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Doctor insights on: Fluoroscopy Radiation Dose

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What is the radiation exposure dose from EP study??

What is the radiation exposure dose from EP study??

EP study: The radiation exposure depends on the MAs used by the flouroscopy and the time of exposure. The exposure will vary by length of time the flouro is on and this isn't uniform for each study. Ask your EP doc for his likely exposure estimate. ...Read more

Dr. Heidi Fowler
1 doctor shared a insight

Fluoroscopy (Definition)

Medical imaging technique using x-rays for real-time visualization of body structures on a video display. Commonly used for image guidance, interventional procedures(e.g. angiography), and for diagnostic studies such as ...Read more


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Is 0.001 mSv of radiation enough to cause radiation sickness?

Is 0.001 mSv of radiation enough to cause radiation sickness?

Not nearly enough: The lowest dose of radiation known to cause radiation sickness is 35 reads which equals 350 mSv. Thus, .001 mSv is 1/350,000th of the lowest dose known to cause radiation sickness! ...Read more

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How much radiation exposure is in a 3-D Digital Dental CT Scan?

How much radiation exposure is in a 3-D Digital Dental CT Scan?

CBCT Scan: See the following website for some basic information. It depends upon particular brand of unit, software, and extent of area scanned. The office actually doing the scan can give you more accurate information. Call and ask. http://www.dent.umich.edu/patients/cbct-imaging-service-frequently-asked-questions#radiation ...Read more

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I-131 ablation therapy aftr thyroidectomy for ca nodules. Dose 113 units suggested. Simgle dose. Is it safe?

Thyroid cancer: The usual treatment of thyroid cancer is surgery followed by i-131. About 100 mci is typical dose, and is relatively safe, although they will educate you on precautions. There are many issues, and you should see a specialist (usually endocrinologist). What kind of thyroid ca? How big? Lymph nodes involved? After i-131, you need a follow up scan, ultrasound, thyroglobulin. ...Read more

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Radiation exposure on kids with CTscans. ?

Radiation exposure on kids with CTscans.

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CT scans: If there is an alternative to imaging the area such as MRI, then we prefer MRIs. There are some studies looking for bony problems that CT scan works better than MRI. Also in some settings, such as an emergency, if CT can be obtained more quickly or MRI not available, then CT is the test. How badly do you need the images and how soon are parts of the equation. ...Read more

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Does the CT scan shows the radiation dose used in the scan in mSv?

Does the CT scan shows the radiation dose used in the scan in mSv?

10 mSv: A CT scan of the abdomen (belly) and pelvis exposes a person to about 10 mSv; this goes up to 20 mSv if the test is done twice (once with and once without contrast). ...Read more

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Could exposure to ionizing radiation progress pkd?

Pkd and ionizing rad: Data are not clear on this. For sure, select mutations on either chromosome 16 or chromosome 4 lead to PKD expression. Scientists have long thought that a single mutation that affects polycystin expression leads to cyst formations. Newer data show that second or third or fourth mutations on these chromosomes affect expression of pkd. So, it is conceivable that yes ionizing rad could affect pkd ...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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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

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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?!

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 more

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Radiation exposure risk from nuclear cardiac stress test with thallium? Done in 2004. Also abdominal pelvis CT in 2010. Cumulative exposure risk?

Radiation exposure risk from nuclear cardiac stress test with thallium? Done in 2004. Also abdominal pelvis CT in 2010. Cumulative exposure risk?

Depends on specifics: Effective radiation dose from thalium stress test is about 17msv. Agents used today achieve much lower doses.Ct abd/pelvis radiation dose depends on many factors -automatic tube current modulation, body habitus & multi vs one phase - on average about 10-15msv.Newer techniques have significantly reduced the dose.To put it in perspective we all receive about 3msv each year from background radiation. ...Read more

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4 ct scans in 5 months? Too much radiation?

4 ct scans in 5 months? Too much radiation?

The decision: to use diagnostic X-rays is a risk/benefit analysis. The theoretical risk of a CT scan is very low. If the CT scans were medically indicated, it wasn't too much radiation. If the CT scans were unnecessary, then it was. You can go to xrayrisk.com and calculate your theoretical increased cancer risk from the scans. ...Read more

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Is taking iodine helpful when exposed to radiation via CT scans /multip. X-rays? The japanese took it after bomb and nuclear disaster.

Is taking iodine helpful when exposed to radiation via CT scans /multip. X-rays? The japanese took it after bomb and nuclear disaster.

No: First, the radiation dose of these studies is quite low compared to a nuclear bomb and this is unnecessary. Also, iodine is dense and if you took it prior to one of these, it may actually look like a mass or abnormality in your digestive tract. ...Read more

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How do diagnostic radiography, radiation therapy and nuclear medicine differ?

How do diagnostic radiography, radiation therapy and nuclear medicine differ?

Different radiation: Radiography or x-ray involves low dose ionizing radiation with images of chest , skeleton, skull etc. Radiation therapy uses high dose ionizing to treat tumors with external or internal irradiation. Nuclear medicine involves low dose ionizing radiation in form of isotopes that are internally injected intravenously. Inhaled, injected subcutaneously, or ingested orally. ...Read more