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| 11. | circulation in lower limbs with arterial obstructive diseases can be improved by increasing dosage of contrast |
| :对下肢动脉阻塞性病变 ,增加造影剂用量、近病变处注射造影剂 ,使用准确的延迟时间 ,可提高阻塞病变远端血管和侧支循环的显示率。 |
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| 12. | The contrast agent having been injected, the abscissa of the time-density curve of the artery and the |
| 注入对比剂后，动态CT图像中动脉及组织的时间-密度曲线的横坐标为时间，纵坐标为注药后增加的CT值， |
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| 13. | Materials and methods: 102 normal volunteers were examined and the oral fat-density contrast agent was |
| 材料与方法； 受检正常人102例，口服脂肪密度造影剂为15％花生油乳剂，经常规上腹部CT扫描后，观察胃体部及贲门部胃壁形态并进行测量，经统计学处理得出平均值。 |
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