宝石能谱ct肾脉造影中使用低剂量对比剂的可行性研究.pdf

  本文关键词：宝石能谱CT肾动脉造影中使用低剂量对比剂的可行性研究，由笔耕文化传播整理发布。

扬州大学硕士学位论文 能图图像质量评分差异有统计学意义 x2 7．436，P 0．024 。 差异均有统计学意义。与A组比，B组51keV单能图左侧肾动脉、右侧肾动脉CT值分 异无统计学意义 x2 O．682，P 0．409 。 【结论】①宝石能谱CT行肾动脉CTA检查时，，51keV的单能图可改善图像质量。 减轻检查者的经济负担、降低对CIN潜在的风险。 【关键词】体层摄影术，x线计算机，血管造影术，肾动脉 姜伦宝石能谱CT肾动脉造影中使用低剂量对比剂的可行性研究 3 一 Abstract ordertoreducethe riskof [Objective]In contrast-induced study potential nephropathy,this the oflowdosecontrastmediuminrenal CT investigatedfeasibility arteryangiographyusing CT． spectral [Methods]30volunteerswere dividedinto2 and therewere15 randomly groups AB ，and volunteersineach were6malesand9femalesin meanWas43．9 A，the group．There group age ±9．7 mean was63．O±9．0andthemeanBMlwas22．3±3．0 years，theweigh Kg Kg／m2．There were7malesand8femalesin meanwas44．8±10．3 mean B，the group age years，theweigh Was andthemeanBMIWas arterial volunteersunderwent 65．1±6．5Kg 22．6±2．1Kg／m2．All CT SCanSwitha dual and140 phasespectralimaging singletube，rapid kVp 80kVp kVp GSISCan Stuberotation switchingtechnique．Theparametersincluded：helical，0．8 time，40mm detector DFOV．Thenon-ioniccontrastmediaIohexol factor：O．985：1，35cm coverage，pitch with atarateof4．0ml second median 320mgl／m1 Wasinjectedpowerinjector per through cubitalveininthetwo doseof1．5 Wasusedin thedoseof0．8m groups．The ml／kg groupA，and Wasusedin B．Volunteersinthetwo weretreatedwith30mlsalineflush．The 1／kg group groups arterial were 5safterthe of aortareached100HUonthe phase triggered densitydescending scan． monitoring monochromaticsetWasselectedfor thebestCNR ①An for optimal image obtaining desce

  本文关键词：宝石能谱CT肾动脉造影中使用低剂量对比剂的可行性研究，由笔耕文化传播整理发布。