TABLE 5

Normalized (to CTDIfree-in-air) Maternal Organ and Embryo/Fetal Dose Data for Pregnant Patients Subjected to CTPA Exposure at 80 kV

Gestational stage (mo)
Parameter0369
BMI (kg/m2)19.7/22.919.7/22.919.7/22.919.7/22.9
Site
 Breast0.481/0.4410.481/0.4420.483/0.4430.484/0.445
 Colon0.005/0.0040.005/0.0040.005/0.0040.005/0.004
 Lung0.482/0.3970.482/0.3970.526/0.4270.526/0.433
 Red bone marrow0.130/0.1070.130/0.1050.129/0.1000.126/0.099
 Stomach0.064/0.0570.067/0.0600.081/0.0700.081/0.071
 Gonads0.007/0.0060.007/0.0060.007/0.0050.006/0.006
 Bladder0.007/0.0050.007/0.0050.006/0.0040.006/0.004
 Esophagus0.272/0.2180.271/0.2190.277/0.2200.280/0.223
 Liver0.092/0.0820.092/0.0820.119/0.1030.119/0.103
 Thyroid0.135/0.1170.136/0.1180.137/0.1160.138/0.118
 Bone0.260/0.2130.259/0.2100.257/0.2000.255/0.199
 Brain0.014/0.0140.014/0.0140.014/0.0150.014/0.014
 Salivary glands0.016/0.0160.016/0.0160.017/0.0160.0165/0.016
 Skin0.082/0.0770.081/0.0770.079/0.0750.076/0.071
 Remainder0.118/0.1040.119/0.1040.1180.1040.122/0.108
Maternal effective dose0.18/0.150.18/0.150.19/0.150.19/0.15
Embryo/fetal dose0.008/0.0060.010/0.0070.010/0.0090.009/0.006