Cover Imaging for Physicists

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Example: 4D Liver Perfusion Protocol
Scan kV mA Rot. Time
Sample
Time
Acquisition
Interval
Total
Acquisition
time
1 100 kV 100 mA 0.5 s 10 – 30 s 2 20 s
2 100 kV 100 mA 0.5 s 37 – 57 s 4 20 s
3 100 kV 100 mA 0.5 s 64 – 88 s 8 24 s
4 100 kV 100 mA 0.5 s 95 - 115 s 10 20 s
CTDI = 64.8 mGy (2.7 mGy per volume)
DLP for whole organ 16 cm = 1053
Effective Dose (k = 0.015) = 15.8 mSv