2012年2月15日星期三

CT/CAT Scan (Computed Tomography)

                          
               CT/CAT Scan (Computed Tomography) uses rotating X-rays and computers to
obtain close and detailed images of organs, blood vessels and muscles. Providing
clearer images than a normal X-ray, this type of scan is usually used for the brain,
sinuses, abdomen, pelvis and chest.
        Ultrasound
           Ultrasound, or Sonography, is a diagnostic machine that uses high frequency
sound waves to generate images. This diagnostic imaging machine is often used during
pregnancy and to identify problems with internal organs. Ultrasound is considered the
safest modality to use due to its lack of radiation, especially for expecting women.
        
          X-ray
          X-ray machines such as mobile x ray machine, c arm use X-rays, or
electromagnetic radiation, to provide images of any part of the body. Though the images
are not as detailed and clear as other forms of diagnostic imaging, they are quick and
often used to determine problems with dense areas of the body, such as bones or
ligaments.
  

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