Cover Image
QR Code

Clinical value of spectral CT in diagnosis of negative gallstones and common bile duct stones.

Objective: To investigate the clinical value of spectral CT in diagnosis of negative gallstones and common bile duct stones primarily.Methods: All patients diagnosed with negative biliary stones were analyzed and examined by spectral CT scanner retrospectively. Based on acquired raw imaging data, im...

Full description

Published in:Abdominal Imaging Vol. 40; no. 6; pp. 1587 - 1595
Main Authors: Li, Huanguo, He, Dong, Lao, Qun, Chen, Xingcan, Liu, Miao, Yin, Bingxin, Zhao, Kaiyu, Wang, Rui, Chen, Longxia
Format: Journal Article
Published: Springer Nature Aug2015
Online Access:View this record in EBSCOhost
fields @attributes:
  recordID: 1
pdfLink:
plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=109620236&site=ehost-live
header:
  @attributes:
    shortDbName: ccm
    uiTerm: 109620236
    longDbName: CINAHL Complete
    uiTag: AN
  controlInfo:
    bkinfo:
    dissinfo:
    jinfo:
      jid:
        09428925
        O52
      jtl: Abdominal Imaging
      issn: 09428925
      maglogo: N
    pubinfo:
      dt: Aug2015
      vid: 40
      iid: 6
      pid: 237
      pub: Springer Nature
      place: New York, New York
    artinfo:
      ui:
        109620236
        NLM25725795
        2013128407
        10.1007/s00261-015-0387-y
        NLM25725795
        109620236
      ppf: 1587
      ppct: 8
      formats:
        fmt:
          @attributes:
            type: P
      tig:
        atl: Clinical value of spectral CT in diagnosis of negative gallstones and common bile duct stones.
      aug:
        au:
          Li, Huanguo
          He, Dong
          Lao, Qun
          Chen, Xingcan
          Liu, Miao
          Yin, Bingxin
          Zhao, Kaiyu
          Wang, Rui
          Chen, Longxia
      sug:
      ab: Objective: To investigate the clinical value of spectral CT in diagnosis of negative gallstones and common bile duct stones primarily.Methods: All patients diagnosed with negative biliary stones were analyzed and examined by spectral CT scanner retrospectively. Based on acquired raw imaging data, image series were reconstructed as described below: the optimal contrast-to-noise ratio monochromatic energy images, calcium- and fat- based material decomposition images and spectral curve images. All these imaging series were analyzed quantitatively and qualitatively.Results: The contrast between negative stones and adjacent bile was 6.87 ± 5.48 HU on hybrid energy CT images and 47.30 ± 24.05 HU on optimal monochromatic energy CT images. The mean concentration of calcium in bile and negative stones was 19.36 ± 5.12 and 3.88 ± 6.60 mg/mL, and the fat in bile and negative stones was 998.48 ± 11.79 and 1035.68 ± 15.36 mg/mL. Effective atomic number Z of negative stones (6.60 ± 0.45) was lower than that of bile (7.65 ± 0.13). The slopes of the spectral curves for negative stones were k 90-40KeV = 1.43 ± 0.63 and k 140-90KeV = 0.19 ± 0.08, and for bile, they were k 90-40KeV = -0.27 ± 0.09 and k 140-90KeV = -0.04 ± 0.01. The same stone showed different densities in different imaging groups. The positive rate of conventional CT images was lower than that of other imaging groups.Conclusion: Spectral CT has a high diagnostic value for negative gallstones or bile duct stones, and material decomposition CT images and spectral curves can make an accurate diagnosis.
      pubtype: Academic Journal
      doctype: Journal Article
      ougenre: Article
    language: English
    refInfo:
    holdings:
      @attributes:
        islocal: N