REAL LIFE PHYSICS IN
MEDICINE
is
are essential in the development of
many scanning technologies like:

X-rays, CT scans, MRI scans
And new scanning tech...
Learning objectives
At the end of the activities you can:
1. Explain the work of the tolls
2. Distinguish the advantages a...
work
Use the electromagnetic
wave
X-rays




X-rays is very little
ordinary light can pass
through skin. It’s either
absorbed at the surface
or reflected ...
The tolls of x-rays
Taking “X rays”
Most of the X rays
pass through the
patient’s body
A photo
graphic
plate is
placed on
the other
side of
th...
Real Taking “X rays”
X-rays are absorbed by bone but can
pass through skin and soft tissuePhotographic
plate

bone

Soft tissue

X rays that ar...
X-rays are also partly absorbed by some
tissues in the body this creates a more
subtle picture.
Photographic
plate

bone

...
 The


result of the x rays scanner

What part of the body do these X Rays show?

Answer:

A knee
Advantages of Basic
X ray Imaging
X

rays are easy to produce
 X ray machines are relatively cheap
 In controlled doses...
Disadvantages of X ray Imaging





In large doses X rays can be harmful to health
Images are only “shadow prints” in o...
Check Understanding
Answer True or False
1.

2.

3.

X rays are made of the same “stuff” as
visible light. They are both f...
MRI
What do the letters stand for?

M……….. Magnetic
R………… Resonance
I…………. Imaging
MRI scanners do not use X rays.
CONCLUTION
PHYSICS is very important to
MEDICINE because use
video
Medical physics slide show
Medical physics slide show
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Medical physics slide show

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Medical physics slide show

  1. 1. REAL LIFE PHYSICS IN MEDICINE
  2. 2. is are essential in the development of many scanning technologies like: X-rays, CT scans, MRI scans And new scanning technologies PET scans and MEG
  3. 3. Learning objectives At the end of the activities you can: 1. Explain the work of the tolls 2. Distinguish the advantages and disadvantages of x-rays, CT scans, MRI scans, PET scans and MEG scans 3. shows the results of a every scanners X-rays, CT scans, MRI scans And new scanning technologies PET scans and MEG
  4. 4. work Use the electromagnetic wave
  5. 5. X-rays   X-rays is very little ordinary light can pass through skin. It’s either absorbed at the surface or reflected back. X-rays to “see” inside we need a kind of “light” with more energy. Ordinary Light X rays Skin
  6. 6. The tolls of x-rays
  7. 7. Taking “X rays” Most of the X rays pass through the patient’s body A photo graphic plate is placed on the other side of the patient The patient is placed in front of a source of X RAYS
  8. 8. Real Taking “X rays”
  9. 9. X-rays are absorbed by bone but can pass through skin and soft tissuePhotographic plate bone Soft tissue X rays that are absorbed in the photographic plate cause chemical changes. These show as darkened areas when the plate is developed.
  10. 10. X-rays are also partly absorbed by some tissues in the body this creates a more subtle picture. Photographic plate bone Soft tissue
  11. 11.  The  result of the x rays scanner What part of the body do these X Rays show? Answer: A knee
  12. 12. Advantages of Basic X ray Imaging X rays are easy to produce  X ray machines are relatively cheap  In controlled doses X ray images are safe to the patient
  13. 13. Disadvantages of X ray Imaging    In large doses X rays can be harmful to health Images are only “shadow prints” in one “plane”…..no 3D information Imaging of soft tissues and organs is not always very detailed
  14. 14. Check Understanding Answer True or False 1. 2. 3. X rays are made of the same “stuff” as visible light. They are both forms of “electromagnetic radiation”. X rays were discovered completely by accident during a physics experiment carried out in 1965. X rays can damage healthy tissues.
  15. 15. MRI What do the letters stand for? M……….. Magnetic R………… Resonance I…………. Imaging MRI scanners do not use X rays.
  16. 16. CONCLUTION PHYSICS is very important to MEDICINE because use
  17. 17. video
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