Which imaging scan can reveal insufficient blood supply to the brain?

Oct 13, 2022 Source: Cainiu Health

Dr. Huang Shichang

Introduction

In general, cerebral ischemia can be detected through methods such as cranial CT, cranial MRI, head and neck vascular CT, ultrasound (B-scan), and cerebral angiography. Cranial CT provides clear imaging of the head. Cranial MRI offers higher resolution for distinguishing gray and white matter in the brain. Head and neck vascular CT helps doctors better understand the patient's condition.

In general, cerebral ischemia can be detected through various examinations such as head CT, brain MRI, head and neck vessel CT, ultrasound (B-scan), and cerebral angiography.

1. Head CT: A head CT scan provides clear imaging of the head, enabling doctors to clearly determine whether there is cerebral infarction or ischemic changes. Therefore, cerebral ischemia can be identified using head CT.

2. Brain MRI: Brain MRI offers higher resolution imaging of gray and white matter in the brain, allowing detailed visualization of intracranial structures. This helps physicians detect ischemic areas within the brain and assess the condition accordingly. Thus, cerebral ischemia can be detected via brain MRI.

3. Head and Neck Vessel CT: This examination helps doctors evaluate whether atherosclerosis, stenosis, or occlusion exists in the cerebral or cervical arteries. If cerebral ischemia is caused by conditions such as cervical spondylosis or vertebral-basilar artery stenosis, head and neck vessel CT can reveal these abnormalities.

4. Ultrasound (B-scan): Cerebral ischemia may result from stenosis of the vertebral or carotid arteries. Vertebral and carotid ultrasound can help confirm such conditions. When necessary, three-dimensional imaging of head and neck arteries may also be required.

5. Cerebral Angiography: During cerebral ischemia, cerebral angiography can precisely determine the degree of vascular stenosis. If needed, immediate interventions such as revascularization can be performed during the procedure.

Patients are advised to seek timely medical evaluation and, under a doctor's guidance, use medications such as betahistine mesylate tablets or enteric-coated aspirin tablets. Adequate rest should also be maintained in daily life.

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What should be noted in daily life for insufficient cerebral blood supply?

Patients with insufficient cerebral blood supply should pay attention to controlling their blood pressure, dietary habits, sleep schedules, blood glucose levels, and undergo regular follow-up examinations. Since inadequate cerebral blood supply in some patients may be caused by hypertension, it is important to control blood pressure in daily life to prevent worsening of the condition due to elevated blood pressure. Patients should also avoid consuming spicy and irritating foods.

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What causes dizziness due to insufficient blood supply to the brain?

Dizziness due to insufficient cerebral blood supply may be caused by conditions such as high blood lipids or hypertension. If the patient has cervical spondylosis, for example, misalignment of the sixth cervical joint, the vertebral artery may be irritated, leading to spasm or narrowing and resulting in dizziness from inadequate brain blood flow. Additionally, atherosclerosis can cause plaque fragments to break off and block small arteries, also leading to dizziness due to insufficient cerebral blood supply.