For cranial aneurysms and arterial stenosis diseases, it is better to do angiography DSA than PET.

Of course, DSA works well!

PET is suitable for the following:

1) Oncology patients. At present, 85% of PET examination is used for the examination of tumors, because the vast majority of malignant tumors have high glucose metabolism, and FDG, as a compound similar to the structure of glucose, will accumulate in malignant tumor cells after intravenous injection, so PET can distinguish malignant tumors from benign tumors and normal tissues, and can also distinguish the first tumor from surrounding necrosis and scar tissue, and is now mostly used for the examination of lung cancer, breast cancer, colorectal cancer, ovarian cancer, lymphoma, melanoma, etc., with a diagnostic accuracy of 90% Above. This examination can clearly determine whether the malignant tumor has metastasized, and the location of metastasis, which plays an important role in guiding the stage of tumor diagnosis, whether surgery is needed and the extent of surgical resection.

According to foreign data, nearly one-third of cancer patients need to change their original surgical plan after PET examination before surgery. In the early stage of tumor chemotherapy and radiotherapy, PET examination can find out whether the tumor has taken effect and help determine the next step. Some data have shown that the metabolic changes of tumor cells can be detected as early as 24 hours after tumor chemotherapy and radiotherapy.

2) Neurological disorders and psychiatric patients. It can be used for the localization of epilepsy foci, early diagnosis and differentiation of senile dementia, evaluation of Parkinson's disease, and judgment of tissue damage and survival after cerebral infarction. PET examination has shown unique advantages in the pathological diagnosis and evaluation of psychiatric disorders, and is expected to make breakthroughs in the near future.

It has an important guiding role in the development of new drugs for AIDS encephalopathy and drug rehabilitation.

3) Patients with cardiovascular disease. It can detect the location and extent of myocardial ischemia in coronary heart disease, and accurately evaluate myocardial viability to determine whether thrombolysis**, coronary stent placement or coronary artery bypass surgery are required. Through the analysis of myocardial blood flow, combined with drug load, the coronary reserve capacity can be measured and the best effect of coronary heart disease can be evaluated.

PET can be done without hospitalization.

It can be used in the following cases.

Intracranial vascular diseases, such as atherosclerosis, embolism, stenosis, occlusive disease, arterial disease, arteriovenous malformation, arteriovenous fistula, etc.

Intracranial space-occupying lesions, such as intracranial tumors, abscesses, cysts, hematomas, etc.

Various extracerebral hematomas due to traumatic brain injury.

After the operation, the cerebrovascular circumambulatory state was observed.

Cerebral angiography is one of the most effective ways to check for cerebrovascular disease. It is by injecting an iodine-containing contrast agent into the internal carotid artery or vertebral artery to visualize the cerebral blood vessels, so as to understand the morphology and lesions of the cerebrovascular family reed, as well as the nature and extent of the lesions. This test is of particular value in diagnosing cerebrovascular disease.

Cerebral angiography is done.

1) Patients with cerebral hemorrhage who have indications for surgical rescue, but the hematoma position is not clear, and cerebral angiography is required.

2) Patients with cerebral hemorrhage suspected of epidural or subdural hematoma.

3) Subarachnoid hemorrhage is mostly caused by intracranial aneurysms or vascular malformations. In order to confirm the diagnosis and for surgery**, cerebral angiography must be done.

4) When a patient with a brain tumor has a stroke and cannot be distinguished from cerebral hemorrhage or cerebral infarction, cerebral angiography can also be considered to help the differential diagnosis.

5) When the internal carotid artery is diseased, angiography should be performed if there is a surgical condition.

CTA is a non-invasive examination method with high safety, DSA is an investigative interventional surgery, there is a certain risk, but the risk is also very small, now this technology is very mature, the better the hospital is, of course, the safer. If it is clear that there is an aneurysm after CTA, if you want to proceed to the next step**, you can do surgery, you can also do interventional surgery, and if you do interventional surgery, you will also have DSA imaging during the operation. In addition to CTA and DSA, MRA can also be done, which is a type of magnetic resonance examination, but DSA angiography is the gold standard for diagnosing aneurysms.

My opinion is that CTA or MRA can be done first, and if there is an aneurysm, DSA can be done at the same time**.

This is also a more scientific question of how to check for a brain aneurysm.

According to the pathology, cerebral aneurysms are still used: 1. CT examination: in the acute stage of hemorrhage, the positive rate of CT to confirm whether there is subarachnoid hemorrhage (SAH) is extremely high; 2. Cerebral angiography:

If the first contrast is negative, the contrast should be repeated after 3 to 4 weeks. CT angiography (CTA).

Hello, whether the hemangioma is single or multiple, it is a benign tumor of the liver, and the probability of malignant transformation is very low, **The method is mainly non-surgical** and regular observation, the tumor is large and the patient has obvious symptoms (mainly abdominal pain) persistent and conservative**ineffective; Located in the superficial part of the liver, it is easy to remove or to avoid rupture; As for whether to choose surgery or intervention, it must be based on the specific situation of the tumor, for hemangiomas with large blood supply vessels or collateral circulation vessels, the interventional effect is not ideal, and the surgical effect is better. For hemangiomas with only a few blood vessels, the intervention effect is better.

The intracerebral hemorrhage was not related to the aneurysm. The aneurysm is a cervical eye, and it is estimated that it will be intervened with a stent-assisted coil**, and because the surgery is risky, it can also be temporarily conservative** and followed up regularly. If you do intervention, you need to take antiplatelet drugs for a long time, and you are prone to bleeding.

The intracranial nerves are complex, and sometimes surgery to remove the tumor will inevitably cause damage to the cranial nerves. This one is very common. In your case, it is very difficult to recover at the moment.

It is recommended that you go to a hospital with the most advanced neurological field in China. Most patients after aneurysm surgery can return to living and working as normal people. However, for a period of time after surgery, attention should be paid to safety, head trauma or trauma, and dangerous work should be avoided.

Because a small number of patients may have seizures due to bleeding into the brain, oral antiepileptic drugs may be used if necessary. In addition, it is necessary to pay more attention to diet and rest

It depends on the shape of the aneurysm.

Narrow-based aneurysms should be used as much as possible, with little trauma and good effect, but the cost is relatively high, but wide-based aneurysms can only be surgical**, so the main thing is to see what the nature of the tumor is suitable for**, and what the family conditions allow**.

Wishing your family good health.

The key is the doctor's surgical level, and the intervention also depends on the doctor's personal level, the aneurysm is more independent, the operation is ligation, the intervention is embolization, and the patient's general condition is determined.

1. Since cerebral angiography has been done and the anterior communicating aneurysm has been found, it is natural to measure its size, whether the neck is wide or narrow, whether there is a thrombosis, etc., if the doctor in the interventional department thinks that the embolization can be intervened, it is naturally better to intervene. At present, the vast majority of intracranial aneurysms can be intervened**, and their efficacy is not inferior to that of craniotomy. The advantages of intervening are:

Safe, less traumatic, fast recovery; The disadvantage is that the technical requirements are high, the cost is high, at least more than 50,000 yuan, if the aneurysm is relatively large, multiple coils are required, and the cost is even more than 100,000; 2. Generally, the opening of the intracranial aneurysm is wide, and it is not appropriate to place a coil before considering craniotomy; 3. If an intracranial aneurysm is found, it must be **, especially after bleeding, if it is not **, it is likely to bleed again, and it will be much more difficult to do so.

Nothing is thorough, it's just a matter of time.

Angiography is the introduction of iodine contrast media into the target blood vessels to visualize the target blood vessels for diagnostic purposes.

Diagnosis of cerebrovascular disease.

There are three commonly used methods of cerebral angiography. The first type is cerebral angiography (MRA) done by an MRI machine, the second is a cerebral angiography (CTA) done by a CT machine, and the third type is a cerebral angiography (DSA) that requires a cannula of the femoral artery at the base of the thigh and is done under a digital subtraction angiography machine.

MRA is characterized by being non-invasive, can even be done without the injection of contrast agent, and can be performed at the same time as the MRI, but the resolution is the worst and can be used as a screening method.

CTA is also a non-invasive method that requires the injection of iodine-containing contrast agent, and it is necessary to know the kidney function (the contrast agent is excreted through the kidneys) before doing it, which can be done quickly, with less pain for the patient, and the resolution is also improved than that of MRA, which can be used as a rapid method for diagnosing brain aneurysms.

DSA is the most accurate cerebral angiography method with the highest resolution and is the "gold standard" for diagnosing cerebrovascular diseases. The disadvantage is that arterial cannulation is required, and there is a small amount of trauma.

In clinical practice, if the situation of cerebrovascular disease is considered by MRA or CTA examination, especially when further ** is required, it is often necessary to finally confirm the diagnosis through DSA examination. As for.

Subarachnoid hemorrhage.

may be treated with CTA in an emergency department, such as a cerebral aneurysm.

DSA can be performed along with interventional embolization**.

DSA is also necessary for regular follow-up after craniotomy or interventional embolization** of a cerebral aneurysm.

After reading so much, I will make a few sentences, CTA is basically a non-invasive operation, just intravenous injection, and the shape of the blood vessels in the brain is made by software after enhancement, which is relatively less invasive. However, DSA whole cerebrovascular digital subtraction imaging is as mentioned upstairs, catheterization in the femoral artery, if the operation is proficient, it can be done in half an hour. For now, DSA is the gold standard for diagnosing cerebrovascular diseases.

However, there are also many neurosurgeons in foreign countries who can basically confirm the diagnosis and undergo surgery only through CTA examination**. Therefore, CTA is still necessary, and further DSA examination is likely.

If you feel uncomfortable, if you have not suffered a traumatic head injury, then ask an internist to see if you really need to do a head CT examination.

In medicine, it is also called non-traumatic angiography technology (referred to as CT angiography or CTA), angiography is an interventional detection method, the contrast agent is injected into the blood vessels, because X-ray does not penetrate the contrast agent, angiography is to use this characteristic to diagnose vascular lesions through the image displayed by the contrast agent under X-ray.

The most commonly used angiography agent is iodine, and in rare cases where iodine is contraindicated, carbon dioxide is used as a contrast agent.

CT angiography (CTA) refers to the intravenous injection of iodine-containing contrast agent, after the computer processes the image, the intracranial vascular system can be displayed in three dimensions, which can replace some DSA examinations. CTA can clearly visualize the cerebral arterial ring (Willis ring), as well as the anterior, middle, and posterior cerebral arteries and their major branches, and can provide an important diagnostic basis for occlusive vascular disease. The diagnosis of ischemic cerebrovascular disease can be advanced to 2 hours after the onset of the disease.

With the development of interventional radiology, angiography has become an important diagnostic method in clinical practice, especially in interventional radiology. Angiography plays an important role in the diagnosis of head and neck and central nervous system diseases, cardiovascular and macrovascular diseases, and tumors and peripheral vascular diseases.

For this kind of disease, traditional Chinese medicine is generally classified as stroke, and the traditional Chinese medicine that invigorates blood circulation and dispels blood stasis is used immediately, and there is no need to do any examination.

If you have to do all kinds of tests, an angiogram is enough.

Angiography is done, and after the mass lesion is ruled out, the headache is most likely related to the blood supply to the head.

Hello! Headache refers to a type of pain with headache as the main symptom. It is one of the more common clinical symptoms.

Headaches are often caused by overwork, nervousness, cold, and lack of sleep. After rest, sufficient sleep will disappear, but headaches caused by certain diseases are a signal that cannot be recovered after rest, and should be taken seriously by burning and respecting. The causes of headache are complex, including intracranial and extracranial; There are local and systemic skulls.

It needs to be identified ** and then the symptoms **. Hope soon**!!