Musculoskeletal imaging with a prototype photon-counting detector.
Objective: To test a digital imaging X-ray device based on the direct capture of X-ray photons with pixel detectors, which are coupled with photon-counting readout electronics.Methods: The chip consists of a matrix of 256 × 256 pixels with a pixel pitch of 55 μm. A monolithic image of 11.2 cm × 7 cm...
| Publicado en: | European Radiology Vol. 22; no. 1; pp. 205 - 211 |
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| Autores principales: | , , , , , , , , , , , |
| Formato: | research Journal Article |
| Publicado: |
Springer Nature
Jan2012
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=104351092&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 104351092 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 09387994 NPH jtl: European Radiology issn: 09387994 maglogo: N pubinfo: dt: Jan2012 vid: 22 iid: 1 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 104351092 67647239 NLM21874360 2011407899 10.1007/s00330-011-2246-8 NLM21874360 104351092 ppf: 205 ppct: 6 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Musculoskeletal imaging with a prototype photon-counting detector. aug: au: Gruber M Homolka P Chmeissani M Uffmann M Pretterklieber M Kainberger F Gruber, M Homolka, P Chmeissani, M Uffmann, M Pretterklieber, M Kainberger, F affil: Department of Radiology, Medical University of Vienna, Waehringer Guertel 18-20, AT-1090 Vienna, Austria sug: subj: Elementary Particles Hand Radiography Image Interpretation, Computer Assisted Equipment and Supplies Musculoskeletal Diseases Radiography Radiographic Image Enhancement Equipment and Supplies Cadaver Equipment Design Human Image Interpretation, Computer Assisted Methods Radiation Dosage Radiographic Image Enhancement Methods ab: Objective: To test a digital imaging X-ray device based on the direct capture of X-ray photons with pixel detectors, which are coupled with photon-counting readout electronics.Methods: The chip consists of a matrix of 256 × 256 pixels with a pixel pitch of 55 μm. A monolithic image of 11.2 cm × 7 cm was obtained by the consecutive displacement approach. Images of embalmed anatomical specimens of eight human hands were obtained at four different dose levels (skin dose 2.4, 6, 12, 25 μGy) with the new detector, as well as with a flat-panel detector.Results: The overall rating scores for the evaluated anatomical regions ranged from 5.23 at the lowest dose level, 6.32 at approximately 6 μGy, 6.70 at 12 μGy, to 6.99 at the highest dose level with the photon-counting system. The corresponding rating scores for the flat-panel detector were 3.84, 5.39, 6.64, and 7.34. When images obtained at the same dose were compared, the new system outperformed the conventional DR system at the two lowest dose levels. At the higher dose levels, there were no significant differences between the two systems.Conclusion: The photon-counting detector has great potential to obtain musculoskeletal images of excellent quality at very low dose levels. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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