ThepredictiveanalysisofspectralCTportalveinimagingforesophagealGgastricvaricealbleeding
10.3969/j.issn.1002-1671.2019.03.029
- VernacularTitle:能谱CT门静脉成像对肝硬化食管胃底静脉曲张出血的预测分析
- Author:
Yali MA
1
;
Guisheng WANG
;
Xiaoxia CHEN
;
Wenwen HOU
;
Wenjuan HAN
;
Guoquan ZHAO
Author Information
1. 锦州医科大学
- Keywords:
spectralimaging;
portalvein;
computedtomography;
esophagealGgastricvaricealbleeding;
livercirrhosis
- From:
Journal of Practical Radiology
2019;35(3):451-454
- CountryChina
- Language:Chinese
-
Abstract:
Objective ToinvestigatethevalueoftheoptimalCNR monoenergeticimagesofportalveininpredictingesophagealGgastric varicealbleeding(EVB).Methods FortypatientswithlivercirrhosisandportalhypertensionunderwentcontrastGenhancedspectral CTscan.TheoptimalCNR monoenergeticimagesand70keV monoenergeticimagesoftheportalveinphasewereselectedtocompare theimagingquality.TheconsistencyoftheoptimalCNR monoenergeticimageswithendoscopyforesophagealGgastricvaricealwas analyzed by Kappa test.A ccording to the E V B history ,the patients w ere divided into bleeding group and nonGbleeding group.T he ROCcurveswerecalculatedtoassessthevaluesofthemainportalvein(MPV)anditstributariesdiameterstopredictingEVB.Results TheCNRandobjectivescoreoftheoptimalCNR monoenergeticimagesweresignificantlyhigherthanthoseofthe70keVimages(P＜0.05).TheoptimalCNR monoenergeticimageshadgoodconsistency withgastroscopeintheclassificationofesophagealGgastric variceal(k＝0.769).ThereweresignificantdifferencesofthediametersofMPV,intrahepaticleftbranchofportalvein(LPV),splenic vein(SV)andleftgastricvein (LGV)betweenthebleedinggroupandnonGbleedinggroup (P＜0.05).ROCcurveanalysisshowed thattheincidenceofEVBwashighestwithasensitivityof76.92%andaspecificityof85.71%,whentheLGVwasgreaterthan6.1mm. Conclusion TheoptimalCNR monoenergeticimagesofportalveincouldimprovetheimagingquality,andLGVdiametershouldbe ariskindicatorforpredictingEVBinlivercirrhosis.
