Dynamic imaging of swallowing in a seated position using open-configuration MRI
Dynamic imaging of swallowing in a seated position using open-configuration MRI
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DOI：
10.1002/jmri.20992
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发表时间：
2007-07-01
影响因子：
4.4
通讯作者：
Hata, Nobuhiko
中科院分区：
文献类型：
--
作者：
Honda, Yasutoshi;Hata, Nobuhiko
目的：评估使用开放配置MRI扫描仪进行坐位吞咽动态MRI的可行性，并将其咽壁周围运动分析能力与视频荧光造影进行比较。材料和方法：六个健康的人（四女两男，平均年龄= 31.4 +/- 7.5岁）用开放配置MRI系统使用快速扰相梯度回波（SPGR）序列进行检查。当受试者从杯中吞下口服造影剂后，在坐姿下进行动态成像。口腔颌面放射科医生测量了六个结构的运动：舌骨（HB）、喉（LX）、上口咽（UOP）、下口咽（LOP）、声带后的咽食管段（PES）和上食管（ESO）。测量的运动进行了比较，从videofluorography为基础的observation.Results报告值：开放配置MRI描绘的解剖结构相关的吞咽（唇，舌，软腭，下颌骨，咽，HB，LX，和PES），和过程中的下颌舌骨肌（MM）。这些结构的垂直和前后位移并没有显着不同的videofluorography.Conclusion测量：动态成像吞咽使用开放配置MRI提供的图像信息相比，从videofluorography。关键词：动态磁共振成像;吞咽功能;坐位;咽后壁;荧光造影。
Purpose: To assess the feasibility of dynamic MRI of swallowing in a seated position using an open-configuration MRI scanner, and to compare its capacity for motion analysis around the pharyngeal wall with that of videofluorography.Materials and Methods: Six healthy individuals (four women and two men, mean age = 31.4 +/- 7.5 years) were examined with an open-configuration MRI system using a fast spoiled gradient-recalled echo (SPGR) sequence. Dynamic imaging was performed while the subjects were in a seated position after they swallowed oral contrast medium from a cup. An oral and maxillofacial radiologist measured the motion of six structures: the hyoid bone (HB), larynx (LX), upper oropharynx (UOP), lower oropharynx (LOP), pharyngoesophageal segment (PES) behind the vocal folds, and upper esophagus (ESO). The measured motions were compared with reported values from videofluorography-based observations.Results: Open-configuration MRI depicted the anatomic structures related to swallowing (lip, tongue, soft palate, mandible, pharynx, HB, LX, and PES), and the course of the mylohyoid muscle (MM). The vertical and anteroposterior displacements of these structures did not differ significantly from those measured by videofluorography.Conclusion: Dynamic imaging of swallowing using open-configuration MRI provides image information comparable to that obtained from videofluorography. key Words: dynamic magnetic resonance imaging; swallowing function; seated position; posterior pharyngeal wall; videofluorography.