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http://www.nlm.nih.gov/medlineplus/ultrasound.html

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Ultrasound are a type of imaging, it uses high frequency

sound waves to locate and view the organs in the body.

Doctors use ultrasound to view heart, liver, kidney, blood vessels

and other organs. For example during pregnancy the doctors use

it to view the fetus. Ultrasound is different compare to X-rays

because ultrasounds do not expose you to radiation unlike X-rays.

In an ultrasound test, when you lie down on the table, a professio-

nal doctor moves a device called "transducer" over part of your

body. It sends out sound waves which bounce around in your

body. The transducer collects and captures back the soundwaves.

Then the transducer creates images based on the sound waves.

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http://www.allaboutvision.

com/visionsurgery/lasik.ht

m

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LASIK stands for "Laser-assisted in situ keratomileusis" meaning laser eye surgery

This highly specialized laser uses cool ultraviolet beam to remove small ammount

of eye tissue from the cornea to reshape it so it more accurately focuses light on

the retina for improved vision. For nearsighted people they flatten the cornea but

for farsighted people, a "steeper cornea is desired. After the reshape of the cornea

they lay back the flip part of the cornea to covering where the tissue was removed.

Then the cornea is allowed heal naturally. With this technic no bandages or stitiches

are needed. Physics helped us alot in this surgery to avoid accidents or harm to the

eye!

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http://en.wikipedia.org/wiki/X-ray

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http://www.nlm.nih.gov/medlineplus/ency/article/003337.htm

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X-rays are a type of electromagnetic radiation. X-rays send particles through out the body and then the images

are recorded on computer or printed picture. Parts of the body that are dense like bones will block X-rays

particles and bones etc. will appear white. Metal and other mechanical media will also appear white. Thats why

doctors use X-rays in surgeries so they can find the harmed bones or metal objects in the body. Body parts such as

muscle, fat and empty areas are appeared grey or black. X-rays are mostly painless, maybe sometimes uncomfortable

positions may be needed but its mostly harmless. X-rays may have a rare chance of to give you cancer

and defects if you face X-ray radiations over time. X-rays are more sensitive to babies in womb. Xrays were accidentaly

discovered by Wilhem Rongten in 1895.

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http://upload.wikimedia.org/wikiped
ia/comm
ons/9/90/Flexibles_Endoskop.jpg

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Endoscopes help the doctors find out the problem in the patients abdomen

with out cutting through the body and surgeries are also done with endoscopes.

Endoscope is a bit similar to a bendy telescope but way more flexible. It is made

of optical quality glass or plastic. Endoscopes carry light from a bright lamp to the

patiants body. The light bounces back to the other side of the endoscope or to the

other endoscopes. At the end of the telescope is a video camera or a lense to help

the doctor see in the body!

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22.4.2015 We searched information about LASIK.

29.4.2015 Shayan searched information about Physics in medicine and Markus found information about the X-rays.

5.2.2015 Shayan works on the endoscope.

6.5.2015 Shayan works more on xray, LASIK and ultrasound

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Physics has made a large and important addition to the development of modern medicine,

from the establishment of imaging new methods such as MRI (Magnetic Resonance Imaging)

and PET(Positron Emission Tomography), to the development

technologies and devices. There also alot mroe areas the physics has a impact on.

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http://38.media.tumblr.com/f5fb6fcb4b28e4a48b8325a451b6da5f/tumblr_inline_mlefa4gLZ51qz4rgp.jpg