Doctor insights on:
Do Hida Scans Expose Patients To Dangerous Levels Of Radiation
Patient is injected intravenously with isotope tagged to chemical hida that is extracted preferentially by liver cells mimicking bile. Some of this is stored in gall bladder and some enters small bowel from common bile duct. Cholecystokinin is a natural hormone slowly injected intravenously to stimulate gall bladder contraction. Normal function has at least 50% ...Read more
No: All imaging tests that expose a patient to radiation should only be performed for certain conditions/symptoms. That is called appropriate use. Medical radiation is a useful tool, but it should not be used unless necessary to help make a diagnosis. Radiology is always trying to balance radiation dose with image quality. This is called alara - as low as reasonably achievable. ...Read moreSee 3 more doctor answers
So continuous radiation that focuses on thyroid CT scans and radioactive dye from pet scans can't destroy someone's thyroid gland causing it to fail ...Leading to hypothyroid issues ?
CT scans produce high amounts of radiation. Wouldn't that cause cancer? Some articles online say CT scans have been linked to cancer.
Too low to measure: The radiation from scans is real and is ionizing, capable of causing cancer. I've looked at the math and the risk is still very low -- and no reasonable person questions the benefits of a CT scan when it's ordered responsibly. You also know that you get ionizing radiation from cosmic rays and even the potassium in your own body (it's mildly radioactive). Life's about weighing risks and benefits. ...Read moreSee 1 more doctor answer
What you are looking: Every radiology test like ct mri, angiograms, radio isotope scans, sonograms, pet scans, sonograms etc has a specific indication. All cancers cannot be detected by ct alone, for scattered small deposits of tumor( metastatic) pet scan is used, some of the bone tumors MRI is better, costs risks& benefits to be considered finally physiology and physics of tumor decides which is needed. ...Read moreSee 1 more doctor answer
Can digital dental xray machine malfunction and overexpose patients to radiation? Are safety mechanisms in machine/software to limit radiation levels?
Heard pet scan expose equal radiation as ct.What will be the radiation for pet +ct which are using nowadays combined?Is it double the CT radiation?!
Variable: The exact radiation you get from ct and pet/cts varies based on the used protocol. Roughly speaking a diagnostic ct gives you a rad dose of 10-15 msv. Pet/cts are often done with low-dose ct, so instead of 10-15 msv you get 1-2 msv from the ct. For the pet portion is approximately 8-12 msv. So a regular pet/ct is approx 12-14 msv and if you add a diagnostic ct you get 10-15 msv more. ...Read moreSee 2 more doctor answers
Will walking through the radiation oncology department expose me to dangerous levels of radiation?
If my total body exposure to radiation is 22 msv, how much more radiation is my heart exposed to in a cardiac CT scan?
Is taking iodine helpful when exposed to radiation via CT scans /multip. X-rays? The japanese took it after bomb and nuclear disaster.
When would CT scan cancer effects show up? If i received too much radiation as a result of CT scans, when would the cancer potentially show up? Could i get canncer in 10-20 years because of CT scan radiation?
Delayed, high dose: In general, ct scans do not by themselves cause cancer. You would have to have had dozens upon dozens to risk the development of cancer. Having said that, when radiation induced cancers development, they are usually in the field of radiation, and usually are sarcomas (soft tissue malignancies). Based on your age, you would have to have had hundreds of cts in a short time 15-20 years ago. ...Read moreSee 1 more doctor answer
How high is your chance of getting cancer compared to someone who never had 2 ct scans or a few x Rays? Is radiation used freq in hospitals to blame?
Misleading claim: The radiation you get from a CT scan is maybe 3 mSV, which is the same as the extra radiation an airline pilot gets in a year from flying. Nobody's shown an increase in cancer in pilots. Radiation from chest x-rays is far less. Frankly, you need to stop reading doctor-bashing sites by crooks posing as "humanitarians" -- life's hard enough without fearing the imaging studies you need. ...Read more
Myoview stress test uses radioactive injections, is this dangerous? Some say it's an absurd amount of radiation. My need to change to a CT scan ?
It is not: an absurd amount of radiation. The average effective radiation is slightly more than a standard chest CT. A coronary artery CT angiogram, on the other hand, is nearly twice as much radiation as a myoview stress test, and doesn't provide the same information. The radionuclide used in the stress test, technetium 99m, has been safely used in medicine for more than 50 years. ...Read more
Preferentially: A radio-iodine scan identifies any tissue that absorbs iodine and will preferentially "light up" any thyroid tissue. Metastatic thyroid cancer (outside the thyroid) will often take-up iodine, although to a lesser extent. Therefore, in order for a scan to effectively identify cancer 'elsewhere', all of the normal thyroid gland must be removed first. ...Read moreSee 2 more doctor answers
I know CT scanners come in 64,128,256,320 & 640 slice models. Can they all perform LDCT scan of chest? Is there a difference in radiation output?
Yes, they can: all do it. With LDCT protocol, radiation exposure should be comparable. ...Read more
Can indirect exposure to radiations from an X-ray cause any harm to cardiac patients who have had multiple angioplasties?
51yo had 2 CT scans + 3 MRIS during lifetime + 50+mammo pics last year due to complication of biopsy. Is it too much radiation to do kidney CTw/ctrst?
A balance is needed: The mri is not an issue. The number of mammograms seems to me to be excessive but that would depend on the complication. The CT of the kidneys should be no issue. One must balance the benefits vs the potential risks. You should also discuss your concerns with your doctors. Perhaps some of any further imaging be done with MRI ...Read more
Will having 2 full body CT scans totally 55mSv effect my future children? Does all of that radiation damage my eggs?
No, Not likely: Medical use of X-Rays such as CT scans is considered safe. Most people will have 2 or more body CT scans in their life time without any harm. The dose of radiation received by your body is not sufficient to cause any harm to your Ovaries. So it should not affect your fertility. ...Read moreSee 1 more doctor answer
- Talk to a doctor live online for free
- Do ct scans expose patients to dangerous levels of radiation?
- Will a hida nuclear scan expose me to dangerous radiation
- Hida scan radiation levels
- Ask a doctor a question free online
- Pet scan radiation levels
- How much radiation do you get from a ct scan?
- Do alzheimer's patients have lower dopamine levels?
- What can patients do to change the levels of hdl in their blood?
- Talk to a gastroenterologist online