Prospective prediction of the major component of urinary stone composition with dual-source dual-energy CT in vivo.
Aim: To prospectively evaluate the diagnostic accuracy of dual-source dual-energy computed tomography (DSDECT) for predicting the major component and determining the composition of urinary calculi in patients with urolithiasis, using postoperative in vitro Fourier transform infrared spectroscopy (FT...
| Publicado en: | Clinical Radiology Vol. 71; no. 11; pp. 1178 - 1184 |
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| Autores principales: | , , , , , |
| Formato: | research Journal Article |
| Publicado: |
Elsevier B.V.
Nov2016
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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=118340523&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 118340523 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 00099260 23Q jtl: Clinical Radiology issn: 00099260 maglogo: N pubinfo: dt: Nov2016 vid: 71 iid: 11 pid: 467 pub: Elsevier B.V. place: New York, New York artinfo: ui: 118340523 118340523 NLM27554618 118340523 10.1016/j.crad.2016.07.012 NLM27554618 118340523 ppf: 1178 ppct: 6 formats: tig: atl: Prospective prediction of the major component of urinary stone composition with dual-source dual-energy CT in vivo. aug: au: Zhang, G.-M.-Y. Sun, H. Xue, H.-D. Xiao, H. Zhang, X.-B. Jin, Z.-Y. affil: Department of Radiology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Shuaifuyuan No.1, Wangfujing Street, Dongcheng District, Beijing, 100730, China sug: subj: Preoperative Care Methods Urinary Calculi Tomography, X-Ray Computed Methods Aged Spectrophotometry, Infrared Urinary Tract Male Middle Age Adolescence Young Adult Prospective Studies Reproducibility of Results Female Adult Aged, 80 and Over Human Aged: 65+ years Middle Aged: 45-64 years Adolescent: 13-18 years Adult: 19-44 years Aged, 80 & over Male Female ab: Aim: To prospectively evaluate the diagnostic accuracy of dual-source dual-energy computed tomography (DSDECT) for predicting the major component and determining the composition of urinary calculi in patients with urolithiasis, using postoperative in vitro Fourier transform infrared spectroscopy (FT-IR) analysis as the reference standard.Materials and Methods: Patients with known urolithiasis underwent preoperative DSDECT evaluation, and subsequently, underwent surgical removal of the stones. All patients were examined using the dual-energy renal stone protocol. Material-specific chromatic images were made using dedicated post-processing software. The final determination of stone composition was made using FT-IR postoperatively. Diagnostic parameters of DSDECT for predicting the major component and detecting the presence of four composition types were calculated.Results: A total of 81 urinary calculi were included in this study. Forty-three were pure stones and 38 were mixed stones according to FT-IR. DSDECT correctly identified the major component of all pure stones and 36 mixed stones. The major component of two mixed stones with uric acid as the major component was falsely interpreted as calcium oxalate. The overall accuracy of DSDECT for predicting the major component of stones was 97.5% (79/81). The accuracy of DSDECT for detecting the presence of four types of composition, uric acid, cysteine, hydroxyapatite, and calcium oxalate, was 97.5% (79/81), 93.8% (76/81), 80.2% (65/81), and 93.8% (76/81), respectively.Conclusion: DSDECT could accurately predict the major component of urinary calculi and detect uric acid, cysteine, and calcium oxalate with a satisfactory accuracy. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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