三维虚拟现实成像结合二维超声图像可视化评价婴幼儿髋关节发育不良栗平,张元智,窦蕊,郭志英内蒙古医科大学第二附属医院超声科,内蒙古自治区呼和浩特市010030Three-dimensionalvirtualrealityimagingcombinedwithtwo-dimensionalultrasoundimagesforthevisualevaluationofhipdysplasiaininfantsLiPing,ZhangYuan-zhi,DouRui,GuoZhi-yingDepartmentofUltrasound,SecondAffiliatedHospitalofInnerMongoliaMedicalUniversity,Hohhot010030,InnerMongoliaAutonomousRegion,China摘要背景:超声检查已广泛应用于婴幼儿发育性髋关节发育不良的筛查,但有报道指出,在不同的检查者之间检查结果存在显著差异,即使在同一检查者的重复检查中也会存在偏差,因此认为超声在诊断成像准确性方面证据不足。目的:通过三维重建虚拟现实图像显示髋臼及股骨头的空间立体结构,获得一个新的参数,从而丰富Graf超声诊断技术的测量标准,进一步增强髋关节发育不良诊断结果的可信度。方法:选取国人婴幼儿新鲜尸体标本10具(男性5具,女性5具),应用Graf二维超声法对髋关节扫查,并同时行多排螺旋CT三维重建,再将容积重建与表面重建拟合,显示髋关节周围解剖结构,模拟Graf二维超声法对三维虚拟现实图像进行a角和β角的测量。结果与结论:通过三维重建虚拟现实图像对二维Graf方法测量的验证,证实二维Graf方法测量α角和β角可以真实反映骨性髋臼和软骨髋臼的发育情况。Graf二维超声技术可对新生儿髋关节发育状况做出正确评价,可以将Graf二维超声法作为髋关节发育不良的常规检查。说明熟练掌握Graf超声检查技术和严格掌握髋关节发育不良评判标准是髋关节发育不良诊断的重要保障。中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱;骨折;内固定;数字化骨科;组织工程关键词:植入物;数字化骨科;髋关节发育不良;Graf超声技术;三维虚拟现实图像;多排螺旋CT;三维重建;内蒙古自治区自然科学基金;Abstract:BACKGROUND:Ultrasoundhasbeenwidelyusedindevelopmentalhipdysplasiascreeningininfantsandyoungchildren,buttherearesignificantdifferencesamongdifferentinspectionfindings,eveninthereexaminationbythesameexaminer.Therefore,theaccuracyofultrasoundimaginginthediagnosisisofinsufficientevidence.OBJECTIVE:Throughvirtualrealitythree-dimensionalreconstructionimagesshowingthestructureofacetabulumandfemoralheadspace,toobtainanewparameterinordertoenrichmeasurementstandardsofGrafultrasonicdiagnosistechnologyandtofurtherimprovethecredibilityofthediagnosisofdevelopmentaldysplasiaofthehip.METHODS:TenfreshcadaverspecimensofChineseinfantswereselected,includingfivemalesandfivefemales.Two-dimensionalultrasonicmethodwasemployedforhipscreening,andatthesametime,multi-slicespiralCTwasusedforthree-dimensionalreconstructionfollowedbyvolumereconstructionandfittingofsurfacereconstructiontodisplaytheanatomicstructurearoundthehipandtosimulateGraf’stwo-dimensionalultrasoundmethodtomeasureaandβanglesonthree-dimensionalvirtualrealityimages.RESULTSANDCONCLUSION:Asconfirmedbythree-dimensionalreconstruction,Graf’stwo-dimensionalultrasoundcouldbeusedtomeasureaandangles,trulyreflectingthedevelopmentofbonyandcartilaginousacetabulum.Graf’stwo-dimensionalultrasoundcontributedtotheproperevaluationofbeonatalhipdysplasia,whichcanbeusedasaroutineexaminationfordevelopmentaldysplasiaofthehip.TheseindicatethattomasterGraf’sultrasoundtechnologyandstrictlygrasptheevaluationstandardsfordevelopmentaldysplasiaofthehipistheimportantguaranteefordiagnosisofdevelopmentaldysplasiaofthehip.中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱;骨折;内固定;数字化骨科;组织工程全文链接:Keywords:ultrasonography;imaging,three-dimensional;hipjoint;tomography,spiralcomputed;acetabulum;窗体底端中图分类号:R318基金资助:内蒙古自然科学基金资助项目(2012MS1186);内蒙古自治区高等学校科学研究项目(NJZC12161)作者简介:栗平,女,1970年生,内蒙古自治区呼和浩特市人,内蒙古医科大学毕业,硕士,副主任医师,主任,主要从事超声影像医学方面的研究。