Occlusion and narrowing of the pharyngeal airway in obstructive sleep apnea: evaluation by ultrafast spoiled GRASS MR imaging.
Occlusion and narrowing of the pharyngeal airway in obstructive sleep apnea: evaluation by ultrafast spoiled GRASS MR imaging.
复制标题
阻塞性睡眠呼吸暂停中咽部气道的闭塞和狭窄：通过超快损坏的 GRASS MR 成像进行评估。
DOI：
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发表时间：
1992
期刊：
影响因子：
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通讯作者：
P. Westbrook
中科院分区：
文献类型：
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作者：
F. Shellock;C. Schatz;P. Julien;F. Steinberg;T. Foo;M. Hopp;P. Westbrook
阻塞性睡眠呼吸暂停综合征患者咽部气道形态异常是常见的。这些咽气道结构的改变可以在清醒的患者中通过使用快速成像技术检测到。10例经临床证实的阻塞性睡眠呼吸暂停患者进行了咽部气道稳态（GRASS）MR成像的超快破坏梯度回忆采集，以确定是否存在阻塞和/或阻塞。在一个正中矢状面和八个横向平面通过咽气道获得12个连续图像。当患者安静呼吸时，以每1.04秒一幅图像的速率获得扫描。在所有患者的MR图像上检测到咽气道的闭塞或扩张。闭塞的部位以及翼片的部位和程度各不相同。6名患者有闭塞，4名患者有一个或多个部位的闭塞。这项研究表明，超快扰流GRASS MR成像可用于评估患者的阻塞性睡眠呼吸暂停在潮式呼吸，是有用的，以确定是否存在阻塞和咽部气道。
Morphologic abnormalities of the pharyngeal airway are frequently found in patients with obstructive sleep apnea. These structural alterations in the pharyngeal airway can be detected in awake patients by using rapid imaging techniques. Ten patients with clinically proved obstructive sleep apnea had ultrafast spoiled gradient-recalled acquisition in the steady state (GRASS) MR imaging of the pharyngeal airway to determine the presence of occlusions and/or narrowings. Twelve sequential images were obtained at one midsagittal plane and at eight transverse planes through the pharyngeal airway. The scans were obtained at the rate of one image per 1.04 sec while the patient was breathing quietly. Occlusions or narrowings of the pharyngeal airways were detected on MR images in all patients. The site(s) of the occlusions and the site(s) and extent of the narrowings varied. Six patients had occlusions and four had narrowings of one or more sites. This study shows that ultrafast spoiled GRASS MR imaging can be used to evaluate patients with obstructive sleep apnea during tidal breathing and is useful for determining the presence of occlusions and narrowings of the pharyngeal airway.