. Author manuscript; available in PMC: 2016 Dec 19.

Published in final edited form as: Australas Phys Eng Sci Med. 2014;37(3):483–493. doi: 10.1007/s13246-014-0276-7

Table 1.

Dose parameters

	SDCT	LDCT50%	LDCT25%	P
Tube current (mAs)	160	80	40	----
Age	68 ±16	67 ±12	69 ±15	0.61
Sex (male/female)	22 / 28	13 / 12	9 / 16	< 0.001
CTDI_vol(mGy)	61.44 ±1.48	31.04 ± 0.93	15.38 ± 0.86	----
DLP(mGy.cm)	1196.75 ± 64.85	596.26 ± 42.72	250.36 ± 37.44	< 0.001
Effective dose (mSv)	2.51 ± 0.14	1.25 ± 0.00	0.53 ± 0.08	< 0.001