ct重建颌面部的影像学解剖分析

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1、walJd锄娉edareainaccordancewiththeclassificationandanalysisofstatistics．Scanmge：1cmto雠in觎orbitaJsupraorbit甜1cm．ImagesobtaineduSingMPR(MPRreconstmctlon)teclmologylineofcoronal，sagittala11drampsreo唱a11izationof恤eorbitalwall的c眦咖eandextentofmed锄aget0system删ysistoidenti母tllemedialorbitalwa

2、llweakpoi鸸t11ediscussionorbitalpressureisincreaSedTotheprincipleoforbitaJwallfractllreeaSilyobtainedmedialorbitalwall丘actureofreaSons．80caSesoforbital、vaUn．accurepatlentsu11derwent64一slicespiralCTscan，double．blindme也odu11dertheconditionsofconvention酊faultdiagnosis，datao抵nedmervoluIl

3、lerende血g(VR)，64·sliceCT，”isotropic”ofVRsecondarydiagnosisinmereconstmctionofconditions．t、VodiagnosticresultswerecomparedaIldmefinaldiagnosisforstatisticalanalysis．3-FrommelaboratoWtofindamaleandfemalesl(ull，headtotakeorbitalmedi甜walloftllehandsawsawing，peelingtheetlunoidbonetoobser

4、VetheorbitalwallofeachIir出pointcalibration，VideoimagesareobtainedandeaLsytofindthelocationofthebones切ndard．SpiralCTsc锄inga11dMPRreconstmctionpara瑚eters：v01umescaIl，120kV380mA，gant叫rotation0．33s／circle，thickness仔om2mmpitcha512×512arraybonewindow：丽ndowleVelC450，bandwidthW1500；so矗tissu

5、e丽ndow：windowlevelwindowC40W80widescanforcoronal，a)(iala11dsagittmmultiplaIlarreconstmction．ReconstllJctionp猢eters：orientation，like：120KV35mABonewindow：sliceO．75mmreconincrement0．7mmkemelH60ssharpwindowOlslteoSoRtissuewindow：slice0．75mmreconincrement0．7mmkemelH30smediumsmooths+windo

6、wcrebrumResuIts：W．eakpointoftheorbitalplateandorbitalwalliseasytobursttherelationshipbetween行acture10cation1、veakpoint10cated1／3a11d2／3ofthe33caSesmorethanislocatedl／3and2／3oftlle27caSesmedi恐rencewaSnotstatisticallysi鲥ficant()(2=1．20，P=0．273>0．05)．Theweakpointofmelocationhadnoe仃．ect

7、int11isstudV．2orbitalwall丘actureoccurredinmorethan1／3or2／3ofme27casesoccu玳din1／3and2／3ofthose26cases，butmedi虢rencewasnotstatisticallysigTlificallt(X2=0．33，P=O．857>0．05)．Ie，纳ctureinVolVingp缸softhenon．sigllificallt．ConVentionaltomography(CT)andVRreconstructionofdiagnosticresultscompar

8、edMedialorbitalwall