How protected are you in CT scan?

This is a quote from a doctor at the Health Physics Society, specialists in radiation therapy, to a mother who had a CT head scan done at 1-2 weeks pregnancy:
"Brain CT is not likely to result in exposure to the unborn child because the radiation is directed only to the head. Therefore, the likelihood that radiation exposure may be responsible for malformations or birth defects is very unlikely. "

A head CT scan exposes about the same amount of radiation that one would get from the sun in 72 hours of exposure. This is considered an acceptable exposure in terms of need to diagnose a head injury versus concerns about Potential effects on the baby. The rates of abnormalities in babies do not have a significant statistical rise after this kind of exposure (normally, 30 out of 1,000 births will result in some kind of abnormality.... without CT exposure) It is theorized that there could be a slightly higher chance of childhood cancers, but this is unknown.
Preparation for a CT head scan in a woman often involves covering the abdomen with a lead apron to protect from exposing her ovaries and future ovum to radiation. Was a heavy, vinyl covered apron placed over the abdomen during the procedure? If so, there is no likelihood of fetal exposure at all as the lead shielded the fetus.

If contrast materials were used intravenously (dyes) such as barium or iodine, it is unlikely they would affect the fetus this because it is not yet utilizing the mother's bloodstream for sustenance and so would not have been exposed.

I trust that this information is reassuring.