RE: Exposure from a typical ER x-ray

["North, David" <DNorth@Lifespan.org>]

For a "typical" adult patient in our E.R., which has common x-ray machines
whose total beam filtration is about 2.6 mm Al eq., some representative
estimated ESE's and mean doses (averaged through the thickness of the body
part and using grids) are:

Exam			Thickness	SID		ESE		Mean
Dose
AP skull		18 cm		44 in		179 mR	39 mrad
AP C-spine		12		"		77		17
PA chest		20		72		34		7
Esophagus		20		44		253		56
AP T-spine		20		"		225		50
KUB			23		"		406		89
AP pelvis		23		"		487		107
AP hips		20		"		451		99
AP L-S spine		23		"		487		107
Lat L-S spine	35		"		903		199
AP femur		15		"		199		44

David L. North, Sc.M. DABR
Associate Physicist
Department of Medical Physics
Rhode Island Hospital
593 Eddy St.
Providence, RI 02903
ph: (401)444-5961
fax: (401)444-4446
dnorth@lifespan.org


> ----------
> From: 	Steven Dapra
> Reply To: 	radsafe@romulus.ehs.uiuc.edu
> Sent: 	Monday, July 17, 2000 22:59
> To: 	Multiple recipients of list
> Subject: 	Exposure from a typical ER x-ray
> 
> July 17
> 
> Let's assume that a patient is brought to an emergency room and needs an
> x-ray to determine the extent of his injury.  It could be anything -- car
> wreck, fell off a scaffold (broken bones), gunshot wound, stabbing.
> 
> What is the exposure (in millirems) for a "typical"  or "average"
> emergency
> room x-ray?
> 
> Thank you for your assistance.
> 
> Steven Dapra
> sjd@swcp.com
> 
> 
> 
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