吞咽过程中咽部的动态磁共振成像。
Dynamic magnetic resonance imaging of the pharynx during deglutition.
作者信息
Amin Milan R, Achlatis Stratos, Lazarus Cathy L, Branski Ryan C, Storey Pippa, Praminik Bidyut, Fang Yixin, Sodickson Daniel K
机构信息
New York University Voice Center, Department of Otolaryngology-Head and Neck Surgery, New York University School of Medicine, New York, NY 10016, USA.
出版信息
Ann Otol Rhinol Laryngol. 2013 Mar;122(3):145-50. doi: 10.1177/000348941312200301.
OBJECTIVES
We utilized dynamic magnetic resonance imaging to visualize the pharynx and upper esophageal segment in normal, healthy subjects.
METHODS
A 3-T scanner with a 4-channel head coil and a dual-channel neck coil was used to obtain high-speed magnetic resonance images of subjects who were swallowing liquids and pudding. Ninety sequential images were acquired with a temporal resolution of 113 ms. Imaging was performed in axial planes at the levels of the oropharynx and the pharyngoesophageal segment. The images were then analyzed for variables related to alterations in the area of the pharynx and pharyngoesophageal segment during swallowing, as well as temporal measures related to these structures.
RESULTS
All subjects tolerated the study protocol without complaint. Changes in the area of the pharyngeal wall lumen and temporal measurements were consistent within and between subjects. The inter-rater and intra-rater reliabilities for the measurement tool were excellent.
CONCLUSIONS
Dynamic magnetic resonance imaging of the swallow sequence is both feasible and reliable and may eventually complement currently used diagnostic methods, as it adds substantive information.
目的
我们利用动态磁共振成像来观察正常健康受试者的咽部和食管上段。
方法
使用一台配备4通道头部线圈和双通道颈部线圈的3-T扫描仪，对吞咽液体和布丁的受试者进行高速磁共振成像。以113毫秒的时间分辨率采集90幅连续图像。成像在口咽部和咽食管段水平的轴位平面上进行。然后分析这些图像，以获取与吞咽过程中咽部和咽食管段面积变化相关的变量，以及与这些结构相关的时间测量值。
结果
所有受试者均无抱怨地耐受了研究方案。咽壁管腔面积的变化和时间测量值在受试者内部和受试者之间是一致的。测量工具的评分者间和评分者内信度都非常好。
结论
吞咽序列的动态磁共振成像既可行又可靠，并且最终可能会补充目前使用的诊断方法，因为它能提供大量信息。
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