中图分类号：R814.43 文献标志码：A DOI：10.3969/j.issn.1003-1383.2025.09.007

    Application value of optimization of iodine contrast agent dosage combined with lowtubevoltage in headand neck CTA

    PUChanghong，WU Yingning，MA Shijing，LI Baosheng (Departmentof Radiology，Affiliated Hospital of YoujiangMedical UniversityforNationalities，Baise533ooO，Guangxi，China)

    【Abstract】ObjectiveTo explorethe aplication value of lowdoseof iodine contrastagent combined with low tube voltage in head and neck CTangiography(CTA).MethodsA prospective study was conducted，and12O patients who underwent headandneck CTA wererandomlydivided into two groups，with 6Opatients ineachgroup，anddiferent scanning andcontrast medium injection protocolswereemployed for each group.Study group were given low-dose iodinated contrast agent (5 mL) with an 8O kV tube voltage，and a contrast agent dosage of 0.6mL/kg ，while control group were given a standard-dose iodinated contrast agent(15 mL)with a 100kV tube voltage，and a contrast agent dosage of 0.9mL/kg Andthen ......