medical imaging

Introduction PET scan (positron emission tomography Scan) is a functional scanning technique that uses radiotracers (radioactive substances), a special camera, and a computer to project and measure variations in metabolic processes, and other physical activities inside the body including blood flow, local chemical composition, as well as absorption. The scan reveals both normal and abnormal metabolic or biochemical activities of the tissues and … Read more

Introduction CT scan (or Computed tomography scan) is a computerized x-ray imaging technique in which a narrow beam of x-rays is focused on a person and rotated quickly around the body that produces signals that are processed by the computer to create cross-sectional tomographic images (slices). CT scans are also called Computed Axial Tomography (CAT) … Read more

Introduction An electroencephalogram (EEG) is a diagnostic test which measures the electrical activity of the brain or the electrical signals sent between brain cells. This electrical activity is seen on a computer screen as ‘brain waves’, which are interpreted by a specialist doctor or a technician. EEG is usually done to identify seizures in clinical … Read more

Introduction Magnetic resonance imaging (MRI) scan is a type of scan that uses a large magnet or strong magnetic field, radio waves, and a computer to create a thorough, cross-sectional image of internal body organs, tissues, and different structures. Mechanism of MRI Scan Types of Magnetic Resonance Imaging Indications of Magnetic Resonance Imaging MRI has … Read more