TABLE 5

99mTc-DTPA Aerosol: Dose Estimates to the Fetus

Fetal dose
Stage of gestationmGy/MBqrad/mCimGy*rad*
Early0.00580.0210.12–0.230.012–0.023
3 mo0.00430.0160.086–0.170.0086–0.017
6 mo0.00230.00850.046–0.0920.0046–0.0092
9 mo0.00300.0110.060–0.120.0060–0.012
  • * Maternal administered activity, 20–40 MBq (0.54–1.1 mCi).

  • Data are from Russell et al. (32). Information about possible placental crossover of this compound was available and was considered in estimates of fetal doses.