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WhatisPositronEmissionTomography–ComputedTomography(PET/CT)Scanning?
什么是正电子发射断层扫描-计算机断层扫描(PET/CT描?翻译:悬壶(约字)
Positronemissiontomography,alsocalledPETimagingoraPETscan,isatypeofnuclearmedicineimaging.
正电子发射断层摄影术,也叫PET成像或PET扫描,是核医学成像的一种。
Nuclearmedicineimagingusessmallamountsofradioactivematerialtodiagnose,evaluateortreatavarietyofdiseases.Theseincludemanytypesofcancers,heartdisease,gastrointestinal,endocrineorneurologicaldisordersandotherabnormalities.Becausenuclearmedicineexamscanpinpointmolecularactivity,theyhavethepotentialtoidentifydiseaseinitsearlieststages.Theycanalsoshowwhetherapatientisrespondingtotreatment.
核医学成像利用少量的放射性物质来诊断、评价或治疗各种疾病。这些疾病包括多种类型的癌症、心脏病、胃肠道、内分泌或神经系统疾病和其他疾病。因为核医学检查可以查明分子活动,所以有潜力在疾病的早期阶段识别它们。核医学还可以显示病人是否对治疗有反应。
Nuclearmedicineimagingproceduresarenoninvasive.Withtheexceptionofintravenousinjections,theyareusuallypainless.Thesetestsuseradioactivematerialscalledradiopharmaceuticalsorradiotracerstohelpdoctorsdiagnoseandevaluatemedicalconditions.
核医学成像程序是非侵入性的。除了静脉注射外,它们通常是无痛的。这些测试使用被称为放射性药物或放射性示踪剂的放射性物质来帮助医生诊断和评估医疗状况。
Radiotracersaremoleculeslinkedto,or"labeled"with,asmallamountofradioactivematerialthatcanbedetectedonthePETscan.Radiotracersaccumulateintumorsorregionsofinflammation.Theycanalsobindtospecificproteinsinthebody.Themost