How Does a CT Scan Work?
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- Опубліковано 21 сер 2024
- NIBIB's 60 Seconds of Science explains how CT scans work.
CT images are more detailed than conventional x-ray images. Image slices that CT scans produce can be 2 or 3 dimensional and can reveal abnormal structures or help the physician plan and monitor treatments.
Music by longzijun 'Chillvolution.'
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CT is almost 50 years here now. Invented by Sir Hounsfield in UK and developed by EMI with all the profit of selling Beatles records.
A little mistake, the last picture (@1'11) showed a MRI system, not a CT system.
Ur doing an awesome work keep doing I m studying biomedical engineering I have various dout but it gets cleared now👍good job
Simple is beautiful.
Thank you, Nibib and Long Zi Jun.
I did 6 minutes of mri scans and I felt fine in the hole in the mri and I can mimic the sounds of the mri machine
I would feel claustrophobic asf
good job.
but note that that last fram in the video is for MRI system.
To short video
@@nandita118 agreed....this doesn't begin to scratch the surface. Might be adequate for the layperson that knows nothing about ct imagery
@@nandita118 *too
How many CT scans are dangerous to health ? I read 3 or more CT scans are equivalent to same dosage as those who survived Hiroshima.
I already had 2 scans in half a year period.
I was reading cancer probability increases , just not sure how much
Don't worry, with the development of the CT technology, the dose of X-ray required for a CT scan has been so low that you don't have to worry about that. Humans are not that fragile.
Having two scans does not pose much risk. Yes, they use ionizing radiation which damages DNA. That DNA is repaired or kills itself within a few hours of a scan. The radiation dosing of CT scans has gone down significantly over the last 10 years. A CT scan increases cancer risk very slightly. At most, by 1% or so. As for Hiroshima, maybe the same dose as those who were 20 miles away from the blast. A CT scan is like getting a sunburn on the inside of your body. 1 sunburn does increase you chance of skin cancer, but very minimally. Now if you have had like 15 of them in the same area, then that may be a deferent story.
Edit: Any radiation does under 100 mSv is not shown to cause cancer. An average CT scan uses about 4 mSv. You are exposed to 3-4 mSv naturally every year just through background radiation. Even more if you live at higher altitudes.
How does a CT scan work? 1. You go to the hospital for a stubbed toe or a knee injury or a belly ache. 2. The doctor, and other personnel, order a CT scan whether you need one or not, often being monitored by administrative personnel who will give them grief if their percentages aren't high enough. 3. You wait for a long time, for lab results such as kidney function and pregnancy tests, to come back, to see if it's safe to inject contrast media (so-called "dye") and to see if it's safe to scan you. 4. You get one or more CT scans no matter what the lab results are. 5. You and/or your insurance get billed for lots of money, some of which the hospital or facility may actually get.
What is difference between m r I test and c t scan can someone tell me something about it???
Arslan Ali
CT used Xrays to acquire the image and MRI uses electromagnetism to acquire the image. No radiation involved with MRI. CT can see bone better than MRI and MRI can see soft tissue in better detail than CT.
After CT scan is there any effect to body
Good. I'm CT SCAN Technologist
Dr suggested me to do ct scan....in my blood is infection found. Why ct scan?
Simple, perfect n very helpful
Beautiful animation. Nice video. Thanks
The Xray beam is fan shaped though , not like a pencil
Exactly. Fan/Coned shaped beam to cover all detectors needed depending on the FOV set by the technologist.
Hi, our Rotary club is Fundraiser for a CT Scanner at a local hospital. We would like a short video explaining what a CT scanner does. Is there anyway to use this video?
All our videos are in the pubic domain and you are free to use this video. We appreciate being credited, but it is not required.
Thank you
Simple and perfect
The best video
this was amazing thank you
How did I end up here?
Is there any harm, or side effects in it
Thank you so much
After a CTScan , is there any was to clear up the radiation ??
What is that.......
How can a CT device produce cross section images however the cross section image and the CT scanner and the receptors at the same line
It's done by a Fourier Analysis to convert a vector into a rectangular information.
很好哦
Why aren't we making more CT machines??? Are we really putting money over health and lives??? We need more CT Scanners. This is the best way to diagnose covid19
COVID-19, like alcohol, does not show up on CT. CT is imaging, not a chemical test. Doing a CT scan to detect COVID-19 is as silly as doing a CT scan to detect alcohol or drugs.
So it is radiation
I got ct scan at cmc
very nice video thank you so mutch
How can I learn how to use CT and MRI scan?
You can either become a radiology tech or a radiology physician
arinaitwe elias School.
Please, it's not something you can buy. They are expensive and can only be found at hospitals.
arinaitwe elias wtf😂😂😂😂
arinaitwe elias .t
Must improve your vedios ....and some detailed study is needed
wow
If I thought it were look so deep tissues touching the edges of bones😱😱😱
good
Cost me $900.00 for 5 minutes.
Cost me 120 dollars in iraq for 10 minutes
The less time the exploration takes the better.
did it help your life?
One day I have been sense less then I have done CT scan
my ct scan error, fhulbagan....
i belive ct scean
One ct scan = 300 chest x-rays
So be careful guys it may cause cancer risk
Told by aiims Institute director.
Yes, they use ionizing radiation which damages DNA. That DNA is repaired or kills itself within a few hours of a scan. The radiation dosing of CT scans has gone down significantly over the last 10 years. A CT scan increases cancer risk very slightly. A single abdominal CT scan with modern equipment increases cancer risk by about 0.03%. A CT scan is like getting a sunburn on the inside of your body. 1 sunburn does increase you chance of skin cancer, but very minimally. Now if you have had like 15 of them in the same area, then that may be a deferent story.
Any radiation dose under 100 mSv is not yet proven to cause cancer. An average CT scan uses about 4 mSv. You are exposed to 3-4 mSv naturally every year just through background radiation. Even more if you live at higher altitudes, like Denver is 8-9 mSv a year just by living there. The key is to minimize it, if you have 1 or 2 randomly throughout your life, there is no need to worry about that.
DO THIS CT SCAN IS MADE BY RADIO ACTIVITY OR WHAT ?
CT scans are done using x-rays, which are generated electrically.
Wen ppl doin at home not cool
i still dont know how they print CT scan result in film, and why not on paper instead since this is computer processed