Cerebral angiography is the use of a contrast agent from inside the blood vessels to see exactly where the lesions are occurring, in addition to examining the tissue structure of the brain. The two are performed together to make the test more accurate.
Cerebral angiography is mainly performed by injecting a contrast agent into the blood vessels, and through the circulation of blood in the body, it is possible to observe the shape of the blood vessels, and to observe whether there are any deformities, stenosis, defects and obstructions.
Magnetic resonance examination is to resonate with the hydrogen nuclei in the human body through a strong external magnetic field, and ultimately to understand the substance of the brain, such as the central nervous system, the brainstem, spinal cord imaging conditions through the way of professional equipment, which can be used for diagnosis of tumors, infections, degeneration and other lesions in the head.
The combination of the above two examinations can provide a comprehensive view of the brain, expand the scope of the examination and enhance the accuracy of the examination.