Thermography

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Thermography
- Diagnosis: different amounts of heat emitted for healthy and diseased tissue - (diff colours on thermograph)
  - (Cancerous tumors emit more heat than normal)
    - Red/yellow= something wrong Dark blue = healthy
    - Situations: Breast cancer, Heart defects, deep vein thrombosis conditions of the arteries (stroke)
- Non-invasive
  - Nothing enters the body- only detects heat leaving (being emitted)
    - Other methods- particle waves entering the body i.e. x-rays and ultrasounds
- Thermog: is safer to detect breast cancer cells than x-rays because it is non-invasive, nothing enters the body, no possibility of harm/damage x-rays= ionising
- X-rays remain preffered option in mamogr to detect breast cancer because they have a proven track record that it is less likely to miss tumor because there is so much use of it.
- Ultrasounds: Non-invasive= safe however thermog much safer
- Advantages
  - - No risk - no radiation
  - - Early detection e.g. 10 yrs
  - - Cover whole area
  - - Precise location of problem and pre pares for other tests e.g. Ultrasounds and MRI scans
  - - No pain pressure touching of equip
- Disadvantages
  - - Cameras - expensive easily damaged
  - - Image interpretations required
  - - Surfaces only
  - - Focussing difficulty with infra-red rays
  - - Image quality
Detection of infra-red radiation emitted from the body, is a useful non-invasive method of investigating possible illness.
Red/yellow= something wrong Dark blue = healthy

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