Radiation Dose in X-Ray and CT Exams

Poštovani članovi,

donosimo vrijedan podsjetnik o dozama kod radioloških pretraga sa stranice www.radiologyinfo.org/. Svakako preporučujemo podsjetiti se, a izdvajamo slijedeću tablicu:

For this procedure: * Your approximate effective radiation dose is: Comparable to natural background radiation for: ** Additional lifetime risk of fatal cancer from examination:
ABDOMINAL REGION:
Computed Tomography (CT)-Abdomen and Pelvis 10 mSv 3 years Low
Computed Tomography (CT)-Abdomen and Pelvis, repeated with and without contrast material 20 mSv 7 years Moderate
Computed Tomography (CT)-Colonography 10 mSv 3 years Low
Intravenous Pyelogram (IVP) 3 mSv 1 year Low
Radiography (X-ray)-Lower GI Tract 8 mSv 3 years Low
Radiography (X-ray)-Upper GI Tract 6 mSv 2 years Low
BONE:
Radiography (X-ray)-Spine 1.5 mSv 6 months Very Low
Radiography (X-ray)-Extremity 0.001 mSv 3 hours Negligible
CENTRAL NERVOUS SYSTEM:
Computed Tomography (CT)-Head 2 mSv 8 months Very Low
Computed Tomography (CT)-Head, repeated with and without contrast material 4 mSv 16 months Low
Computed Tomography (CT)-Spine 6 mSv 2 years Low
CHEST:
Computed Tomography (CT)-Chest 7 mSv 2 years Low
Computed Tomography (CT)-Chest Low Dose 1.5 mSv 6 months Very Low
Radiography-Chest 0.1 mSv 10 days Minimal
DENTAL:
Intraoral X-ray 0.005 mSv 1 day Negligible
HEART:
Coronary Computed Tomography Angiography (CTA) 12 mSv 4 years Low
Cardiac CT for Calcium Scoring 3 mSv 1 year Low
MEN’S IMAGING:
Bone Densitometry (DEXA) 0.001 mSv 3 hours Negligible
NUCLEAR MEDICINE:
Positron Emission Tomography – Computed Tomography (PET/CT) 25 mSv 8 years Moderate
WOMEN’S IMAGING:
Bone Densitometry (DEXA) 0.001 mSv 3 hours Negligible
Mammography 0.4 mSv 7 weeks Very Low

Note for pediatric patients: Pediatric patients vary in size. Doses given to pediatric patients will vary significantly from those given to adults.

* The effective doses are typical values for an average-sized adult. The actual dose can vary substantially, depending on a person’s size as well as on differences in imaging practices.

** Legend:

Risk Level
Approximate additional risk of fatal cancer for an adult from examination:
Negligible:
less than 1 in 1,000,000
Minimal:
1 in 1,000,000 to 1 in 100,000
Very Low:
1 in 100,000 to 1 in 10,000
Low:
1 in 10,000 to 1 in 1000
Moderate:
1 in 1000 to 1 in 500
Note: These risk levels represent very small additions to the 1 in 5 chance we all have of dying from cancer.

Svakako posjetite i pročitajte cijelu objavu:
http://www.radiologyinfo.org/en/safety/?pg=sfty_xray

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