. Author manuscript; available in PMC: 2014 Feb 13.

Published in final edited form as: J Trauma Acute Care Surg. 2012 Dec;73(6):1406–1411. doi: 10.1097/TA.0b013e318270d2fb

TABLE 2.

Comparison of Radiation Doses from Different CT Scans With and Without ASIR

Diagnostic Study	Parameter	Non-ASIR	ASIR	Percent Change	p
CT C/A/P	CTDI_vol, mGy	17.07	14.19	−16.9	<0.001
	DLP, mGy cm	1,165	1,004	−13.8	<0.001
	NI	11.5	13.7	+19.1	<0.001
CT brain/cervical spine	CTDI_vol, mGy	61.7	49.6	−19.6	<0.001
	DLP, mGy cm	1,327	1,067	−19.5	<0.001
	NI	10.0	11.9	+19	<0.001