核磁共振可以发现哪些脑部疾病 张春志 吉林省脑科医院 скачать в хорошем качестве

核磁共振可以发现哪些脑部疾病 张春志 吉林省脑科医院

核磁共振可以发现哪些脑部疾病 张春志 吉林省脑科医院 一、颅脑与脊髓MR对肿瘤脑炎性病变，脑白质病变，脑梗塞，脑先天性异常等的诊断，比CT更敏感，可发现早期的病变，定位也更加准确，对颅脑及脑干的病变因无伪影，可显示的更清楚。MRI可不用造影剂显示脑血管，发现有无动脉瘤和动脉畸形，MRI可以直接显示一些颅神经和发生在这些神经上的早期病变，MRI可直接显示脊髓的全貌，因而对脊髓肿瘤和椎管内肿瘤，脊髓白质病变，脊髓空洞，脊髓损伤等有重要的诊断价值。对椎间盘病变，MRI可显示其病变突出和膨出，显示椎管狭窄也更好，对于颈椎胸椎CT常规显示，不满意，而MRI显示更清楚。另外MRI显示椎体转移性显示清楚，另外MRI，对显示椎体转移性肿瘤十分敏感，二、头部MRI和对眼耳鼻喉的肿瘤病变显示更好，如鼻炎癌，对颅底颅神经的侵犯，MRI显示比CT更加清楚准确，MRI还可以做颈部的血管造影，显示血管异常，对颈部的肿块，MRI可显示范围及其特征以帮助定性。 What brain diseases can MRI find 1、 MR of brain and spinal cord for tumor and encephalitis, Leukoencephalopathy, Cerebral infarction, Diagnosis of congenital brain abnormalities, More sensitive than CT, Early lesions can be found, Positioning is also more accurate, There is no artifact in the pathological changes of brain and brain stem, It can be displayed more clearly. MRI can display cerebral vessels without contrast medium, It was found whether there was aneurysm or malformation, MRI can directly show some cranial nerves and early pathological changes on these nerves, MRI can directly show the whole picture of spinal cord, So for spinal cord tumors and intraspinal tumors, White matter lesion of spinal cord, Syringomyelia, Spinal cord injury has important diagnostic value. For disc lesions, MRI can show the protruding and bulging lesions, It shows that spinal stenosis is better, For routine CT findings of cervical and thoracic vertebrae, dissatisfied, MRI is clearer. In addition, MRI showed vertebral metastasis clearly, In addition, MRI, It is very sensitive to show vertebral metastasis, 2、 MRI of the head and tumor lesions of the eyes, ears, nose and throat are better, Such as rhinitis and cancer, Invasion of the cranial nerves at the base of the skull, MRI is more clear and accurate than CT, MRI can also do angiography of the neck, Showing vascular abnormalities, For a lump in the neck, MRI can show the range and its characteristics to help qualitative analysis.