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The Cancer in Pregnancy Forum

Archived Questions and Answers
This Forum has been the centre of an exceptional exchange of knowledge diagnosis, treatment, symptoms and other effects of cancer during pregnancy and lactation. All are welcome to review the Questions and Answers posted here, provided that they acknowledge and accept the important proviso and disclaimer below.
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Forum > Cancer - Active Topics: Cancer - Active Topics
Levels of Radiation Exposure In CT-Head Scans During Pregnancy

Date: 2008-12-11

whats the risk of c t head during pregnancy... what is the percentage of risk... whats the risk of c t head during pregnancy with out lead apron....

Consult your physician. The following information should not replace the assessment and advice you have been receiving from your physician (cancer specialist, obstetrician, or any other healthcare provider). It is offered for your information only. The baseline risk in the general population for any type of fetal malformation/defect is about 1-3%. In general exposure to fetal radiation levels of less than 10 rads are not worrisome, and even at levels of 10-15 rads there maybe a slight increase in the baseline risk, which has yet to be proven. However at radiation levels of greater than 15 rads, the risk for major malformations increase by a factor of 2-3. The average dose to the fetus from a head CT scans is about 0.0005 rads which is an extremely negligible amount of exposure. Lead aprons are important safety measure that are effective at minimizing the amount of radiation that reaches the fetus, and are recommended for use in all radiation procedures by women of reproductive age, especially if in their 3-8 weeks of gestation which is a period of high vulnerability to the developing embryo.

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