Abstract:
:A simple generalization of the diffraction enhanced imaging (DEI) technique, called generalized DEI (GDEI), and its application to tomographic imaging are herein presented. In planar imaging, the GDEI algorithm combines three input images (acquired at different analyzer positions) to deliver three parametric images, providing information respectively on absorptive, refractive and ultra-small-angle scattering features of the sample. The application of the same algorithm in computed tomography (CT-GDEI), acquiring three tomographic datasets at different analyzer positions, is formally justified. Experimental tests have been conducted at the SYRMEP beamline of ELETTRA (Trieste, Italy) by means of custom phantoms, featuring absorption, refraction and ultra-small-angle scattering. The results show that CT-GDEI provides a simple way to map the information relative to the three effects in three parametric tomographic images.
journal_name
Eur J Radioljournal_title
European journal of radiologyauthors
Rigon L,Astolfo A,Arfelli F,Menk RHdoi
10.1016/j.ejrad.2008.04.026subject
Has Abstractpub_date
2008-12-01 00:00:00pages
S3-7issue
3 Suppleissn
0720-048Xissn
1872-7727pii
S0720-048X(08)00268-4journal_volume
68pub_type
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journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2004.02.008
更新日期:2005-01-01 00:00:00
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journal_title:European journal of radiology
pub_type: 杂志文章
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journal_title:European journal of radiology
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journal_title:European journal of radiology
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更新日期:2009-03-01 00:00:00
abstract::The value of CT in the staging and assessment of resectability is demonstrated in 40 patients with advanced gastric carcinoma. The accuracy of CT using the pTNM classification of gastric carcinoma was 90% in the T category, 52.5% in the N category, 80% in the M category, and 72.5% as regards the correct staging. CT es...
journal_title:European journal of radiology
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abstract:PURPOSE:Within five years after presentation 50-60% of patients with chronic limb-threatening ischemia (CLI) have died or had an amputation. We assessed the predictive value of lower extremity arterial calcification on computed tomography (CT) characteristics on both 7-years amputation-free survival and 10-years all-ca...
journal_title:European journal of radiology
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abstract::In order to adequately visualize the ossicles and other fine structures in the middle ear, sophisticated radiological methods are essential. The temporal bone has been studied with hypocycloidal tomography using conventional films and xerotomography in 60 patients with cholesteatoma. In 53 of the patients xerotomograp...
journal_title:European journal of radiology
pub_type: 杂志文章
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更新日期:1982-05-01 00:00:00
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journal_title:European journal of radiology
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journal_title:European journal of radiology
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journal_title:European journal of radiology
pub_type: 临床试验,杂志文章
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更新日期:2009-09-01 00:00:00
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journal_title:European journal of radiology
pub_type: 杂志文章
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更新日期:2017-10-01 00:00:00
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journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2013.05.005
更新日期:2013-10-01 00:00:00
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journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/s0720-048x(96)01151-5
更新日期:1997-12-01 00:00:00
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journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2008.12.006
更新日期:2010-03-01 00:00:00
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journal_title:European journal of radiology
pub_type: 杂志文章
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更新日期:2020-07-01 00:00:00
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journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2016.06.008
更新日期:2016-09-01 00:00:00
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journal_title:European journal of radiology
pub_type: 杂志文章
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更新日期:2017-02-01 00:00:00
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journal_title:European journal of radiology
pub_type: 杂志文章
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更新日期:1993-09-01 00:00:00
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journal_title:European journal of radiology
pub_type: 杂志文章
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journal_title:European journal of radiology
pub_type: 杂志文章
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journal_title:European journal of radiology
pub_type: 杂志文章
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更新日期:2013-11-01 00:00:00
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journal_title:European journal of radiology
pub_type: 杂志文章
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更新日期:2016-03-01 00:00:00
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journal_title:European journal of radiology
pub_type: 杂志文章
doi:
更新日期:1987-08-01 00:00:00
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journal_title:European journal of radiology
pub_type: 杂志文章
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更新日期:2004-11-01 00:00:00
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journal_title:European journal of radiology
pub_type: 杂志文章
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更新日期:2012-08-01 00:00:00
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journal_title:European journal of radiology
pub_type: 杂志文章,多中心研究
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更新日期:2017-11-01 00:00:00
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journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/s0720-048x(02)00009-8
更新日期:2003-03-01 00:00:00
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journal_title:European journal of radiology
pub_type: 杂志文章
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更新日期:2007-05-01 00:00:00