MRI and pregnancy?!


Question: my friend just found out she was pregnant yesterday and she had and MRI scan done a few weeks ago cause the doctor thinks she might have a boold clot in her brain, tumour, or MS anyway when she went to get it confirmed and the doctor told her that it is his recommendation that she terminates the pregnancy, he wanted her to get the blood test done and then discusse the termination. I know that they dont do mri cause they dont really no what risks it has on the unborn child. Does anyone know anyone who had MRI done whiles pregnant and there child was fine with no defects or any information you can find on this. she had a misscarry a wile ago and she wants to be happy but cant cause she is worried. Feel so sorry for her but happy at the same time. She is a really good friend and I just wasnt to reasure her that her baby will be ok and she will be a great mum in 9 months. Thanks


Answers: my friend just found out she was pregnant yesterday and she had and MRI scan done a few weeks ago cause the doctor thinks she might have a boold clot in her brain, tumour, or MS anyway when she went to get it confirmed and the doctor told her that it is his recommendation that she terminates the pregnancy, he wanted her to get the blood test done and then discusse the termination. I know that they dont do mri cause they dont really no what risks it has on the unborn child. Does anyone know anyone who had MRI done whiles pregnant and there child was fine with no defects or any information you can find on this. she had a misscarry a wile ago and she wants to be happy but cant cause she is worried. Feel so sorry for her but happy at the same time. She is a really good friend and I just wasnt to reasure her that her baby will be ok and she will be a great mum in 9 months. Thanks

I found this information.

MANAGING PREGNANT PATIENTS WHO ARE IRRADIATED

Relative agreement exists on when to recommend termination of pregnancy after radiation exposure. The so-called "Danish rule" was offered in 1959 by Hammer-Jacobsen, who suggested termination was advisable for a fetal dose of over 10 rads [1]. This guideline has been widely followed. Wagner et al suggest termination should only be considered if a radiation dose of over 5 rad occurs between 2 and 15 weeks of gestation, and is probably indicated only for doses over 15 rad. Hall suggests termination may be considered for a radiation of over 10 rad received between a gestational age of 10 days and 26 weeks [2]. In practice, it is exceptionally unlikely that any single radiological study would deliver a radiation dose sufficient to justify termination. Nonetheless, it is helpful to be aware of the expected radiation dose from common procedures [3, 4], and the magnitude of risk to the fetus per unit dose. This information, which is listed below, can be used to counsel pregnant patients who require a study involving ionizing radiation to the pelvis, or who inadvertently undergo such a study at a time when pregnancy is unsuspected.

Procedure
Conceptus radiation dose (rads*)
Abdominal radiograph
0.25

Intravenous pyelogram
0.8

Barium enema
0.8

Lumbar spine radiographs
0.6

CT pelvis
1-10


Note: 1 rad = 1 cGy = 10 mGy = 10,000



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