Introduction to four effective methods for diagnosing brain cancer

The brain is the most important organ of the human body, controlling all of the human nervous system. However, brain cancer is a serious brain disease that causes serious damage to the patient. So what are the common diagnostic methods for brain cancer ? Here are some common diagnostic methods for brain cancer.

In general, the common diagnosis methods for brain cancer are:

1. EEG is a diagnostic method for brain cancer. It is valuable for locating fast-growing brain tumors in the cerebral hemispheres, where the amplitude and frequency of the diseased side can be seen to be reduced, but it is not very helpful for diagnosing brain tumors in the midline, deep in the hemisphere, and under the tentorium. The EEG topography developed after the 1970s can graphically display the location and range of intracranial lesions, and is more sensitive to the diagnosis of brain tumors than conventional EEG. It is mainly manifested as abnormal slow wave power in the tumor area and around the tumor area, and is an effective screening method before CT examination.

2. Brain CT scan: The detection rate of brain tumors can reach more than 90%. It is easy to show the size, shape, number, location, density and nature of the lesions, and the anatomical relationship is clear. It is currently the main diagnostic method for brain cancer.

3. Fundus examination is also one of the diagnostic methods for brain cancer. Observe whether there is optic nerve head edema. Optic nerve head edema is a sign of increased intracranial pressure. It is called the "three symptoms" of increased intracranial pressure together with headache and vomiting. However, it is only seen in one-quarter of patients, so the possibility of brain tumor cannot be simply ruled out by a negative eye examination.

4. Head X-ray. This method of diagnosing brain cancer helps to understand whether there is increased intracranial pressure, local destruction or hyperplasia of the skull, whether the sella turcica is enlarged, the displacement of pineal calcification and pathological calcification in the brain tumor, etc. It is helpful for positioning and qualitative diagnosis, but the positive rate of X-ray is less than one-third, so brain tumors cannot be ruled out due to negative X-rays.

The above is an introduction to the common diagnosis methods of brain cancer. I believe everyone has some understanding of this. For more questions about the diagnosis of brain cancer, you can consult our online experts, who will give you detailed answers.