TABLE 3

Normalized (to CTDIfree-in-air) Maternal Organ and Embryo/Fetal Dose Data for Pregnant Patients Subjected to CTPA Exposure at 120 kV

Gestational stage (mo)
Parameter0369
BMI (kg/m2)19.7/22.9/26.3/30.119.7/22.9/26.3/30.119.7/22.9/26.3/30.119.7/22.9/26.3/30.1
Organ/tissue
 Breast0.540/0.494/0.462/0.4330.540/0.494/0.462/0.4330.541/0.494/0.462/0.4330.542/0.494/0.462/0.433
 Colon0.008/0.007/0.006/0.0050.008/0.007/0.006/0.0050.007/0.006/0.005/0.0040.006/0.005/0.004/0.003
 Lung0.572/0.488/0.411/0.3420.573/0.489/0.412/0.3420.625/0.527/0.440/0.3640.625/0.532/0.449/0.373
 Red bone marrow0.150/0.120/0.090/0.0700.150/0.120/0.092/0.0750.151/0.119/0.095/0.0750.150/0.117/0.090/0.068
 Stomach0.088//0.081/0.072/0.0650.090/0.083/0.075/0.0670.108/0.098/0.087/0.0770.107/0.098/0.087/0.079
 Gonads0.012/0.010/0.008/0.0070.012/0.010/0.008/0.0060.011/0.009/0.008/0.0070.010/0.009/0.007/0.006
 Bladder0.010/0.008/0.006/0.0050.010/0.007/0.006/0.0050.009/0.007/0.005/0.0040.009/0.006/0.005/0.004
 Esophagus0.357/0.299/0.247/0.2030.361/0.302/0.249/0.2040.366/0.302/0.250/0.2050.369/0.304/0.254/0.208
 Liver0.120/0.112/0.102/0.0890.120/0.111/0.101/0.0890.155/0.139/0.123/0.1060.154/0.140/0.123/0.107
 Thyroid0.176/0.161/0.145/0.1250.175/0.158/0.141/0.1230.179/0.163/0.143/0.1270.178/0.159/0.146/0.127
 Bone0.290/0.232/0.174/0.1360.290/0.232/0.179/0.1450.291/0.230/0.184/0.1450.290/0.226//0.174/0.132
 Brain0.020/0.020/0.021/0.0210.020/0.021/0.021/0.0210.020/0.020/0.021/0.0210.021/0.021/0.021/0.021
 Salivary glands0.023/0.023/0.024/0.0240.024/0.023/0.023/0.0240.024/0.024/0.024/0.0240.023/0.023/0.024/0.023
 Skin0.092/0.089/0.085/0.0820.091/0.089/0.084/0.0810.092/0.088/0.083/0.0790.090/0.087/0.081/0.077
 Remainder0.140/0.126/0.112/0.0950.141/0.127/0.113/0.0960.147/0.127/0.113/0.0970.150/0.132/0.117/0.101
Maternal effective dose0.20/0.18/0.16/0.140.20/0.18/0.16/0.140.21/0.19/0.17/0.150.21/0.19/0.17/0.15
Embryo dose0.012/0.010/0.008/0.0070.014/0.012/0.010/0.0080.015/0.014/0.013/0.0120.014/0.013/0.013/0.012