彩色多普勒超声的临床应用课件.ppt

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1、澳大利亚热带雨林HISTORYOFULTRASOUND2D3D4DDepartmentofUltrasoundLiFeng-hua彩色多普勒超声的临床应用UltrasonicdiagnosisUltrasonicexaminationUltrasonicexaminationhasmanyadvantages:⒈无创non-invasivediagnosistechnique⒉易操作operatedeasily⒊无害notdangeousandnotharmfultothepatients⒋短期内可重复检查rep

2、eatedmanytimesintheshortperiod超声检查优势主要内容Maincontents胆囊、胰腺和肾脏Gallbladder,pancreasandKidney子宫与胎儿显像Uterusandfetus胆囊和胰腺超声检查GallbladderandPancreasUltrasonography(USG）ofthenormalgallbladder胆囊(gallbladder)Shape:pear-shaped（梨形）Size:3x9cmWallthickness:<3mmLumen:anech

3、oic(胆囊腔内呈无回声）正常声像图胆囊结石(gallstone)典型声像特征Classicsonographicsigns⑴强回声strongecho⑵清晰声影clearacousticshadow⑶随体位改变移动mobile(shiftwithpositionchanges)“胆囊－结石－声影”三合征Wall-echo-shadowcomplex(WES)原因：胆囊腔内充满结石causes:astone-filledgallbladder表现为两条弧形高回声线后方伴声影appearance:arc-shap

4、edlinesfollowedbyaacousticshadowWall-echo-shadow“胆囊－结石－声影”三合征Wall-echo-shadowcomplex(WES)结石：声影并移动Stone:Shadowingandmobile胆泥：无声影但可移动sludge:Nonshadowingandmobile息肉：无声影和移动polyp:Nonshadowingandnonmobile胆囊结石、息肉及胆泥间的鉴别诊断DifferentialdiagnosisamongStone,sludgeandpol

5、yp胆囊息肉polyp正常胆囊胆囊结石、息肉及胆泥间的鉴别诊断DifferentialdiagnosisamongStone,sludgeandpolypNormalgallbladder胆泥声像图胆囊结石、息肉及胆泥间的鉴别诊断DifferentialdiagnosisamongStone,sludgeandpolyp胆囊结石、息肉及胆泥间的鉴别诊断DifferentialdiagnosisamongStone,sludgeandpolyp正常胆囊胆囊增大Gallbladderenlargement胆壁增厚Ga

6、llbladderwallthickening>3mm胆腔内见胆泥Sludgeinthegallbladderlumen急性胆囊炎的声像特征Ultrasonographyofacutecholecystitis正常胆囊胆汁淤积sludge急性胆囊炎的声像特征Ultrasonographyofacutecholecystitis正常声像图胰腺(pancreas)大小Size:head<3cm,body<2cm,tail1~3cm胰管Pancreaticduct:<2mm回生强度Echogenicity:>liver

7、实质回声echotexturre:homogeneousUSGofthenormalpancreas胰腺(pancreas)下腔静脉theinferiorvenacava(IVC)腹主动脉aorta(AO)肠系膜上动脉superiormesentericartery(SMA)脾静脉splenicvein(SV)胰腺周围血管Pancreasandvasculature急性胰腺炎(acutepancreatitis)胰腺增大Pancreasenlargement胰腺回声减低Decreasedpancreaticech

8、ogenicity胰周积液Peripancreaticfluidcollections声像特征Ultrasonography胰周积液Perikidneyfluidcollections急性胰腺炎(acutepancreatitis)声像特征Ultrasonography急性胰腺炎(acutepancreatitis)声像特征Ultrasonography低回声肿块hypo