TABLE 4

MIRD and TLD Values of Total Radiation Exposure in Brain and Liver

Head regionAbdominal region
Imaging conditionBrain perfusion scintigraphy (N-isopropyl-4-iodoamphetamine(123I) hydrochloride, 111 MBq)CT (brain)Total radiation exposure (mGy)Liver scintigraphy (galactosyl human serum albumin diethylenetriamine pentaacetic acid, 185 MBq)CT (liver)Total radiation exposure (mGy)
90 kVp
 25 mAs2.52+1.393.919.99+1.4011.39
 50 mAs+2.765.28+2.9912.98
 100 mAs+4.987.50+6.1616.15
 150 mAs+7.8210.34+9.2919.28
 200 mAs+11.2013.72+11.1921.18
 250 mAs+13.9316.45+14.8024.79
 300 mAs+17.0019.52+18.2328.22
120 kVp
 25 mAs2.52+3.215.739.99+3.6413.63
 50 mAs+7.299.81+7.4117.40
 100 mAs+12.6115.13+13.8823.87
 150 mAs+19.6022.12+22.1332.12
 200 mAs+25.0527.57+29.8139.80
 250 mAs+32.4835.00+32.6442.63
 300 mAs+37.7940.31+43.2353.22
140 kVp
 25 mAs2.52+5.087.609.99+5.3720.68
 50 mAs+10.1812.70+10.6920.68
 100 mAs+20.5123.03+21.0131.00
 150 mAs+27.3729.89+30.8240.81
 200 mAs+38.8341.35+42.0452.03
 250 mAs+49.9852.50+50.0860.07
 300 mAs+65.0767.59+62.1972.18