Image quality and effective dose of a robotic flat panel 3D C-arm vs computed tomography
Image quality and effective dose of a robotic flat panel 3D C-arm vs computed tomography
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DOI：
10.1002/rcs.1718
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发表时间：
2016-12-01
影响因子：
2.5
通讯作者：
Richter, Peter H.
中科院分区：
文献类型：
--
作者：
Kraus, Michael;Fischer, Eric;Richter, Peter H.
背景本研究的目的是确定有效剂量和相应的图像质量的不同成像协议的机器人3D平板C形臂相比，计算机断层扫描（CT）。将体模暴露于3D C形臂和CT的不同扫描方案。将椎弓根螺钉插入新鲜猪尸体中。结果在胸腰椎交界处，三维高剂量方案（4.4mSv）和常规CT（5 mSv）以及剂量降低CT（4.0mSv）的有效剂量相当，其中三维高剂量方案（4.3mSv）和常规CT（5 mSv）的有效剂量相当。3D低剂量方案（1.0 mSv）实现了相关降低。关注Th 6，3D低剂量方案实现了类似的降低。使用钛螺钉的3D协议的图像质量被评为“良好”的所有观众，具有良好的相关性。结论现代术中3D-C臂产生的图像CT质量与低剂量辐射。版权所有（C）2015约翰威利父子有限公司
Background The aim of this study was to determine the effective dose and corresponding image quality of different imaging protocols of a robotic 3D flat panel C-arm in comparison to computed tomography (CT).Methods Dose measurements were performed using a Rando-Alderson Phantom. The phantom was exposed to different scanning protocols of the 3D C-arm and the CT. Pedicle screws were inserted in a fresh swine cadaver. Images were obtained using the same scanning protocols.Results At the thoracolumbar junction, the effective dose was comparable for 3D high-dose protocols, with (4.4 mSv) and without (4.3 mSv) collimation and routine CT (5 mSv), as well as a dose-reduction CT (4.0 mSv). A relevant reduction was achieved with the 3D low-dose protocol (1.0 mSv). Focusing on Th6, a similar reduction with the 3D low-dose protocol was achieved. The image quality of the 3D protocols using titanium screws was rated as 'good' by all viewers, with excellent correlation.Conclusions Modern intra-operative 3D-C-arms produce images of CT-like quality with low-dose radiation. Copyright (C) 2015 John Wiley & Sons, Ltd.