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ID:24228993
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页数:4页
时间:2018-11-13
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1、(1)Toprospectivelyevaluatetheeffectofheartrate,heartratevariability,andcalcificationdual-sourcecomputedtomography(CT)imagequalityandtoprospectivelyassessdiagnosticaccuracyofdual-sourceCTforcoronaryarterystenosis,byusinginvasivecoronaryangiographyasthereferencestandard.前瞻性评价心率、心率变兄性及钙化双源计算机断层扫描成像质暈
2、的影响及对冠状动脉狭窄的双源性冠状动脉狭窄诊断的准确性评价。以佼入性冠状动脉造影为参照标准。malignantlesions.Performanceofneedleaspirationandneedlelocalizationproceduresfollowedbyexcisionalbiopsyisfrequentlynecessarytodeterminetheoriginofamammographicfinding.虽然摄影是乳腺癌的形态学标准,乳房可见检测相当敏感,经常不足的恶性病变良性分化性能。穿刺针定位切除活检程序经常需要确定一个X线发现的起源(2)Chestradiograp
3、hyplaysanessentialroleinthediagnosisofthoracicdiseaseandisthemostfrequentlyperformedradiologicexaminationintheUnitedStates.SincethediscoveryofXraysmorethanacenturyago,advancesintechnologyhaveyielednumerousimprovementsinthoracicimaging.Evolutionaryprogressinfilm-basedimaginghasledtothedevelopmentof
4、excellentscreen-filmsystemsspecificallydesignedforchestradiography.胸部X线摄影中起着至关重要的作用在胸部疾病的诊断,是最常用的影像学检査在美国。由于发现X射线(4)Therefore,initiativeshavebeentakenamongradiationprotectionauthoritiestogiveprioritytoinvestigationsofdoselevelsandfrequenciesofX-rayexaminationsamongchildren.Themainobjectiveistoesta
5、blishrecommendationofupperdoselimitsforvariousdiagnosticproceduresandtoimplementminimumrequirementsforequipmentstandards.因此,在辐射防护当局之间采取了主动行动,优先考虑儿童的剂量水平和频率的调査。主要目标是建立各种诊断程序的上限的建议,并实施设备标准的最低要的一个多世纪前,技术的进步得到了大量的改进,在求0胸部影像。电影为基础的成像的进化进展,导致了专门设计用于胸部放射摄影的优秀的屏幕膜系统的发(4)Thus,theaimofourstudywastoprospecti
6、velyevaluatetowhatextentimagequalityin16-detectorrowCTcoronaryangiographyisafunctionoftheheartrateandimagereconstructiontechnique.因此,我们的硏究的目的是前隐性评估在何种程度上(3)althoughmammographyisquitesensitiveforthedetectionofbreastcancermorphologiccriteriathataremammographicallyvisiblearefrequentlyinsufficientfort
7、hedifferentiationofbenignfrom的图像质量在16检测器行冠状动脉造影是一个功能的心脏速率和图像重建技术。(5)Theaimofourstudywastoprospectivelyevaluatetheeffectofheartrate,heartratevariability,andcalcificationondual-sourceCTimagequalityandtoprospectivel
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