Cerebral insufficiency can be detected by what tests? do you really know? Tell you the answer today

Introduction: What can be done to detect cerebral insufficiency? do you really know? Tell you the answer today.

Insufficient blood supply to the brain, what needs to be checked? Although the volume of the brain is very small, its blood flow accounts for about 20-30% of our total blood flow. After cardiac arrest for about 6 minutes, irreversible damage to the brain will occur, which shows how high the requirement of blood supply from the brain is.

As we grow older, most of the brain lesions are atherosclerosis, the formation of plaques, leading to cerebral ischemic infarction, or cerebral hemorrhage.

Then if the symptoms of cerebral insufficiency appear, the first basic check is to be done, including blood pressure, blood sugar, blood lipids, blood routine and blood flow examination. If these tests are normal, you need to consider whether it is a problem with intracranial blood vessels or neck blood vessels. The following aspects need to be checked.

1. Brain CTA: In fact, it is also called brain CT angiography. This is a non-invasive vascular imaging technique. Cranial CTA is to inject iodine contrast agent into the vein of the examinee quickly.

Through the blood circulation of the body and then CT examination, after the image is processed by the computer, the system of intracranial blood vessels can be displayed in three dimensions, and CTA can clearly display the cerebral artery ring (Circle of Willis).

As well as the anterior, middle and posterior cerebral arteries and their main branches, they can provide a very important diagnostic basis for occlusive vascular lesions. The diagnosis of ischemic cerebrovascular disease can be advanced to 2 hours after the onset.

2. Cranial MRA: In fact, it is also called magnetic resonance angiography. MRA can not only provide signals of blood vessel morphology, but also provide quantitative information such as the direction, velocity, and flow of blood flow.

Brain MRA can diagnose intracranial vascular sclerosis, arteriovenous malformations, aneurysms, abnormal veins and venous sinuses, and can measure cerebral blood flow. It can be used to find cerebral insufficiency caused by cerebrovascular disease. Of course, this test does not require contrast agents. But for accuracy, it is not as good as cranial CTA.

If a plain MRI scan of the brain is done, an MRA examination can be added at will. It is basically the same kind of inspection now. Not only can you see if there is any problem with the cranial parenchyma, you can also take a general look at the lesions of the cranial and cerebral blood vessels.

3. Cerebral angiography: Neither CTA nor MRA is the most accurate for the diagnosis of cerebrovascular disease. Only digital silhouette cerebral angiography, that is, DSA, is the gold standard. The disadvantage of DSA is that it requires arterial cannulation, and there is a small amount of trauma.

DSA can clearly display arterial lumen stenosis, occlusion, establishment of collateral circulation, etc., can accurately locate, and can understand the scope and severity of lesions in real time. This inspection has certain radiation, and the price is relatively expensive, but it needs to use a contrast agent.

Not only can you see the blood vessels in the neck of the body, but also the brain. In fact, it is branched from the aorta, and the arteries leading to the top of the skull can be seen. Generally, the head and neck are scanned in this way, and the price is about 2,000.

4. Transcranial Doppler Ultrasound: Transcranial Color Doppler Ultrasound. This is a color Doppler ultrasound of cerebral blood vessels and cervical blood vessels. Different from ordinary color Doppler ultrasound, transcranial Doppler ultrasound can penetrate the skull. At the thinner part and the natural orifice, the Doppler echo signal of the main artery at the base of the skull is obtained.

The main check is whether there is cerebral vascular stenosis, spasm or whether there is insufficient blood supply to the brain. This check will not cause any harm to our body.

5. Color Doppler Ultrasound of Cervical Vascular: Ultrasound of cervical vascular can detect multiple blood vessels in the neck of the body, including the carotid system and the vertebral arteries. Look at the body's blood vessels for malformations, narrowing, atherosclerosis, and plaque buildup in arteries. This is a non-invasive and radiation-free test.

So what are the common causes (diseases) of cerebral ischemia?

The above tests are actually based on the condition of the body's blood vessels themselves. In clinical practice, it is necessary to carry out relevant examination and treatment according to the cause.

The more common diseases that cause cerebral ischemia symptoms are atherosclerosis and cervical vertebral diseases. Treatment needs to improve the symptoms of cerebral ischemia and also need to treat related causes.

1. Atherosclerosis: Many atherosclerosis have hypertension, hyperlipidemia or diabetes. Antihypertensive, lipid-lowering, and hypoglycemic treatments are required. Only after these causes are controlled, the symptoms of cerebrovascular ischemia will be fundamentally improved.

2. Cervical spondylosis: The vertebral artery type of cervical spondylosis is mainly due to the degeneration of the cervical intervertebral disc compressing the vertebral artery, resulting in insufficient blood supply to the brain. In the treatment, it is necessary to relieve the compression of the cervical vertebral artery on the vertebral artery to fundamentally relieve cerebral ischemia. symptoms.

And it is often said that the lifespan of blood vessels is the lifespan of our people. In fact, it is very reasonable. The symptoms of cerebral ischemia are actually a warning of the body's red light, which must be taken seriously.