不同强度AIFI重建技术在上腹部MRI检查中的应用.docx

不同强度AIFI重建技术在上腹部MRI检查中的应用刘晖，问雷涛，闫建峰西安高新医院放射科，陕西西安710075通讯作者：刘晔()【摘要】目的研究不同强度基于人工智能的滤波和插值图像(AIFD重建技术在上腹部磁共振成像(MRI)检查生#中的应用价值。方法回顾性分析2019年5月个2020年5月由玄王迎逃收治的66例上腹部MRI检住患者的临床资料，将资料处理后按照不同处理方法分为常规滤波电建组(n=22)、AIFl申建组(n=22)以及AIFl和漉波同时承建组(n=22),观察并比较三组患者的图像锐利度和图像峰值信噪比以及图像对比度、图像噪声、图像质量、图像清晰度评分。结果常规滤波重建组、AIH重建组(强度I、2、3、4、5)以及AIR划沈波同时承建组(AIFl强度2联合中等强度滤波及AlFl强度3联合中等强度泄波)图像锐利度与原始图像比较具有一定优势，其中AIFl重建组AIFl强度4、AIFI也3虑波同时重建组AIFl强度3联合中等强度源波图像锐利度分别为(045±0.l0)dB、(0.52±0.16)dB,均明显高于常规滤波重建组的(029±0.05)dB,且AIFI3滤波同时重建组AIFI强度3联合中等强度灌波图像锐利度为(0.52±0.16)dB,明度高于AIFl重建组强度1、2、3、4、5的(O.32±O.O7)dB.(0.35±0.08)dB、(0.37±0.09)dB、(O.45±O.IO)dB(0.40±0.ll)dB,差异力仃统计学意义(P<005)常规流波重建组、AlFl重建组(强度1、2、3、4、5)以及AlFIb别滤波同时重建组(AlFI强度2联合中等强度滤波及AIFI强度3联合中等强度滤波)图像对比度、图像噪声、图像质量、图像清晰度均显著优于原始图像，且AIFl重建组强度3、AIFI和滤波同时重建组AIFI强度2和AIFl强度3的图像对比度评分分别为(3.95±0.18)分、(4.1l10.21)分、(4.I3±0.22)分，均明显恒于常规滤波重建组的(3.37±O.I2)分，AlH重建组强度4、AIH型滋波同时由建组AIH强度2和AlFI强度3联合的图像噪声评分分别为(399±018)殳、(4.01±0.20)分、(4.02±0.21)分，明显"于常规滤波重建组的(3.89±()2)分，AIFI口滤波同时重建组AIH强度2和AIFI强度3的图像质量评分分别为(4.08±021)金、(4.14±0.22)分,明显而于常规涌波重建组的(3.48±0.l4)分,AIFI重建组强度4的图像清晰度评分为(3.99±0.19)分.明显于常规滤波重建组的(3.38±O13)分，差异均有统计学意义(P<0.05)结论中高强度AIFl重建技术的降噪表现与常规滤波比较表现更优，是种前景良好的降噪技术，其在腹部MRl中的最优参数Tl加权成像(TlWI)为AlFl强度3与常规滤波组合，双回波序列和T2加权成像(T2WI)为AlFl强度4。【关键词】磁共振成像：人工智能:滤波；图像降噪:腹部磁共振成像；Tl加权成像；T2加权成像Theapplicationvalueofartificialintelligence-basedlteringandinterpolatedimage(AIFI)reconstructiontechnologywithdifferentstrengthsinupperabdominalmagneticresonanceimaging(MRI)examinationofpatients1.uHuiWen.LeitaoYanJianfengDepartmentofRadiology.Xi'anHigh-techHospilal(710075)AbstractObjective:TCStUdytheapplicationValUeCfa门ificialintelligence-basedf11leringandinterpolatedimage(AIFI)reconsruclionIeChnOlOaVWithdifferentinensiiesinUDDerabdominalmagneticresonanceimaging(MRl)examination.Methods:Theclinicaldataof66patientsundergoingupperabdominalMRIexaminationsadmittedtoXi'anHigh-techHOSDitaIHFf>hfromMay2019toMay2020wereretrospectivelyanalyzed,AfIerPrOCeSSingIhedata,lheWeredividedinloConVenliOnalfillerreconsircliongroup(n=22).AlFlreconslruciongroup(n=22)andAIFlandfilterSimU山ancousreconslrUCliongroup(n=22)UCCordingIodiffcrcnlProCCSsingmethods.TheimageSharPneSSandPeakSignalnoiseOfthethreegrouDsOfDaIientS,lheratioandimagecontrast,inmgenoise,imagequality,andimagesharpnessscoreswereobservedandcompared.Results:Conventionalfilterreconstructiongroup,AIFIreconstructiongroup(intensityI,2,3,4.5)andAIFIjmdifiltersimultaneousreconstructiongroup(AIFIintensity2combinedwithmediumintensityfilteringandAIFIintensity3combinedwithmediumintensityfiltering)imagesharpnessandoriginalimagethecomparisonhascertainadvantages,theAIFIreconstructiongroupAlFIintensity4,AIFI,andfilteringsimultanusreconstructiongroupAIFIintensity3combinedwithmediumintensityfilteringimagesharpnessarerespectively(0.45±0.10)dBand(O.52±O.I6)dB,whicharesignificantlyhigherthanthe(0.29±0.05)dBoftheconventionalfilteredreconstructiongroup,andtheAIFIintensity3combinedwiththemediumintensityfilteroftheAIFIandthesimultaneousreconstructiongroupoftheAIFIimagesharpness(0.52±0.16)dBissignificantlyhigherthantheIFIreconstructiongroupintensityI,2,3,4,5(0.32±0.07)dB,(O.35±O.O8)dB,(O.37±O.O9)dB,(0.45±0.10)dB,(0.40±0.11)dB.thedifferencewasstatisticallysignificant(P<0.05),Conventionalfilterreconstructiongroup.AIFIreconstructiongroup(intensityI,2,3,4,5)andAIFIandfiltersimultaneousreconstructiongroup(AIFIintensity2intensityfilteringandAIFIintensity3intensityltering)imagecontrast,imagenoise,theimagequalityandimageclarityWCrCsignificantlyhigherthantheoriginalimage,andtheimagecontrastscoresofAIFIreconstructiongroupintensity3,AIFIandlteringsimultaneousreconstructiongroupAIFIintensity2intensityfilteringandAIFIintensity3intensityfilteringWere(3.95±0.18)points,(4.11±().21)points,(4.I3±O.22)points,whichWCrCSignifkanUybetterthanthe(3.37±0.12)pointsoftheconventionalfilterreconstructiongroup,AIFIreconstrctiongroupstrength4,AIFIandfilteringsimultaneousreconstructiongroupAIFIstrength2,theimagenoisescoresofintensityltcringandAIFiintensity3intensityfilteringWCrC(3.99±0.!8)points,(4.01±0.20)points,(4.02±0.21)points,whichweresignificantlyhi)herthanthe(3.89±0.12)pointsoftheconventionalfilterreconstructiongroup,theimagequalityscoresofAIFI.AIFIandfilteringsimultaneousreconstructiongroupAIFIintensity2intensityfilteringandAIFIintensity3intensityfilteringWere(4.08±0.21)pointsand(4.I4±O.22)points,whichWereSignifiCanUyhigherthanthoseoftheconventionalfilterreconstructiongroup(3.48±0.14)points,theimageclarityscore(3.99±0.19)points)ofAIFIreconstructiong11)upintensity4wassignicantlyhigherthan(3.38±0.13)pointsofconventionalfilterreconstructiongroup,thedifferencewasstatisticallysignicant(P<0.05),Conclusion:ThenoisereductionperformanceofmediumandhighintensityAIFIreconstructiontechnologyisbetterthanthatofconventionalfiltering,itisapromisingnoisereductiontechnology,theoptimalparameterTlweightedimaging(TlWI)inabdominalMRIisthecombinationofAIFIintensity3andconventionalfiltering,andthedualechosequence