Benefits and safety of CT fluoroscopy in interventional radiologic procedures
Benefits and safety of CT fluoroscopy in interventional radiologic procedures
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DOI：
10.1148/radiology.219.2.r01ma41515
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发表时间：
2001-05-01
期刊：
影响因子：
19.7
通讯作者：
Oberg, AL
中科院分区：
文献类型：
--
作者：
Carlson, SK;Bender, CE;Oberg, AL
目得：确定与传统CT相比，计算机断层扫描（CT）透视在引导介入放射学操作中的益处和安全性。材料和方法：通过由进行CT透视引导的放射科医生和CT技术人员完成的问卷调查，获得了203例连续经皮介入手术和99例连续常规CT引导手术的数据。程序.调查问卷专门讨论了患者和工作人员的辐射剂量测量、总手术时间、总CT透视时间、CT透视引导模式（连续vs间歇）、手术成功率、重大并发症、手术类型（活检、抽吸或引流）、手术部位和操作者经验水平。与传统CT扫描测量值相比，CT透视测量的每次手术患者吸收剂量中位数和手术时间中位数分别减少94%和32%（P <0.05）。在203例病例中，97%使用了间歇性图像采集模式。这导致所有情况下的人员辐射剂量测定读数均低于可测量水平。结论：正如作者所在机构所实施的那样，与使用传统CT引导相比，使用CT透视引导介入放射学手术显着减少了患者辐射剂量和总手术时间。
PURPOSE: To determine the benefits and safety of computed tomographic (CT) fluoroscopy when compared with conventional CT for the guidance of interventional radiologic procedures.MATERIALS AND METHODS: Data on 203 consecutive percutaneous interventional procedures performed with use of CT fluoroscopic guidance and 99 consecutive procedures with conventional CT guidance were obtained from a questionnaire completed by the radiologists and CT technologists who performed the procedures. The questionnaire specifically addressed radiation dose measurements to patients and personnel, total procedure time, total CT fluoroscopy time, mode of CT fluoroscopic guidance (continuous versus intermittent), success of procedure, major complications, type of procedure (biopsy, aspiration, or drainage), site of procedure, and level of operator experience.RESULTS: The median calculated patient absorbed dose per procedure and the median procedure time with CT fluoroscopy were 94% less and 32% less, respectively, than those measurements with conventional CT scanning (P < .05). An intermittent mode of image acquisition was used in 97% of the 203 cases. This resulted in personnel radiation dosimetric readings below measurable levels in all cases.CONCLUSION: As implemented at the authors' institution, use of CT fluoroscopy for the guidance of interventional radiologic procedures markedly decreased patient radiation dose and total procedure time compared with use of conventional CT guidance.