如果您无法下载资料，请参考说明：
1、部分资料下载需要金币，请确保您的账户上有足够的金币
2、已购买过的文档，再次下载不重复扣费
3、资料包下载后请先用软件解压，在使用对应软件打开
CaseDiscussionAxialarterialphaseAxialarterialphaseAxialvenousphaseCoronalarterialphaseSagittalvenousphaseCrohndiseaseAninflammatorydiseaseofthegastrointestinaltractthattypicallyhasanindolentcourseCharacterizedbyintestinalulceration,strictures,andfistulaformationCommonlyaffectsyoungadults,smallbowel,particularlytheterminalileumSmallbowelinvolvementinCrohndiseaseistypicallytransmural,withskiplesionsCTandMRICTandMRIUsefulfordifferentiatingbetweenactiveandfibroticbowelstricturesAllowingvisualizationoftheentirethicknessofthebowelwallDepictingextraentericinvolvementProvidingmoredetailedandcomprehensiveinformationabouttheextentandseverityCombsignFathalosignBowelwallenhancementBowelwallthicknessStrictureandfistulaMesenteric/intra-abdominalabscess(15%-20%)orphlegmonformationUlcerationsandlossofhaustrationCreepingfatCombsignProminenceofthevasarectaadjacenttotheinflamedloopofbowelTransmuralextensionofinflammationacrosstheserosaandtoengorgementofthehyperemicvasarectasurroundingtheinflamedbowelsegmentNotpathognomicofCrohndiseaseFathalosignInfiltrationofthesubmucosawithfat,betweenthemuscularisandthemucosaConfusedwiththefatringsignofmesentericpanniculitisNearlypathognomonicofinflammatoryboweldisease(Crohndiseaseandulcerativecolitis)BowelwallenhancementTheresultofincreasedvascularpermeabilityandangiogenesisThemostsensitiveindicatorofactiveCrohndiseaseEnhancementcanbegradedbycomparingtotheprecontrastimagesMinorincreasedenhancementModerateenhancementMarkedenhancementNoabnormalenhancement:equivalenttonormalbowelwallHomogeneousBowelwallthicknessNormalbowelwallthickness：lumendistended，1-2mm；lumencollapsed,3-4mmMild:3-5mmModerate:5-7mmMarked:>7mmOneofthemostcommonsigns,butnotspecificCorrelateswellwiththeseverityofthediseaseactivityMeasurewhenlumendistendedwellBlackborderartifactscandistortthicknessmeasurementsStrictureAcomplicationofCrohndiseaseReversiblestricturesproducedbyactivediseaseAlackofenhancementandlossofstratificationmightbeseeninthe
立即下载
