ThepredictiveanalysisofspectralCTportalveinimagingforesophagealGgastricvaricealbleeding / 实用放射学杂志
Journal of Practical Radiology
;
(12): 451-454, 2019.
Article
in Chinese
| WPRIM
| ID: wpr-743560
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.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Journal of Practical Radiology
Year:
2019
Type:
Article
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