There is a kind of three dimensional imaging equipment for the brain in medicine, please consult the

It is an MRI device, which is an MRI device, but its appearance is different from the one we are common, and the old one is more advanced. The principle is the same. It can be 3D brain imaging, 3D bone imaging, and 3D vascular imaging.

The principle is to use water signals to image.

The reference is as follows: Resonance imaging, English name of resonance imaging (referred to as MRI), is another major progress in medical imaging diagnostic technology after CT. Its basic principle comes from the discovery of American scholars Bloch and Purcell in 1946 Under the action of the external magnetic field, some protons (including hydrogen protons in the human body) precession around the main magnetic field (external magnetic field) increase the precession angle under the action of short-term radio frequency radio waves, and when the radio frequency radio waves stop, those protons will gradually return to their original state, and at the same time release the same frequency of the excitation wave radio frequency radio frequency signal, this physical phenomenon is called nuclear magnetic resonance.

Blochpurcell was awarded the Nobel Prize in Physics in 1952 for this contribution. After a lapse of 27 years, the British scholar Lauterbur used this principle to induce nuclear magnetic resonance radio waves point by point by adding a gradient magnetic field to the main magnetic field, and then obtained a two-dimensional magnetic resonance image through complex computer processing and reconstruction.

It is not possible to generate a three-dimensional image by rotating it.

There are two main brain functional imaging techniques – PET and FMRI

In view of the important role of brain functional imaging technology, researchers in various fields of psychology have begun to move forward.

to use it more and more to serve their research. So far, many brain functional imaging techniques have been successfully developed.

surgery, such as functional magnetic resonance imaging (FMRI),

Positron emission tomography (PET), single positron emission tomography.

Single Positron Emission Computerized Tomography Spect

Event-related potential (ERP), electroencephalograph (EEG),

Magnetoencephalography (MEG) and near-infrared spectroscopy

spectroscopy) and so on.

There are computed tomography, positron emission imaging and magnetic resonance imaging.

Brain imaging is the use of the latest technology that allows neuroscientists to "see inside the living brain". These brain imaging methods can help neuroscientists understand the relationship between specific regions of the brain and their functional codes.

Localization of brain regions affected by neurological disorders. Inventing new ways to ** brain diseases.

Brain imaging is divided into the following five categories.

1. Computed Tomography (CT Scan): During CT scanning, a beam of X-rays passes through the head, and the photosensitive film forms an image. This method can produce cross-sectional imaging of the brain. This method only shows brain structure, not brain function.

2. Positron emission tomography (PET): Scanners can produce brain images by detecting injected or inhaled radioactivity. Radioactive materials that are often used include oxygen, freon, carbon and nitrogen.

These substances enter the bloodstream and are transported to the areas of the brain where they are used. As a result, oxygen and glucose accumulate in the metabolically active brain regions. When radioactive material decays, it emits a neutron and a positron.

When a positron hits an electron, both are destroyed, emitting two gamma rays. Gamma ray detectors record the areas of the brain that emit gamma rays. This approach provides a functional view of the brain.

Advantages: 1. It provides images of brain activity. Cons:

1. Expensive; 2. Use of radioactive substances.

3. Magnetic Resonance Imaging (MRI): Magnetic resonance imaging uses radio frequency signals to detect, which are generated by radio waves transferred in a magnetic field. It provides an anatomical view of the brain.

Advantages: 1. No X-rays or radioactive materials; 2. Provide detailed brain images of different dimensions; 3. Safe**, non-invasive; 4. The patient does not need to make special preparations (except for removing all metal objects), and the patient can eat before. Cons:

1. Expensive; 2. Not suitable for patients with metal objects, such as pacemakers. 3. It is not suitable for uncooperative patients, because the patient must lie down quietly.

4. It is not suitable for patients with claustrophobia (fear of small places), but now there are new magnetic resonance systems with a more spacious design.

4. Functional Magnetic Resonance Imaging (FMRI): Functional magnetic resonance imaging detects changes in blood flow to specific brain regions. It provides both an anatomical and functional view of the brain.

5. Angiography: After the dye is injected into the bloodstream, angiography uses a beam of X-rays. This method can provide images of the cerebrovascular vessels.