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. Author manuscript; available in PMC: 2015 Oct 1.
Published in final edited form as: Pediatr Radiol. 2014 Apr 23;44(10):1310–1317. doi: 10.1007/s00247-014-2983-3

Table 1.

Calculations of total blood doses

Blood dose
Tissue or organ Blood fraction
in tissue or organa 		HT b per series
for patient 1		 HT b per series
for patient 2		 HT b per series
for patient 3		 Weighted organ
doses for patient 1c 		Weighted organ
doses for patient 2c 		Weighted organ
doses for patient 3c
Thyroid 0.001 7.1 1.1 3.1 0.004 0.002 0.001
Esophagus 0.010 1.6 0.3 1.1 0.016 0.011 0.003
Lungs 0.105 0.5 0.2 0.6 0.048 0.063 0.026
Liver 0.100 0.1 0.1 0.2 0.009 0.015 0.005
Stomach 0.010 0.1 0.0 0.1 0.001 0.001 0.000
Bone marrow 0.040 1.4 4.0 8.8 0.057 0.350 0.160
Bone surface 0.008 5.0 19.0 35.8 0.040 0.287 0.152
Skin 0.030 1.1 2.7 5.3 0.032 0.158 0.082
Brain 0.012 0.8 28.4 27.4 0.010 0.329 0.341
Spleen 0.014 0.1 0.0 0.1 0.001 0.002 0.001
Pancreas 0.006 0.1 0.0 0.1 0.000 0.001 0.000
Kidneys 0.020 0.0 0.0 0.1 0.001 0.001 0.000
Total blood dose [mGy] 0.218 1.220 0.771
a

Obtained from International Commission on Radiological Protection (ICRP) Publication 89, Section 7.7.2 p 142 [32]

b

HT = Organ dose (mSv). Calculated using software CT-Expo and based on conversion coefficient for standard patients (“Child” or “Baby”)—see Materials and methods

c

Weighted organ dose = Blood fraction in tissue or organ * Organ dose (mSv)