Ozgür F, Tunçbilek G, Cila A
Department of Plastic and Reconstructive Surgery, Hacettepe University, Ankara, Turkey.
Ann Plast Surg. 2000 Jan;44(1):8-13. doi: 10.1097/00000637-200044010-00002.
Several radiological methods have been utilized to assess velopharyngeal function. The more recent imaging technique, magnetic resonance imaging (MRI), which has a number of advantages over radiographic and computed tomographic imaging, has been used rarely for evaluating velopharyngeal insufficiency. In this study, 5 normal volunteers and 10 patients with surgically repaired cleft palate were examined with MRI using midsagittal, coronal, and axial images. Nasoendoscopy was also performed to complete and confirm the diagnoses. Complete and tight closure of the velopharynx and full backward and upward movement of the soft palate was observed in volunteers. In coronal images, medial movement of lateral pharyngeal walls could also be seen. Despite this, patients with surgically repaired cleft palate had some degree of motion of the soft palate, ranging from no movement to maximal movement. In most of the patients, short soft palates with restricted motion was seen. MRI visualizes the velopharyngeal sphincter in all planes and provides high-resolution images of the soft tissues. Objective measurements can be made as well. In this study, MRI and nasoendoscopy were used together in the diagnosis of velopharyngeal insufficiency and gave satisfactory results.
已经采用了多种放射学方法来评估腭咽功能。最新的成像技术——磁共振成像（MRI），相较于放射成像和计算机断层扫描成像具有诸多优势，但很少用于评估腭咽功能不全。在本研究中，对5名正常志愿者和10名接受过腭裂手术修复的患者进行了MRI检查，采用了矢状面、冠状面和轴位图像。还进行了鼻内镜检查以完善和确诊。在志愿者中观察到腭咽完全且紧密闭合，软腭完全向后上方移动。在冠状面图像中，还可看到咽侧壁向内侧移动。尽管如此，接受过腭裂手术修复的患者软腭仍有一定程度的运动，范围从无运动到最大运动。在大多数患者中，可见软腭短且运动受限。MRI能在所有平面显示腭咽括约肌，并提供软组织的高分辨率图像。也可进行客观测量。在本研究中，MRI和鼻内镜检查联合用于腭咽功能不全的诊断，取得了满意的结果。
