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Diagnostic value and clinical application of CT/HRCT for coal workers'pneumoconiosis with large opacities
Author(s): LIU Pei-cheng, SU Han-xin, Patiguli, CAI Gui-ping, AI Xue-ru, WU Chun, WANG Yu-ling, MA Shao-qun, Awaguli
Pages: 350-
353
Year: 2007
Issue:
6
Journal: CHINESE JOURNAL OF INDUSTRIAL HYGIENE AND OCCUPATIONAL DISEASES
Keyword: 尘肺; 体层摄影术; X线计算机;
Abstract: 目的 探讨CT/高分辨率CT(CT/HRCT)对煤工尘肺(CWP)大阴影的诊断价值.方法 对62例CWP作胸部CT/HRCT扫描,并与X线胸片进行比较.结果 62例CWP X线胸片检出大阴影19例,检出率为30.6%,共检出大阴影30个;CT/HRCT检出大阴影者43例,检出率为69.4%,共检出大阴影123个.CT/HRCT较X线胸片多检出大阴影93个(4.1倍).2种检查方法的大阴影检出率比较,差异有统计学意义(X2=18.58,P<0.01).无一例X线胸片上显示大阴影而CT/HRCT未能显示者.62例CWP X线胸片检出Ⅲ期大阴影(≥1.0 cm×2.0 cm)者17例,检出率为27.4%,共检出Ⅲ期大阴影27个;CT/HRCT检出Ⅲ期大阴影34例,检出率为54.8%,共检出Ⅲ期大阴影67个,CT/HRCT比X线胸片多检出Ⅲ期大阴影40个,2种检查方法的大阴影检出率比较,差异有统计学意义(X2=9.63,P<0.01).CT/HRCT对大阴影的形态、内部结构、边缘特征、尘肺微细病变及特殊位置的大阴影均具有良好的显示能力.结论 CT/HRCT在复杂性尘肺的诊断能力明显优于X线胸片,可检出X线胸片所不能发现的大阴影,可作为尘肺的一种重要而有实用价值的辅助检查手段.
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