Durak H, Ataman M, Turul H, Gürsel B, Hosal N, Bekdik C F
Hacettepe University, Faculty of Medicine, Department of Nuclear Medicine, Ankara, Turkey.
Nuklearmedizin. 1991 Oct;30(5):178-82.
Nine maxillary sinuses of 8 patients who had undergone Caldwell-Luc surgery (CWL) were injected with 100-125 microCi 99mTc-DTPA in 0.2 ml from the gingivo-buccal sulcus, passing through the canine fossa window. Sinus half-emptying times and percent contribution of the natural ostium (NO) and the naso-antral window (NA) to the clearance from the sinus were calculated, using time-activity curves as well as the activity of cotton wool plugs placed into the middle and lower conchae. Mean half-emptying times in patients in whom the mucosa had been removed were shorter than those in patients in whom it had been left in place. In the former group percent drainage through the NO was higher than that through the NA whereas in the latter group the opposite was the case. These findings are consistent with the thesis that if the mucosa is retained, the cilia continue their sweeping action towards the NO but if it is removed the NA gains importance in the drainage. This method is promising for the evaluation of maxillary sinus drainage following CWL.
对8例接受了柯-陆氏手术（CWL）的患者的9个上颌窦，经牙龈颊沟、穿过尖牙窝窗口，注射0.2 ml含100 - 125微居里99m锝-二乙三胺五醋酸（99mTc - DTPA）。利用时间-活性曲线以及置于中鼻甲和下鼻甲的棉絮栓的活性，计算窦腔半排空时间以及自然开口（NO）和鼻-鼻窦窗口（NA）对窦腔清除的贡献百分比。黏膜已被切除的患者的平均半排空时间短于黏膜保留的患者。在前一组中，通过NO的引流百分比高于通过NA的引流百分比，而在后一组中情况则相反。这些发现与以下论点一致：如果保留黏膜，纤毛会继续朝着NO进行清扫动作，但如果切除黏膜，NA在引流中变得重要。该方法在评估CWL术后上颌窦引流方面很有前景。
