| LDRD胸片成像特点及其伪影分析 |
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| 引用本文： | 李功杰,盛复庚,陆虹,纵照义,邢旭东,汪光尧.LDRD胸片成像特点及其伪影分析[J].医疗卫生装备,2007,28(1):69-70,74. |
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| 作者姓名： | 李功杰 盛复庚 陆虹 纵照义 邢旭东 汪光尧 |
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| 作者单位： | 解放军第307医院,北京市,100071 |
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| 摘 要： | 目的：分析低计量直接数字化X线成像系统（LDRD，Low-dose directly Digtal Radiographic Device）胸片成像特点及其伪影。方法：回顾分析188例LDRD。结果：188例中，胸廓运动伪影、左心缘有幕状突起、右心缘幕状突起及主肺动脉窗内伪影的发生率分别为1．6％、46．8％、2．6％及0．5％。结论：（1）LDRD胸片心影增大的诊断标准应略小于0．5；（2）心脏运动伪影的产生可能是多种因素综合作用的结果；（3）LDRD胸片运动伪影基本上不会对临床诊疗产生重要影响。
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| 关 键 词： | 胸片 伪影 |
| 文章编号： | 1003-8868（2007）01-0069-03 |
| 收稿时间： | 2006-07-03 |
| 修稿时间： | 2006-07-032006-12-12 |
Imaging characteristics of thoracic LDRD and artifacts analysis |
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| LI Gong-jie,SHENG Fu-geng,LU Hong,ZONG Zhao-yi,XING Xu-dong,WANG Guang-yao.Imaging characteristics of thoracic LDRD and artifacts analysis[J].Chinese Medical Equipment Journal,2007,28(1):69-70,74. |
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| Authors: | LI Gong-jie SHENG Fu-geng LU Hong ZONG Zhao-yi XING Xu-dong WANG Guang-yao |
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| Institution: | The 307th Hospital of PLA, Beijing 100071, China |
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| Abstract: | Objective To analyze the imaging characteristics of thoracic LDRD(Low-dose directly Digital Radiographic Device) and its artifacts.Methods 188 patients were performed with LDRD and common thoracic X-ray film respectively in our hospital during two weeks.Results Among the 188 cases,1.60%(3/188) showed thoracic motion artifacts.46.8%(88/188) appeared as tentorial prominence along left heart edge and 2.6%(5/188) along the right one.1 artifact was in aorta-pulmonary artery window(0.53%).Conclusion(1)Less than 0.5 should be taken as reference in podoid enlargement diagnosis.(2)Pseudomorph from heart motion may result from cardio-phase,cardiac contraction,heart rate,arrhythmia,local abnormal pulse of left heart edge,different enlarged velocity of cardiac cavity during heart beat,etc.(3)The motion artifacts in thoracic LDRD has no important influence in clinical diagnosis and therapy. |
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| Keywords: | LDRD |
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