Medical Science

Application of MEDICAL APPLIANCES

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MRI Scan

ADVANTAGE

  • Are the scan does not expose patients to radiation.
  • it shows tissue structures
  • it can show blood circulation in organs

DISADVANTAGE

  • Very expensive to operate
  • Results can be easily effected by slight movement
  • the patient can feel claustrophobic
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X- RAY'S

X RAYS are electromagnetic ray's ,they can expose photographic film, they can pass through soft tissue, and they cannot pass through bone.

pros

  • Good bone resolution
  • cheap and easy

cons

  • poor soft tissue resolution
  • high voltage supplies can be hazardous
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COMPUTED AXIAL TOMOGRAPHY SCANS (CAT)

Pros

  • Can show cross-sections or 3D images
  • can show soft tissue images like the brain
  • more available than MRI

Cons

  • More ionising radiation
  • very expensive to use
  • may not distinguish scar tissue from active cancerous tissue
  • the confined spaces maybe problematic for the claustrophobic patient
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