Risk Calculator 


 
Study: Thyroid Scan
Gender: Male Female
Age at Time of Study: (years)
Number of Exams:
Effective Dose: (mSv)
DLP (Optional for CT): (mGy · cm)


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.

Plain Films (x-rays)
Chest x-ray (2 views)
Abdomen x-rays
Pelvis x-rays
Hip x-rays (unilateral)
Neck x-rays
Upper Back x-rays
Lower Back x-rays
Extremity x-rays (Hands, Feet, etc)
Mammogram (unilateral)
Dental x-ray (panoramic)
Dental x-ray (4 intraoral bitewings)
Skull x-rays
DEXA Scan (Bone Density)

Dose is based on multiple views
CT Scans
Brain CT (Standard)
Brain and Neck CTA/CTP
Neck CT
Thoracic Spine CT
Lumbar Spine CT
Chest CT (Low Dose Screening)
Chest CT (PE Study)
Chest CT (Standard)
Cardiac CT (Coronary CTA)
Cardiac CT (Calcium Scoring)
Abdomen CT
Abdomen CT (Dedicated Liver)
Abdomen and Pelvis CT
Chest, Abdomen and Pelvis CT
Pelvis CT
Sinus CT
Virtual Colonoscopy CT
Dental CT
Fluoroscopy
Upper GI (Barium Swallow)
Small Bowel Follow-through
Barium Enema
IV Pyelogram
Hysterosalpingogram
Nuclear Medicine
Lung Scan (Ventilation Perfusion - VQ)
Cardiac Stress Test (Technetium)
Cardiac Stress Test (Thallium)
Liver Scan (HIDA)
Renal Scan
Whole Body PET/CT
Bone Scan
Tagged WBC Study
Gastric Emptying Study
GI Bleeding Study
Thyroid Scan
Parathyroid Scan
Brain Scan
Radionuclide Ventriculogram (RVG)
Urea Breath Test
Gallium Scan
Interventional Procedures
Coronary Angiogram (diagnostic)
Coronary Angiogram (stent, ablation)
Pulmonary Angiogram
Abdominal Angiogram
Head and Neck Angiogram
TIPS
Pelvic Vein Embolization
ERCP
Endomyocardial Biopsy
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

Study
Gender
Age
# of exams
Dose (mSv)
Additional Cancer Risk(%)
  
 
0
%
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Totals:
0
0
0%
 

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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
Drowning
0.1% or 1 in 1000 chances
Bicycle Accident
0.01% or 1 in 10,000 chances
Lightning
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.