Risk Calculator for Recurring Studies 

Calculate Risk of Recurring Studies

Recurring Study: Neck CT
Gender: Male Female
Interval of the Exams: Twice a Year
Every Other Year
Every 5 Years
Age at Start: years
Age at End: years
Average Dose: (mSv)
DLP (Optional for CT): (mGy · cm)

Calculation Results

Additional Cancer Risk at Years of Age = 0.000000 %

Total Amount of Exams :1

Total Additional Cancer Risk After 0 Years = 0.000000 %

Total Effective Dose: (mSv)
Additional Cancer Risk: (%)
Baseline Cancer Risk: (%)
Baseline + Additional Risk: (%)

To learn more about how these calculations are made, see the About page.

MRI and Ultrasound

Ultrasound and MRI do not use ionizing radiation and have no risk of inducing cancer. While excellent for many things, MRI and Ultrasound are often not the best test and CT scans or x-rays are preferred. Talk to your healthcare provider about imaging options and what is best for you.

Please see Glossary for description of different studies.

Your X-ray Risk Report

# of exams
Dose (mSv)
Additional Cancer Risk(%)
Your results will appear here but will be deleted after 20 minutes of inactivity.

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Comparison Doses
Natural Background 3.1 mSv/year10 Domestic Pilots 2.2 mSv/year11
Average US Exposure 6.2 mSv/year10 7 Hour Airline Flight 0.02 mSv12
Chest x-ray (2 views) 0.10 mSv Chest CT 7.0 mSv

Estimated Lifetime Risk of Death from Various Sources13

Motor Vehicle Accident
1% or 1 in 100 chances
0.1% or 1 in 1000 chances
Bicycle Accident
0.01% or 1 in 10,000 chances
0.001% or 1 in 100,000 chances

Keep in mind, the overall lifetime risk of developing an invasive cancer is 37.5% (1 in 3) for women and 44.9% (1 in 2) for men regardless of imaging history. These statistics are averages and do not predict what is going to happen to you. They do not take into consideration individual risk factors including lifestyle (smoking, diet, exercise, etc), family history (genetics) or radiation exposure. The majority of cancers occur later in life and the average lifetime risk of dying from cancer is 25% (1 in 4).

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Together, dedicated to improving the understanding of radiation risks from medical imaging. Calculate your dose and estimate cancer risk from studies including CT scans, x-rays, nuclear scans and interventional procedures.