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<p><span style="font-size: 15px;">所有的Ｘ射线管尽管内部真空度很高，但是仍然还有少量的残余的气体分子。这些残余气体分子一般都分布在管件里边，比如金属表面、绝缘体、吸气剂。</span></p><p><span style="font-size: 15px;"><br /></span></p><p><span style="font-size: 15px;">当Ｘ射线管放置很长时间不使用时，这些气体分子的分布将会遭到破坏。这时，如果Ｘ射线管不经过预热就投入使用的话，就会产生某种程度的放电。所以，预热程序使得气体分子的分布重新建立。</span></p><p><br /></p><p><span style="font-size: 15px;">这时，如果Ｘ射线管不经过预热就投入使用的话，就会产生某种程度的放电。所以，预热程序使得气体分子的分布重新建立。</span></p><p><span style="font-size: 15px;"><br /></span></p><p><span style="font-size: 15px;">例如：一支４５０ＫＶ的Ｘ射线管每天用３００ＫＶ的条件连续工作六周，停止工作一两天后再在３００ＫＶ的条件工作时我们是否要训到４５０ＫＶ呢？</span></p><p><span style="font-size: 15px;"><br /></span></p><p><span style="font-size: 15px;">回答是：不需要。因为Ｘ射线管在一两天之内可以记住以前的工作条件。</span></p><p><span style="font-size: 15px;"><br /></span></p><p><span style="font-size: 15px;">所以，如果我们希望这支射线管在一个工作日内工作在不同的ＫＶ值条件下，我们必须把射线管训到所想用的最高ＫＶ值。</span></p><p><span style="font-size: 15px;"><br /></span></p><p><span style="font-size: 15px;">若射线管的最大使用参数是３５０ＫＶ，就没必要每天把射线管训到４５０ＫＶ</span></p><p><span style="font-size: 15px;"><br /></span></p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", " ingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;font-size: 17px;letter-spacing: 0.544px;text-align: justify;white-space: normal;background-color: rgb(255, 255, 255);line-height: 1.75em;box-sizing: border-box !important;word-wrap: break-word !important;"><span style="font-size: 15px;"><strong style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><span style="font-size: 15px;max-width: 100%;color: rgb(84, 141, 212);box-sizing: border-box !important;word-wrap: break-word !important;"><img src="http://mmbiz.qpic.cn/mmbiz/A1DicCH9Vl6NwvEPpQ9UicLduKRnAq5a7ou6bJRvU0pYv5UZeYOynvf4oxzURib887vhmjkTkoNc4HjCnI8yiaRqcQ/640?" class="" data-ratio="0.75" data-w="640" /></span></strong></span></p><h2 class="rich_media_title" style="margin-bottom: 14px;font-size: 22px;line-height: 1.4;color: rgb(51, 51, 51);font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "ingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;background-color: rgb(255, 255, 255);text-align: center;"><span style="color: rgb(217, 33, 66);"><strong><span style="font-size: 18px;">球管使用操作的最佳流程</span></strong></span></h2><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "ingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;font-size: 17px;letter-spacing: 0.544px;text-align: justify;white-space: normal;background-color: rgb(255, 255, 255);line-height: 1.75em;box-sizing: border-box !important;word-wrap: break-word !important;"><span style="font-size: 15px;"><strong style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><span style="font-size: 15px;max-width: 100%;color: rgb(84, 141, 212);box-sizing: border-box !important;word-wrap: break-word !important;">1. 依照CT屏幕提示，需按规定及时运行球管预热程序</span></strong><span style="font-size: 15px;max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;">。</span><br /></span></p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "ingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;font-size: 17px;letter-spacing: 0.544px;text-align: justify;white-space: normal;background-color: rgb(255, 255, 255);line-height: 1.75em;box-sizing: border-box !important;word-wrap: break-word !important;"><span style="max-width: 100%;line-height: 1.75em;font-size: 15px;box-sizing: border-box !important;word-wrap: break-word !important;">当屏幕自动出现预热提示时，操作员必须对球管进行预热，这样能够提高图像质量和提高球管的使用寿命。为提高预热效率，建议合理安排各扫描部位的病人流量。</span></p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "ingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;font-size: 17px;letter-spacing: 0.544px;text-align: justify;white-space: normal;background-color: rgb(255, 255, 255);line-height: 1.75em;box-sizing: border-box !important;word-wrap: break-word !important;"><span style="font-size: 15px;max-width: 100%;line-height: 1.75em;color: rgb(84, 141, 212);box-sizing: border-box !important;word-wrap: break-word !important;"><br style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;" /></span></p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "ingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;font-size: 17px;letter-spacing: 0.544px;text-align: justify;white-space: normal;background-color: rgb(255, 255, 255);line-height: 1.75em;box-sizing: border-box !important;word-wrap: break-word !important;"><span style="font-size: 15px;"><strong style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><span style="font-size: 15px;max-width: 100%;color: rgb(84, 141, 212);box-sizing: border-box !important;word-wrap: break-word !important;">2. 在临床应用时，除了心脏扫描外，应尽量减少0.35秒描旋转的使用</span></strong><span style="font-size: 15px;max-width: 100%;color: rgb(84, 141, 212);box-sizing: border-box !important;word-wrap: break-word !important;">。</span><span style="font-size: 15px;letter-spacing: 0.544px;">心脏扫描需启用0.35秒旋转，其他部位的扫描应该选择适当的速度，请参考原厂操作培训部建立的扫描协议，尽可能减小球管损耗。</span></span></p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "ingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;font-size: 17px;letter-spacing: 0.544px;text-align: justify;white-space: normal;background-color: rgb(255, 255, 255);line-height: 1.75em;box-sizing: border-box !important;word-wrap: break-word !important;"><span style="max-width: 100%;font-size: 15px;box-sizing: border-box !important;word-wrap: break-word !important;"><br style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;" /></span></p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "ingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;font-size: 17px;letter-spacing: 0.544px;text-align: justify;white-space: normal;background-color: rgb(255, 255, 255);line-height: 1.75em;box-sizing: border-box !important;word-wrap: break-word !important;"><span style="font-size: 15px;"><strong style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;"><span style="font-size: 15px;max-width: 100%;color: rgb(84, 141, 212);box-sizing: border-box !important;word-wrap: break-word !important;">3. 病人扫描结束后，应及时选择“End Exam”键，以便停止球管运转。</span></strong><span style="font-size: 15px;max-width: 100%;line-height: 1.75em;box-sizing: border-box !important;word-wrap: break-word !important;">扫描结束时请及时按“End Exam”键，这样极大地减少了球管在机架中空转的时间和球管旋转阳极的转数。免去球管在没必要的情况下旋转时间过长，浪费了球管的使用寿命。</span></span></p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "ingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;font-size: 17px;letter-spacing: 0.544px;text-align: justify;white-space: normal;background-color: rgb(255, 255, 255);line-height: 1.75em;box-sizing: border-box !important;word-wrap: break-word !important;"><span style="max-width: 100%;line-height: 1.75em;font-size: 15px;box-sizing: border-box !important;word-wrap: break-word !important;"><br style="max-width: 100%;box-sizing: border-box !important;word-wrap: break-word !important;" /></span></p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "ingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;font-size: 17px;letter-spacing: 0.544px;text-align: justify;white-space: normal;background-color: rgb(255, 255, 255);line-height: 1.75em;box-sizing: border-box !important;word-wrap: break-word !important;"><span style="max-width: 100%;font-size: 15px;box-sizing: border-box !important;word-wrap: break-word !important;">以上建议能使球管发挥更好的使用效果，达到更长的寿命，帮助医院节约CT的使用成本，发挥最大的效能。</span></p><p style="max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;font-size: 17px;letter-spacing: 0.544px;text-align: justify;white-space: normal;background-color: rgb(255, 255, 255);box-sizing: border-box !important;word-wrap: break-word !important;overflow-wrap: break-word !important;"><span style="max-width: 100%;font-size: 15px;box-sizing: border-box !important;word-wrap: break-word !important;overflow-wrap: break-word !important;"><img data-type="png" class="" data-ratio="0.6100178890876565" data-w="559" src="http://mmbiz.qpic.cn/mmbiz_png/A1DicCH9Vl6MK5Q8sxibcIbgTPECicmaSpkdc8Z9sZ08Rp4HCzAicktdjPgic7Q7trLRwDf6Z3zz8icJhxWHoCn4iaN0w/640?wx_fmt=png" style="box-sizing: border-box !important;word-wrap: break-word !important;overflow-wrap: break-word !important;visibility: visible !important;width: 559px !important;" /></span></p><p style="margin-top: 10px;max-width: 100%;min-height: 1em;color: rgb(51, 51, 51);font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft 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发表于 2020-10-21 12:22:30