多层螺旋CT肺静脉开口径线测量分析

【】目的探讨正常成人肺静脉开口径线（pulmonaryveinostia，PVO）的测量方法，并获得我院PVO径线值的95%参考值范围。方法2005年6月-2006年1月收集无明显心肺疾病的正常成人236例，对其进行多层螺旋CT扫描，利用斜冠面重建和三维标定的方法测量PVO径线。结果四条PVO径线的95%参考值范围如下右上肺静脉长径线为男性1.49~2.63cm，女性1.31~2.37cm，短径线为男性0.87~2.05cm，女性0.91~1.81cm；右下肺静脉长径线为男性1.12~2.06cm，女性1.05~1.95cm，短径线为男性0.77~1.83cm，女性0.79~1.69cm；左上肺静脉长径线为男性1.18~2.20cm，女性1.09~2.11cm，短径线为男性0.82~1.72cm，女性为0.80~1.62cm；左下肺静脉长径线为男性0.96~1.98cm，女性1.03~1.81cm，短径线为男性0.56~1.26cm，女性0.51~1.33cm。除左下肺静脉短径男女差异无统计学意义外，其余径线值男性均大于女性。结论采用CT三维重建像改进测量方法测量PVO径线值既简便又准确。？【Abstract】ObjectiveTomeasureandcalculatethediametersofpulmonaryveinostia(PVO)bymulti-slicespiralcomputedtomography(MSCT)inhealthypeople.MethodsFromJune2005toJanuary2006,236healthypeoplewereadoptedtoundergoMSCT.TheirdiametersofPVOweremeasuredandcalculatedbyobliquecoronalplanesreconstructionand3Dposition-setting.ResultsRightsuperiorveinthe95%referencerangesofthelongdiameterswere1.49-2.63cminthemaleand1.31-2.37cminthefemale;therangesoftheshortdiameterswere0.87-2.05cminthemaleand0.91-1.81cminthefemale.Rightinferiorveintherangesofthelongdiameterswere1.12-2.06cminthemaleand1.05-1.95cminthefemale;therangesoftheshortdiameterswere0.77-1.83cminthemaleand0.79-1.69cminthefemale.Leftsuperiorveintherangesofthelongdiameterswere1.18-2.20cminthemaleand1.09-2.11cminthefemale;therangesoftheshortdiameterswere0.82-1.72cminthemaleand0.80-1.62cminthefemale.Leftinferiorveintherangesofthelongdiameterswere0.96-1.98cminthemaleand1.03-1.81cminthefemale;therangesoftheshortdiameterswere0.56-1.26cminthemaleand0.51-1.33cminthefemale.Thediametersinthemalewerealllongerthanthoseinthefemale,excepttheshortdiameterofleftinferiorvein.ConclusionsItisaconvenientandaccuratemethodtomeasurethediametersofPVObybliquecoronalplanesreconstructionand3Dposition-setting.