影响高千伏X线胸片对比度的因素分析

Affects the high kilovolt X sternum contrast gradient factor analysis

目的：探究影响高千伏X线胸片对比度的因素.方法：对影响高千伏胸片对比度的各种因素进行分析,结合实际情况为高千伏胸片的质量控制提供依据.结果：通过质量控制方法的完善,高千伏胸片优良率达到了81.7%,比先前的65.2%提高了15.5%,废片率低至4.2%,比先前的5.7%降低了1.5%,对比度技术缺陷例数大大减少.结论：影响高千伏X线胸片对比度的因素很多,包括被照体本身因素、X线的因素、摄影设备及X线胶片因素等.多种因素综合进行人为干预,是改善高千伏X线胸片质量的关键.

Objective：The inquisition affects the high kilovolt X sternum contrast gradient the factor. Methods：To affects the high kilovolt sternum contrast gradient each kind of factor to carry on the analysis,the union actual situation provides the basis for the high kilovolt sternum quality control. Results： Through the quality control method consummation, the high kilovolt sternum fine rate had achieved 81. 7% ,compared to formerly 65.2% enhanced 15.5% ,the wasted print rate has lowered to 4.2% ,compared to formerly 5.7% reduced 1.5% ,the contrast gradient technology flaw example number big reduction. Conclusion： Affects the high kilovolt X sternum contrast gradient the factor to be very many,including illuminated body itself factor, X factor, camera installation and X film factor and so on. Many kinds of factor synthesis carries on the artificial intervention,is improves the high kilovolt X sternum quality the key.