Brain imaging is useful to investigate the workings of the human central nervous system. To investigate brain physiology like pharmacology, brain metabolism, and blood oxygenation. Neuroimaging produces images of the brain utilizing a number of technologies directly or indirectly. Radiology is a branch of medicine that procedures imaging technology to analyze and cure disease. Radiology may be alienated into two different parts, Diagnostic radiology, and Interventional radiology. Doctors who specialize in radiology are called Radiologists. Radiologists are medical doctors that specify in diagnosing and cure of injuries and diseases by medical imaging (Radiology) procedures such as X-rays, Magnetic Resonance Imaging (MRI), Computed Tomography (CT), Nuclear medicine, Positron Emission Tomography (PET) and Ultrasound.