Windowing The computer allows for digital manipulation or windowing of the image and controls the various components that make up the entire CT system. level of the window: bone window or soft tissue window/lung window Window Level/ Window Center a CT number or Hounsfield unit to be...Continue reading »
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Field of View (FOV) the diameter of the area being examined the diameter of the area being imaged ( e.g. 25 cm for a head scan) diameter of image reconstruction FOV = matrix size x pixel size Scan field of view actual area of interest scanned by the...Continue reading »
Non-Contrast Axial CT. Tuberous Sclerosis. Computed Tomography is a specialized X-ray imaging technique. It may be performed “plain” or after the injection of a “Contrast Agent”. CT creates the image by using an array of individual small X-Ray sensors and a computer. By spinning the...Continue reading »