摘要
在临床诊疗过程中,随着医学影像新技术的不断应用,从健康体检到疗效评价都离不开影像学的支持。随着受检人群的增多,如何保障患者检查安全,提高影像诊断的精准性是放射科亟需解决的问题。X线辐射危害和对比剂不良事件是影像检查过程中主要的安全隐患。采用辐射防护新技术、优化检查序列,以及降低X线扫描剂量等方法可减少X线对患者的辐射。减少对比剂用量可降低计算机断层成像(CT)、磁共振成像(MRI)增强检查发生严重副反应的风险。应用无对比剂的磁共振血管成像(MRA)新技术,使肾功能差或对比剂过敏患者同样可进行血管成像检查。能量、功能和分子等成像新技术的临床应用可提升影像诊断的准确性,使影像诊断从形态解剖学水平上升到功能和分子水平。影像技术是一门多学科交叉的边缘学科,只有通过技术革新和检查方案的优化,才能不断满足临床对精准影像日益增长的需求。重视影像检查中可能出现的安全事件,避免重复检查导致的医疗资源浪费,让被检者从中受益。
Along with the application of new medical imaging technology,the clinical diagnosis and treatment relies more and more on the support of imaging study,from health examination to curative effect evaluation.It becomes more prominent than ever to protect the safety of patients and to improve the accuracy of diagnostic imaging with the increasing number of examinee.X-ray radiation hazards and adverse events of contrast agent are major hidden safety risks in the imaging process.The new technology of radiation protection,optimization of check sequence,as well as the dosage reduction of X-ray scanning can reduce the X-ray radiation hazards to examinee.Decreasing the amount of contrast agent can reduce the risk of severe adverse events in CT or MRI enhanced scan.Non-contrast MRA imaging make angiography possible for the patients with renal insufficiency or contrast-allergy.The clinical application of new image techniques,such as energy imaging,function imaging and molecular imaging,not only contribute to improve the accuracy of diagnostic imaging,but also facilitate diagnostic imaging from morphological and anatomic level extending to functional and molecular level.It is the only way to meet the growing clinical demands on precise imaging with technical innovation and optimization.In order to guarantee the benefit for every examinee,we need highly concern about how to avoid any possible safety incidents during imaging examination and the waste of medical resources caused by repeat examination.
出处
《四川大学学报（医学版）》
CAS
CSCD
北大核心
2012年第4期573-577,共5页
Journal of Sichuan University(Medical Sciences)
