Yokoyama M, Yamanaka N, Ishii H, Tamaki K, Yoshikawa A, Morita R
Department of Otorhinolaryngology, Wakayama Medical College, Wakayama, Japan.
Acta Otolaryngol Suppl. 1996;523:242-4.
To evaluate dynamic morphologic changes of the respiratory tract in patients with obstructive sleep apnea syndrome (OSAS), the cross section and the midline sagittal section of the upper respiratory tract of OSAS were examined using ultrafast MR imaging technique. In 10 men and 2 women diagnosed with OSAS, 30 images obtained in 30-90 s at each location of sagittal and multilevel transverse sections were observed with cineloop display in awake and sleeping status. No patients had complete pharyngeal obstruction while awake. On the other hand, 9 patients had at least one occluded site, and 3 patients had wider obstructed sites during sleep. We are convinced that ultrafast MR imaging is very useful in determining the indication and the method for surgical treatment for OSAS.
为评估阻塞性睡眠呼吸暂停综合征（OSAS）患者呼吸道的动态形态变化，采用超快磁共振成像技术对OSAS患者上呼吸道的横断面和中线矢状面进行了检查。在10名男性和2名女性确诊为OSAS的患者中，在矢状面和多层面横断面的每个位置于30 - 90秒内获取30幅图像，通过电影环显示观察清醒和睡眠状态。清醒时无患者存在完全性咽部梗阻。另一方面，9名患者在睡眠时有至少一个阻塞部位，3名患者在睡眠时有更广泛的阻塞部位。我们确信超快磁共振成像在确定OSAS手术治疗的适应证和方法方面非常有用。
