Linked Life Data

21452736

Source:http://linkedlifedata.com/resource/pubmed/id/21452736

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2011-4-1
pubmed:abstractText
In diagnostic CT imaging, multiple important applications depend on the knowledge of the x-ray spectrum, including Monte Carlo dose calculations and dual-energy material decomposition analysis. Due to the high photon flux involved, it is difficult to directly measure spectra from the x-ray tube of a CT scanner. One potential method for indirect measurement involves estimating the spectrum from transmission measurements. The expectation maximization (EM) method is an accurate and robust method to solve this problem. In this article, this method was evaluated in a commercial CT scanner.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0094-2405
pubmed:author
pubmed:issnType
Print
pubmed:volume
38
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
993-7
pubmed:meshHeading
pubmed:year
2011
pubmed:articleTitle
CT scanner x-ray spectrum estimation from transmission measurements.
pubmed:affiliation
Department of Radiology, Mayo Clinic, 200 First Street Southwest, Rochester, Minnesota 55905, USA.
pubmed:publicationType
Journal Article, Research Support, N.I.H., Extramural