TABLE 4

Comparison of Our Results with Prior 2 Studies

Time-integrated activity (Bq-h/Bq)*
Patient no.Our dataStabin et al. (14)Zanotti-Fregonara et al. (15)
20.00230.0190.00351
30.02230.064
40.01870.064
50.05180.064
60.02060.064
  • * Integrals are Bq-h in fetus per Bq administered to mother.

  • Early pregnancy model was used for patient 1, 3-mo-pregnant female model for patient 2, and 6-mo model for all others, because these most closely matched their state of gestation. Dose from study of Zanotti-Fregonara et al. was reasonable to use for comparisons with dose to patient, because patients were at similar stages of gestation. Because fetus of patient 1 was at early gestational age and not well visualized, that patient was omitted from this comparison.