We aimed to assess the difference in measurement of the distance of the UVC tip from the diaphragm betweenud(Anteroposterior) AP and lateral radiographs and to determine the reliability of the measurement of UVC tip distanceudfrom the diaphragm between the two views. A retrospective review of paired AP and lateral radiographs taken to assessudUVC tip position was carried out in 25 infants was conducted and reliability analysis was carried out. There was audsignificant difference in the mean (SD) distance of the UVC catheter above the diaphragm between the AP and lateraludradiographs: 8.7 (7.8) mm versus 11.6 (7.3) mm (p=0.003) respectively. Measurements using lateral radiographs wereudmore reliable (Intraclass correlation coefficient: 0.99 vs. 0.93). Inter-observer reliability analysis yielded similarudresults. Lateral radiographs are more reliable in measurement of UVC tip position and should be performed inudconjunction with AP films to aid in determining UVC position.
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机译：我们的目的是评估在 ud（前后）AP和侧面X线照片之间测量UVC尖端到隔膜的距离的差异，并确定在两次视图之间测量UVC尖端到隔膜的距离 ud的可靠性。回顾性回顾了成对的AP和侧面X线照片，以评估 udUVC尖端位置，对25例婴儿进行了可靠性分析。 UVC导管在AP和侧位X线照像仪之间的横隔膜上方的平均（SD）距离有显着差异：分别为8.7（7.8）mm和11.6（7.3）mm（p = 0.003）。使用侧面X光片的测量更加可靠（类内相关系数：0.99 vs. 0.93）。观察者之间的可靠性分析得出了类似的结论。横向X射线照片在测量UVC尖端位置时更可靠，应与AP膜结合使用以帮助确定UVC位置。
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