| 低管电压联合管电流自动调节技术降低下肢动脉CTA辐射剂量 |
| |
| 引用本文： | 华海琴,康德强,徐晓娟,王岩,彭楠,刘冰,李超,王玲璞,郭鹏德.低管电压联合管电流自动调节技术降低下肢动脉CTA辐射剂量[J].中国介入影像与治疗学,2015,12(6):366-370. |
| |
| 作者姓名： | 华海琴 康德强 徐晓娟 王岩 彭楠 刘冰 李超 王玲璞 郭鹏德 |
| |
| 作者单位： | 北京中医药大学东方医院放射科, 北京 100078,北京中医药大学东方医院放射科, 北京 100078,北京师范大学医院放射科, 北京 100875,北京中医药大学东方医院放射科, 北京 100078,北京中医药大学东方医院放射科, 北京 100078,北京中医药大学东方医院放射科, 北京 100078,北京中医药大学东方医院放射科, 北京 100078,北京中医药大学东方医院放射科, 北京 100078,北京中医药大学东方医院放射科, 北京 100078 |
| |
| 摘 要： | 目的探讨低管电压结合管电流自动调节技术实现下肢动脉CTA低剂量扫描的可行性。方法将64例患者分为3组行下肢动脉CTA检查,A组管电压120kV,管电流自动调节范围50~250mA;B组管电压100kV,管电流自动调节范围50~350mA;C组管电压80kV,管电流自动调节范围100~350mA;获得腹主动脉、股动脉及腘动脉CT值、图像噪声、SNR、扫描长度(SL)、容积CT剂量指数(CTDIvol)及剂量长度乘积(DLP)。并对图像质量进行主观评价。结果3组间腹主动脉、股动脉及腘动脉CT值、图像噪声、SNR差异均有统计学意义(P均0.05)。3组间SL差异无统计学意义(P0.05),CTDIvol、DLP差异均有统计学意义(P均0.05)。A、B、C组图像均可满足诊断要求,主观图像质量评分分别为(2.50±0.51)分、(2.44±0.63)分及(2.41±0.56)分,差异无统计学意义(P0.05)。结论低管电压结合管电流自动调节技术,可在获得符合诊断要求图像的同时,降低下肢动脉CTA扫描辐射剂量。
|
| 关 键 词： | 下肢 动脉 体层摄影术 X线计算机 血管造影术 低管电压 管电流自动调节 辐射剂量 |
| 收稿时间： | 2014/10/5 0:00:00 |
| 修稿时间： | 2015/4/28 0:00:00 |
Low tube voltage combined with automatic tube current modulation technique for reducing radiation dosage in lower limb CTA |
| |
| HUA Hai-qin,KANG De-qiang,XU Xiao-juan,WANG Yan,PENG Nan,LIU Bing,LI Chao,WANG Ling-pu and GUO Peng-de.Low tube voltage combined with automatic tube current modulation technique for reducing radiation dosage in lower limb CTA[J].Chinese Journal of Interventional Imaging and Therapy,2015,12(6):366-370. |
| |
| Authors: | HUA Hai-qin KANG De-qiang XU Xiao-juan WANG Yan PENG Nan LIU Bing LI Chao WANG Ling-pu and GUO Peng-de |
| |
| Institution: | Department of Radiology, Dongfang Hospital of Beijing Traditional Chinese Medicine University, Beijing 100078, China,Department of Radiology, Dongfang Hospital of Beijing Traditional Chinese Medicine University, Beijing 100078, China,Department of Radiology, Hospital of Beijing Normal University, Beijing 100875, China,Department of Radiology, Dongfang Hospital of Beijing Traditional Chinese Medicine University, Beijing 100078, China,Department of Radiology, Dongfang Hospital of Beijing Traditional Chinese Medicine University, Beijing 100078, China,Department of Radiology, Dongfang Hospital of Beijing Traditional Chinese Medicine University, Beijing 100078, China,Department of Radiology, Dongfang Hospital of Beijing Traditional Chinese Medicine University, Beijing 100078, China,Department of Radiology, Dongfang Hospital of Beijing Traditional Chinese Medicine University, Beijing 100078, China and Department of Radiology, Dongfang Hospital of Beijing Traditional Chinese Medicine University, Beijing 100078, China |
| |
| Abstract: | |
| |
| Keywords: | Lower extremity Arteries Tomography X-ray computed Angiography Low tube voltage Automatic tube current modulation Radiation dosage |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《中国介入影像与治疗学》浏览原始摘要信息 |
| 点击此处可从《中国介入影像与治疗学》下载免费的PDF全文 |
|
