肺通气显像剂~(99)(Tc)~m-GP药盒的研制

  • 摘要: 介绍了葡糖磷脂(GP)冻干品药盒的研制及用冻干品室温标记肺通气显像剂99Tcm-GP的简单、快速方法。观察了冻干品药盒不同贮存条件下的稳定性。结果表明,冻干品分别在4℃(冷藏)保存180d、20-25℃(室温)90d和40℃(烘箱)3d的条件下,99Tcm-GP标记率均>95%。临床应用显示,99Tcm-GP与99Tcm-DTPA的30、90min肺沉积率及半清除时间(T1/2)比较有显著差异(P<0.05-0.001)。说明99Tcm-GP较99Tcm-DTPA在肺部的沉积率高、主要气道粘附少、肺清除时间长,是一种较理想的SPECT肺通气显像剂。

     

    Abstract: STUDYANDPREPARATIONOF99Tcm┐GPKITFORLUNGVENTILATIONIMAGINGZhuLinMengFanminZhangJihongHongTao(NationalResearchCentreforCertifiedReferenceMaterial,s,Beijing`NineStarNewTechnologyDevelopmentCorp.Beijing100013)LiuYunzhongLiuXiujie(CardiovascularInstituteandFuwaiHospital,ChineseAcademyofMedicalSciences,PekingUnionMedicalColege,Beijing100037)ABSTRACTThepreparationofthelyophilizingreagent,D-glucose-1-phosphate(GP)kitandthemethodofusingthiskittolabel99Tcmtoform99Tcm-GPforlungventilationimagingatroomtemperatureinasimple,rapidprocedurearedescribed.Thestabilityofthelyophilizingreagentkitundervariousstockconditionsisexamined.Theresultsshowthatalofthe99Tcm-GPyieldsbythelyophilizingreagentkitareabove95%at4℃(cold),20-25℃(roomtempera-ture)and40℃(oven)for180,90and3days,respectively.Theclinicalpracticeindicatesthatincomparisonwith99Tcm-DTPA,99Tcm-GPhasremarkablediference(P<0.05-0.001)at30,90mininbothlungdepositionrateandhalfclearancetime.Itisdemonstratedthat99Tcm-GPisanidealradioaerosolforSPECTstudiesoflungventilation.Ithashighalveolardeposi-tionratebutlowadhesioninthemajorairwayscomparedtothoseof99Tcm-DTPA.99Tcm-GPalsofeaturesprolongedpulmonaryclearancetime.Keywordslungventilationimaginglyophilizingreagentkit99Tcm-GP99Tcm-DTPA

     

/

返回文章
返回