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Detecting lung and breast cancer

Detecting lung and breast cancer. By Raven, Jenaya, Sharia, Isaac and Aman. X-Rays. A kind of high energy radiation which give off photons The photons are absorbed by the dense parts within the body. They turn white whereas softer parts turn darker. X-rays are produced by electrodes.

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Detecting lung and breast cancer

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  1. Detecting lung and breast cancer By Raven, Jenaya, Sharia, Isaac and Aman

  2. X-Rays • A kind of high energy radiation which give off photons • The photons are absorbed by the dense parts within the body. They turn white whereas softer parts turn darker. • X-rays are produced by electrodes. • X-rays are used for detecting elements of the body such as bones and tumours

  3. Mammography • Used to detect tumours or any other unusual lumps in the breasts • Low dose X-rays are passed through the breasts • If any strange lumps are found , further tests are carried out to check whether the patient has breast cancer.

  4. CT SCAN • Also known as CAT scans (computerised axial tomography) • The patient has to lie on a platform which slowly moves through a hole in the CT machine. • X-ray pictures are taken from many different angles of the body and the machine forms a 3D image which makes it easier to see a tumour

  5. Thermography • Sensitive to infrared radiation • Cancer cells divide quickly which means they give off more heat • Tumours show up as warmer area which allows the tumour to be seen easier • The warmer the are the more infrared radiation given off

  6. ultrasound • Uses sound waves to build up an image of body parts that may contain tumours • Detects tumours in soft parts of the body e.g. Liver • Its portable and cheap

  7. MRI – Magnetic Resonance Imaging • Patient lies inside a very large magnet • Machine measures the magnetic field in different parts of the body • Computer builds up a three dimensional image • Very detailed image • Expensive • Not painful, can be uncomfortable as you must stay in the same position for a long amount of time

  8. Pet scan • Stands for position emission tomography PET scanners are very expensive. Metabolically active means that more chemical reactions take place Patient is injected with a radioactive substance Most metabolically active parts give off more gamma rays. Substance breaks down and releases gamma rays Gamma rays are used to build an image of the body Gamma rays are detected

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