the right. The tractography results may explain the patient's lowered verbal intelligence quotient and focal left frontal lobe dysfunction. Diffusion tensor imaging is therefore helpful in detecting lesions in mild traumatic brain injury with diffuse axonal injury.