Can CT scans increase risk of cancer?
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- čas přidán 15. 05. 2021
- #PureScience #CovidPandemic #CtScan
While RT PCR tests continue to be in short supply during the ongoing second wave of the pandemic in India, there has been a surge in CT scans and tests to detect lung activity. However, experts are sounding alarm at indiscriminate usage of CT and its radiation risks. ThePrint’s Sandhya Ramesh explains what the CT scan is, how it works, what the risk of radiation exposure is, what studies show, and what we need to worry about.
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Supplementary reading:
What are CT scans, the radiation risk from them & do they cause cancer
theprint.in/science/what-are-...
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Radiation Dose to Adults From Common Imaging Examinations www.acr.org/-/media/ACR/Files...
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Mayo Clinic Proceedings | Answers to Common Questions About the Use and Safety of CT Scans www.mayoclinicproceedings.org...
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Too many CT scans to diagnose Covid could increase cancer risk, AIIMS chief warns theprint.in/health/too-many-c...
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CT scan is like 5-10 x-rays, not 300-400: Docs’ body refutes Guleria’s ‘unscientific’ comments theprint.in/health/ct-scan-is...
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One CT scan radiation in equal to radiation from 200 no of X rays or 1500 no of dental X rays.
CT scans are prescribed by doctors, hospitals because, huge money can be made in small amount of time.
60 - 70% CT Scans are unnecessary.
Thanks for your excellent presentation.
These days MRI is not contraindicated in metallic implants...
Even new generation pace makers are compatible with MRI..
Amazingly well explanation !!! All the best Sandhya
I'm sure nobody can be multitasking while listening to Sandhya's science updates.
Yeah, too much information in short videos
Nicely described..... Thanks a lot.... This a very important lecture.... Everyone must watch...
There's currently a suspicion that I could have colon cancer, going for an abdomen/pelvis ct on sunday, finding it amusing that they're going to look for cancer by flooding the area with ionising radiation with a small but significant risk of causing cancer
Are you ok?
Thank you Sandhya. 🤝
Thanks for the information 👏🏻
Can we all request all media houses to avoid the usage of '?' in the headline.
Very clear explaination
I have a CT scan for my lungs due this Tues. Asked the radiologist if they provide a shield as I'm concerned dispersed radiation will affect an already problematic thyroid. She said it doesn't. Who's telling the truth?
Nice explanation
THAT is a pervasive problem in everything. “So many “experts” say so many different things”!!!! Well brought out. Good programmes these, from The print. Way to go Sandhya.
Good atempt
I had ct abdoemna, pelvis with aortic angiography. Absolutely nothing was found anywhere. The radiation was probably great even though it lasted 3min? I'm 34, so after 40 I can expect cancer like that? Does any food to help rebuild cell bottoms? Is there anything else that can be done? I was sent to this CT completely healthy. Do you know what the radiation dose would be from such an examination? It says 1037 mGycm to me. It was with contrast: /
R u alive
@@krish406 yes i am
@@igor6270 whts the status of ur health now
@@krish406 it's fine.. no more symptoms.. I've gained 25kg since then.. It seems they were more psychophysical with stomach dyspepsia. But with so much pain and all kinds of information, I agreed to a ct which of course revealed nothing (thankfully). Now, unfortunately, it is impossible to know whether something will come of it. Because most likely they won't because they will do it naturally rather than with ct. I still regret going. But the irony of it all is that I regret and they didn't find anything, but what if they had? so he should be happy despite the fear of ct because he confirmed that there are no dangerous things. They suspected blood clots in the veins, and since it is close to the heart, it had to be confirmed with a CT scan. Now, on the other hand, I eat too much, but it's better than the situation I was in. :)
@@igor6270 same happened with me my ct of abdomen revealed nothing
Who’s still here ?? 2021 had a ct scan for falling wanted to make I’m okay 2 years later I received another one I wanted to make sure I’m okay what about you guys ???? Should I worry about two head ct scans u think they have 1in2,000 or less since is less msv???
Please explain abt 2dg... whether it really works ... if it does work why isn’t the whole world talking abt it ??
Should I worry I had a X-rays in October 2021 and a chest ct angiogram then December 2021 I had 2 ctscan of pelvic and addomen ?
I'm worried too, any update?
Very lucid explanation. Thank youuuuu!
My 18 month baby gor git on eylid doctor recommended ct scan is there any risk
Increased my knowledge on CT scan, also came to know who founded this.
This is usefull information
A simple yes or no would suffice.
I had 4 CT scan in January 2021 due to Stroke....The Stroke was minor..I did 1 more CT scan in May 2021. I'm 47 years old. A total of 5 in such a short time...Makes me worried.
@@ryanmiller5810 what about chest ? Please help 😫😫😫...I am sacred..I want to live a full tension free life..I can't live in fear that in future i might develop cancer..
@@ryanmiller5810 I am Male 27.. Contrast dye was not used..
@@ryanmiller5810 At what age it might develop if i am exposed to radiation now ?
@@ryanmiller5810 But the chances are very low right with 1 CT scan..Its 1 in 2000..
@@ryanmiller5810 But 20% is in old age After 60+..Most people die of cancer in old age..But here chances are between 2-9 years right ?
An mri can take more detailed images. They like using ct because it's quick and easy...
Excellent explanation.
Hi mam i am 22yrs unfortunately i got CT scan contrast of appendix 1 year ago but reports was normal and appendix was not there but i am worried about might be ct scan cause cancer or impotence in future kindly guide me what should i do to detox my body from ct scan side effects
Please simplify what you are trying to say..
Thank you dr... with your pretty self
my neurologist prescribed me NECT brain Ct scan at the age of 18 years in 2018 . I didnot know about the harmful effects of radiation back then.I did it, results were ok. But I am horrified now. Why do they play with lives of patients
The chances of getting cancer from one ct scan is negligible
Great Technocrat. Unbelievable that you talk on all the aspect of science with equal expertise.
Thank you, You explained and inform us very well keeping both the dos and don'ts. Keep bringing more science & medicine news.
Y
Thanks Maa'am. This was a relevant information considering the current scenario. As always you have stuck to science which is wut we like..
CT scans are a money maker for hospitals.
CT SCAN IS EXTREMELY DANGEROUS!!
worse than getting radiation naturally (all at once rather than over years)?
Radiation from x-ray photon energy is not cumulative, the damage is.
Natural Background Radiation is average if 1.5 - 3 mGy per year. Divide that by 365 days then the by 24 hours.
That is radiation dose that does not penetrate your body.
1 CT scan of the chest and Deposits directly inside your body over 1000 mGy in 15 seconds.
I leave the calculations and decision making to you.
Now how do we know the dose?
Average radiation dose is measured and calculated by the CT scanner based on having a pencil type Geiger counter in a centre of a phantom.
based on that measurement the CT Scanner calculates the dose length product which is the total dose went inside the patient, for example from top of the brain to the end of the cerebellum.
that dose is recorded automatically in the patient file. And in some places with no conflict of interest like ours the total dose is displayed on the digital image or printed on the film.
I call it deposited because that’s the real dose that reached the centre of the body part exposed.
Google average DLP in Australia from the ARPANSA website.
And next time you get a CT scan ask the Radiographer or Technologist, what was the DLP you received. It is your right to know.
there are many beneficiaries who will try anything to lure patients and hide the truth from people and lure them to have a scan. It’s all about the money and not you. You are just dollars in their bank.
And there many ignorant people who learnt nothing from their studies and they become teachers with PhD, teaching the new generation deceptive gobbledygook science. They didn’t even bother reading the dose displayed on the CT scanner.
you want to know the risks? Read Prof John Matthews research conducted at the Melbourne university and published in the British Medical Journal (2013). There are few other studies at that magnitude done in other countries publishing similar outcomes.
the risk of developing cancer from a single CT scan examination is 24% higher than the unexposed general population, and then additional 16% for every additional CT scan.
Such a huge crime of human being, especially done to children.
I had one x ray recently i just want to know does it increase the chance of cancer??
X ray ki kher hai yara ct scan is deadly seems like
@@muhammadtalha4678 why is CT scan deadly
@@dylanallen5653 im not sure dylan, but the amount of radiation u r getting exposed to is equal to 30 40 xrays at a time and even mri is not having that much radiations...it should be done when its a life threatining condition
@@muhammadtalha4678 ya but not deadly though . People get plenty done and are fine
Explained with so much clarity !
Sandhya Ramesh is surely one of the best Science Reporters in India 🇮🇳👏
I wonder if I’m being a hypochondriac but I seriously am so mad at myself for being so stupid. I broke my pinky finger, the base of my proximal phalanx about a year and a half ago, and unfortunately it healed with a malunion, I should’ve just let it go, but I’m a guitar player and I was considering doing osteotomy for it. I went to several different surgeons and got probably maybe 7 to 8 different x-rays over the course of the year, I also got a CT scan recently on my hand as well, I have been reading a lot about how I can damage the DNA, I can’t really explain it, but before my hand felt stupid and now it feels retarded. I feel like my hand is so weak, I just tried playing the guitar and maybe it’s partly muscle memory but I feel like I basically nuked my hand and destroyed it. My hand CT was a high 4.18 mGy and 101 DLP. I also got a MRI to even though they said that’s non ionizing. But I’m sure there is still risk. Which is according to research about a year and a half background radiation. The problem is they don’t tell crap about that as you’re going into appointment. Wish they did. Cause I read it can damage your dna and it’s not like after a year and a half it’s back to good. It stays with you forever. This is the most covered up conspiracy of our generation. Withholding the risks of radiation ☢️ in our lives.
it' not high radiation. Nuclear workers receive 50 msv every year, so there is no increase in mortality among them.On Earth, humans are exposed to 3 to 4 mSv of radiation a year. On the International Space Station, astronauts get about 300 mSv per year. these are large doses and there is no increase in cancer among them. Humans have been exposed to ionizing radiation since the dawn of time. So it's nothing new for the body. DNA regenerates after exposure. But it can happen that it is not renewed and then only from that can cancer arise. But the question is whether they will. Also, if you smoke and expose yourself to the sun every day, DNA is destroyed too much, and it is also a question whether it will be renewed, so many factors affect whether someone will get it or not.
There is absolutely no radiation risk with MRI
Good exposition of facts. Appreciate the restraint exercised to avoid adding opinions. People need to use CT scans judiciously but in a Covid crisis, it may be a necessary short term tool
Could this be simplified?
Maybe less jargons, simpler sentences and more articulation can help.
I thought it was pretty concise
During coved i had 2 ct scans, i am 25 and scared now
dont be dude, risk is very low. Chest CT test equals to the radiation you are normally exposed during a few months of your daily life. Also when u take a plane there are levels of radiation. It's everywhere so dont think about it and live a happy life
I heard it’s like having 400 x rays done in 1 time
Are any sign of fibrosis in ct report ?
@@nachofdc7941 I thought it was equivalent to a few years rather than months, I've had one and I'm 24 and am quite worried tbh.
@@gigia259 even i am scared.
I also had one done😭😭
does frequently 2 ct scan cause cancer? 🙏🙏🙏🙏🙏
not. but it can, like other factors throughout your life. from food, stress, bad habits...
It's an important part of your medical evaluation but don't overdo it.
How much is safe ? Is 1 CT scan okay ?
@@Versatileabhi Should be fine, I believe.
@@txmade4371 Are you a doctor bro ?
@@Versatileabhi No I had a CT Scan as well and been searching for the same answer. I’ve talked to a lot of older people who have got more than 3, and they seem to be fine in there later years. Put me more at ease.
@@txmade4371 Yes chances are less but it does increase the risk of developing at later life. 1 in 2000
I’m 23. I’ve had about 15. Most of the abdomen & chest. There goes my life. Rip.
Yes please tell us
I’m 33 I’ve had 4 because of my gallbladder
Oh wow, how come ? I'm 24 and have had only one and am quite worried.
Are you kidding
Do you mind me asking why so many?
Koi apni marzi se ct scan ni karate doctor force krte h issue baar karane se doctors pr case krna chahiye
Ct scan 6 month Purnima h fis se karao ye keh kr baar baar force krte h doctors ye b to shi ni h. Is pr role lining chahiye ager ye health k liye dangerous h.
Jo doctors ct scan lights h use ak write note b sath me likh kr dena chahiye ki ye health aur cancer ni hoga future me isse
Aisa karna jaruri hai women are more prone to cancer still doctors send us to get CT scans
@@DailystudymantraI'm so much worried
There is a product of that same cancer also maybe I wrote that 😢
She has such heavy accent I only understand some of the clear words
She says cancer = cancel.
Once hrct scan cause cancer,hrct as high radiation compare to ct scan some dr said please reply any one knows please 🙏🙏🙏🙏🙏🙏
Even I went through hrct , any update brother?
Not just cancer risks, these scans can make you very sick expecially if the operator does not lower the dose enough and your cells are still rapidly deviding. My ct scan enduced radiation necrosis and made me very sick, like being burned and dehydrated alive with reduced organ function accross my body. Lost 35 lbs in the first 3 months.
Me also I have tumor in my thyroid gland because of ct scan done on my brain
@@abhinavtiwari9219 how long did it take for it to show up?
@@user-pb7wl2fq5b 2015 ct scan brain and 2017 se tumor start ho gaya
@@abhinavtiwari9219 I’m sorry to hear that. I hope you are okay.
@@user-pb7wl2fq5b I am okay but my weight is falling drastically
3:20 How Ct scan is non invasive even after injecting chemicals 😢
Indian TED-Ed
I need your help ma'am! I was really stressed ,Because I took 1 head CT & 1 head and neck ct totally 2 scans in 1 month gap , after my CT scan I am having a pressure headache continuously throughout the day for more than 1 Month , and I came to know that ct scan cause brain cancer .I am 23 years old., Please help me ma'am ..
Hey .. don't drive your mind in crazy things.. nothing would happen from 1 or 2 scan..
Very low risk after 15 to 20 years..
So chill and enjoy your life
R u alive
@@hridaykumardebsharma5794I am very anxious , as I got my hrct with contrast today, I'm really worried
Professor
Hi Mam
, I had 3 ct scans in span of 3 weeks due to covid. My age is 32. I am more worried about its side effects now. Could you please tell me remedies to reduce the effects of Ct scans..please suggest.
Dont worry brother
You are not alone
I took 3 ct scans for head but spread over 12 years
Iam 30 years old
I too worried i even crossed every limit of fear and stopped all my work
But slowly getting to the truth
Ct scan radiation cancer percent is less than 1% that too after 10-50 years
@@PraveenKumar-ng1ss Thank you brother 🙏 ❤
@@krishnachaitanya573 even now i have extreme fear of radiation induced cancer
But we are not alone
Be positive that after 10 years technology will develop treatment will be advanced
What ever be the cancer if it comes the survival rate will be doubled
So trying to be positive but sometimes it is disturbing
I did 3 or 4 ct scans of my brain for severe seizure(only once in my life)
Head injury
Chronic headaches
This all led to 3 or 4 ct scans
What about you bro
@@PraveenKumar-ng1ss don't worry bro, if the frequency is not immediate then you don't need to worry much. That too for head scan they use minimal radiation range. Typically 1-2 msv.In my case 3 ct chest scans in a span of 3 weeks due to covid(7msv * 3). I also got nervous initially but now I am moving on. I hope everything will be fine.
@@krishnachaitanya573 thats ok bro
Hope every thing will be good
ive had about 10 of these in my life. im shiting my pants
R u ded
Your a very attractive woman And Thank you for this informative video
🤡
@@sineadiloveyou❤
I put negative to you. One minute answer would be enough.
you don't need 11 minutes to answer
exactly!
Madam, how the hell are you reproducing so much of info without reading through a paper.
I am going to get a mri on Sunday
But MRI's have no radiation