Modern medical imaging is updating the traditional concept of neurological diseases—February 4, 1994

Modern medical imaging is updating the traditional concept of neurological diseases—February 4, 1994

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CT diagnosis of cerebral hemorrhage achieves 100% accuracy and is essentially consistent with pathological diagnosis. Although CT diagnosis of cerebral infarction has a small number of false positives, it can completely rule out cerebral hemorrhage. Clinically, cerebral infarction and cerebral hemorrhage are often misdiagnosed for each other; sometimes patients with milder symptoms and clear cerebrospinal fluid are mistakenly diagnosed as having cerebral infarction. In recent years, the incidence of intracranial metastatic cancer in elderly patients has increased significantly. Epilepsy patients are usually caused by brain tumors, parasites, vascular malformations, tuberous sclerosis, traumatic hematomas, cerebral arterial sclerosis, etc., and CT scans can easily provide good differentiation in these cases. Cerebellar hemorrhage and brainstem hemorrhage often present with rapid onset, early coma, and a short disease course, leading to a pre-mortem diagnosis of subarachnoid hemorrhage; however, with the aid of CT and digital subtraction angiography (DSA), a definitive diagnosis can now be made. Previously, it was believed that such conditions were untreatable, but current CT observations indicate that a small portion of patients can still recover.