第七章单元测试
- Which disease in the brain usually shows ring enhancement on contrast-enhanced CT images? （ ）
- Which sign is inconsistent with the CT features of cerebral metastases? （ ）
- The most common brain tumor is （ ）
- The most common location for intracranial aneurysms is （ ）
- Most grade 4 astrocytomas have significant peripheral edema. （ ）
- In the subacute stage, hematoma is hyper-intense both on T1WI and on T2WI. （ ）
- Acute epidural hematoma shows crescent-shaped high-density beneath the cranial bone on CT.（ ）
- CT is more sensitive than MRI in detecting acute subarachnoid hemorrhage.（ ）
A:Grade 2 astrocytoma B:Pituitary adenoma C:Brain abscess D:Cerebral infarction E:Meningioma
答案:Brain abscess
A:Multiple scattered ring-shaped shadows B:Multiple nodules C:No contrast-enhancement D:Obvious edema surrounding the tumor E:Superficial location
A:Pituitary tumor B:Meningioma C:Astrocytoma D:Germinoma E:Craniopharyngioma
A:Basilar artery and its branches B:Anterior cerebral artery and its branches C:Willis circle and adjacent branches D:Middle cerebral artery and its branches E:Posterior cerebral artery and its branches
A:False B:True
A:True B:False
A:True B:False
A:False B:True
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