Whole-body CT in polytrauma patients: effect of arm positioning on thoracic and abdominal image quality
Whole-body CT in polytrauma patients: effect of arm positioning on thoracic and abdominal image quality
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DOI：
10.1007/s10140-011-0948-5
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发表时间：
2011-08-01
影响因子：
2.2
通讯作者：
Alkadhi, Hatem
中科院分区：
文献类型：
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作者：
Karlo, Christoph;Gnannt, Ralph;Alkadhi, Hatem
本研究的目的是评估不同的手臂定位技术对胸部和腹部图像质量和全身创伤CT(WBCT)辐射剂量的影响。150例多发伤患者(男性10 4例，平均年龄47±19岁)，分别在头上方(A组，n=5 0)、腹部旁(B组，n=5 0)和双臂屈曲(C组，n=5 0)的枕头上进行全身CT检查。两名盲目的独立观察者测量了肝脏、主动脉、脾、脊柱和下肺的图像噪声和分级图像质量(得分1-3)。记录照射剂量参数，测量腹部前后径和扫描长度。关于图像噪声的读者间协议(r=0.86；p
The purpose of this study is to assess the influence of different arm positioning techniques on thoracic and abdominal image quality and radiation dose of wholebody trauma CT (wbCT). One hundred and fifty polytrauma patients (104 male, mean age 47 +/- 19) underwent wbCT with arms elevated above the head (group A, n=50), alongside the abdomen (group B, n=50), and on a pillow ventrally to the chest with both arms flexed (group C, n=50). Two blinded, independent observers measured image noise and rated image quality (scores 1-3) of the liver, aorta, spleen, spine, and lower lungs. Radiation dose parameters were noted, and the abdomens' anterior-posterior diameter and scan lengths were measured. Interreader agreements for image noise (r= 0.86; p