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Doctor insights on: Do Hida Scans Expose Patients To Dangerous Levels Of Radiation

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Do hida scans expose patients to dangerous levels of radiation?

Do hida scans expose patients to dangerous levels of radiation?

Small dose: If i recall correctly, the total dose of radiation from a hida scan is equivalent to about a year of exposure to the low-level radiation from the environment, so quite low. ...Read more

Dr. Joseph Accurso
315 doctors shared insights

Hida Scan (Definition)

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


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Will a hida nuclear scan expose me to dangerous radiation?

Will a hida nuclear scan expose me to dangerous radiation?

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 more

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Had nuclear stress about 13 years ago don't remember meds used! Had HIDA 2 yrs ago plus annual mammos. Too much radiation? Nuclear dangerous?

Had nuclear stress about 13 years ago don't remember meds used! Had HIDA 2 yrs ago plus annual mammos. Too much radiation? Nuclear dangerous?

Nuclear stress test: It would be unusual for a 33 year old woman to have a condition where a nuclear stress test was helpful. The effects of radiation exposure are measured in very small numbers -- while not zero, the risk of a radiation side effect is quite low from the kinds of diagnostic tests you've had. The goal is to keep radiation exposure as low as reasonably possible, while using tests when needed. ...Read more

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Had Hida scan for gallstones & months later multiple mammos for stereotactic biopsy (calcification-benign)-dangers to all this radiation?

Had Hida scan for gallstones & months  later multiple mammos for stereotactic biopsy (calcification-benign)-dangers to all this radiation?

The danger is tiny: The risk of induced cancer from a HIDA scan and dozens of mammogram images is incredibly small. In fact, some would claim the risk could barely be calculated reliably. See: http://www.riainvision.com/exams/hida_scan.aspx Note, we all get x ray radiation naturally every day.
There is real risk with repeated studies such as CT scans. For instance, one CT study of the chest equals 100 chest x rays. ...Read more

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I've had a neck ct scan and four x-rays and a hida scan? I'm worried about the radiation exposure... Should I? All in the past year, I'm a 34yr F.

I've had a neck ct scan and four x-rays and a hida scan? I'm worried about the radiation exposure... Should I? All in the past year, I'm a 34yr F.

CT scan; not the Xra: CT scans involve ~400 times more radiation exposure as Xrays, & so if u worry abt unnecessary radiation risk, limit CT scans. HIDA & Xrays involve so little radiation that u prob got as much from walking outside in 1 yr as u got from those tests. At 34, most of ur organs have developed, so there's no immediate threat; however, there's a lifetime radiation limit. Too much testng will catch up 2u@80 ...Read more

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Is there a tool that a DR. can use to check the level of patients radiation exposure from all the x-rays and CT scans in ones life?

Is there a tool that a DR. can use to check the level of patients radiation exposure from all the x-rays and CT scans in ones life?

No: The list of Possible Things To Worry About from cradle to grave is infinitely long. The radiation exposure from medical testing is low on that list, unless one has a bad medical disorder and is getting repeated scans over and over. ...Read more

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How to find out how much radiation the patient is exposed to during a bone scan when they inject a dye?

How to find out how much radiation the patient is exposed to during a bone scan when they inject a dye?

Low end of rad, dose: With a bone scan the radiotracer or isotope is injected intravenously and accumulates after a couple of hours in the bones of the skeleton. The common bone scan with 600 mbq of technetium-99m-mdp has an effective dose of approximately 3.5 msv . This is higher radiation than several routine xrays but is thought not to increase cancer risk in adult patient. ...Read more

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Which test exposes patients to more radiation? Is it PET scan or CT scan?

Which test exposes patients to more radiation? Is it PET scan or CT scan?

It depends: on the technical parameters of the scans, particularly the CT scan. The exposure from the CT scan could potentially be more, about the same, or lass than a PET scan. ...Read more

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Widen right superior mediastrinal should be further evaluated in asymptotic patient? Dr asked me for Ct scan. Worried abt radiation. Please help!

Don't worry.: A wide superior mediastinum has many causes. But it is important you find out what it is. This way every time you have an X-ray someone is going to go bananas trying to figure it out. Seriously , since this could be anything from a congenital variant to lymph nodes it is important to know. One CT will not cause you trouble with radiation as long as there are few of these studies performed. ...Read more

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Do nuclear scans expose a patient to more radiation than an X-ray or CT scan?

Not usually: Depends on nuclear study. A lot of CT exams such as chest and abdomen have more radiation dose than most nuclear medicine studies. A bone scan is more dose than the CT of brain. In any event if study is necessary for diagnosis to help patient the dose becomes insignificant. ...Read more

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Which procedure exposes patients to more radiation: a bone scan or a computed tomography?

Which procedure exposes patients to more radiation: a bone scan or a computed tomography?

Sometimes same dose: Background radiation at sea level: 3 msv per year,
denver residents get: 6 msv per year, cross country flight: 0.02 msv, x ray chest: 0.06 msv, ct head: 3 msv, ct chest: 5 msv (equivalent to 100 chest xrays)
ct abdomen: 5-10, average bone scan 6.5 msv. Radiation depends on size of patient." radiation affects growing body in children more than adults. Doses to children are much less. ...Read more

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Expert opinions? Which modality exposes patient generally to more radiation, bone scan or computed tomography?

Expert opinions? Which modality exposes patient generally to more radiation, bone scan or computed tomography?

Sometimes same dose: Background radiation at sea level: 3 msv per year,
denver residents get: 6 msv per year, cross country flight: 0.02 msv, x ray chest: 0.06 msv, ct head: 3 msv, ct chest: 5 msv (equivalent to 100 chest xrays)
ct abdomen: 5-10, average bone scan 6.5 msv. Radiation depends on size of patient." radiation affects growing body in children more than adults. Doses to children are much less. ...Read more

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How much radiation is the patient exposed to during an EP study/ablation on average? Is it as much or more than a typical CT scan?

How much radiation is the patient exposed to during an EP study/ablation on average? Is it as much or more than a typical CT scan?

Depends on dose: Typical Chest X-ray is radiation equivalent of 2 dental X-rays. A transatlantic flight can be equivalent to 6chest X-ray worth. A CT scan of the chest can be as high as 200 chest X-rays worth. Then add the effects of the contrast associated radiation and redo the scan to see how the contrast is picked up. Typically the radiologists try to use low doses but still try to avoid as much as possible ...Read more

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Can digital dental xray machine malfunction and overexpose patients to radiation? Are safety mechanisms in machine/software to limit radiation levels?

Can digital dental xray machine malfunction and overexpose patients to radiation? Are safety mechanisms in machine/software to limit radiation levels?

Digital X-rays: Generally digital x-rays have a lower radiation exposure than conventional x-rays. There a re safety features built into the machines. You dentist would know if the machine was not functioning properly. ...Read more

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Is it unethical for a doc to order a CT scan but not inform patient of the amount of radiation exposure and slight increase risk of cancer with scan?

Is it unethical for a doc to order a CT scan but not inform patient of the amount of radiation exposure and slight increase risk of cancer with scan?

Not ethics issue: It is common knowledge that x-ray studies such as regular x-ray films or CT scans do put out a bit of radiation, and that radiation does not noticeably increase "one particular person's risk of cancer," when added to the radiation risks for cancer she already experiences just by living on planet Earth. Doctors do discuss the risks of getting repeated x-rays, but that is a different situation. ...Read more

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Is a hida scan dangerous?

Not generally: HIDA scan carries few risks. Risks may include:
Allergic reaction to medications containing radioactive tracers used for the scan,bruising at the injection site
or rash. ...Read more

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EF rate of 0% on hida scan. how dangerous is it to live with this until I have it removed? Also fattening food doesn't bother me so can I still eat it

EF rate of 0% on hida scan. how dangerous is it to live with this until I have it removed? Also fattening food doesn't bother me so can I still eat it

Gall bladder: This appears to be a ticking time bomb in view of either a nonfunctioning or obstructed gall bladder,especially if you're experiencing symptoms. An abdominal surgeon should be involved in your care. ...Read more

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Is a hida scan (cholescintigraphy) dangerous for people w/ lupus or autoimmune diseases?

No.: No higher incidence of problems with autoimmune disease, ie .Lupus. One of the best tests for determiing gall bldder function. Wouldn't worry! ...Read more

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Inflamed gallbladder. Hida scan shows 29%. No gallstones. Symptoms are not severe, minor back pain, nausea, elevated pancreas levels (301), acid reflux. Any other option besides surgery? If so, what?

Inflamed gallbladder. Hida scan shows 29%. No gallstones. Symptoms are not severe, minor back pain, nausea, elevated pancreas levels (301), acid reflux. Any other option besides surgery? If so, what?

Surgery not: An option, you symptoms are ' not severe' , no evidenced sepsis , cholecystitis with out stones will subside with time , no need for surgery , get your relax treated with medications , speak to your doctor. ...Read more

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Can a prostate radiation seeding affect the patient's pets?

Can a prostate radiation seeding affect the patient's pets?

Radiation exposure: Radioactive seeds typically give off 95% of their radiation, in the first few months, after implant. During this time, patient is radioactive and should follow radiation precautions to keep exposure low to living being including pets, especially at infancy( more organs forming/maturing at this age and susceptible to radiation). To decrease exposure, increase distance, shield, decrease time spent. ...Read more

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Can patients getting radiation therapy still exercise?

Can patients getting radiation therapy still exercise?

Yes: Listen to your body. Cardiovascular exercise specially encouraged. Your energy may run out quicker than it did. Stay hydrated and get rest as needed. Avoid chlorinated pool swimming and hut tubs that can dry up skin in women that are getting their breast radiated. ...Read more

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Can doctors tell me what does radiation do for cancer patients?

A treatment option: Radiation can be curative in the treatment of many cancers, especially, localized, early stages. Sometimes radiation therapy is used along with surgery and/or chemotherapy.

Radiation is also used for palliation for advanced cancers. ...Read more

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Can patients live at home while they're getting radiation therapy?

Can patients live at home while they're getting radiation therapy?

Yes: When using a radiation machine there is no radioactivity left in the patient and no reason they can't go home. When radioactive medication or seeds are left in the patient there will be complex rules to follow to minimize exposure from radiation to others or their environment when the patient goes home. There are centers who will keep a patient when radioactive substances are left in the patient. ...Read more

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Does an EP study/ablation expose the patient to an excessive amount of radiation?

No.: In fact many of the EP procedures we perform involve NO exposure to radiation at all. We use electromagnetic mapping and catheter manipulation rather than Radiation for catheter manipulation and positioning. ...Read more

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What precautions do docs take to limit the dose of radiation to which patients are exposed to?

What precautions do docs take to limit the dose of radiation to which patients are exposed to?

Every precaution: Prolonged exposure to radiation has serious effects on human body due to constant damage to dna, and body's inability to repair. This will not happen to staff , are well protected not to get exposed , may only happen if there is break down of protocols , and wear lead lined protective gear. ...Read more

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As a career not a patient what's the difference between radiation onclogy and radiation therapy?

Sort of the same : Radiation oncology is a medical specialty. The radiation oncologist is a physician who administers radiation therapy in conjunction with other professionals (rad techs, dosimetrists, physicists, nurses, etc). ...Read more