Brandon M Wong,Sterling R Wong,Cem Nesiri,Unni Udayasankar,Michael C Larson
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引用次数: 0
摘要
目的对于处于学语前至学语初期的儿童来说,异物摄入是一个日益普遍的问题。异物卡在胃肠道内可导致梗阻、穿孔和瘘管等问题。放射成像通常可以确定大多数异物的位置,但放射线无法显示的异物可能会被漏诊。超声是一种可用于定位和追踪异物通过肠道过程的替代成像方式。方法使用 GE Logiq 9 超声波机和频率为 15 MHz 的线性换能器检查放置在猪肠道中的各种摄入异物。结果成像物体的视觉外观、回声、纹理、大小和形状各不相同;声学阴影和混响伪影是特别明显的特征。结论超声评估小儿异物摄入可作为一种有用的替代或辅助成像方式,用于确认摄入物的位置和实时跟踪。这对于在传统射线照片中无法可靠观察到的不同放射性密度的异物尤其有用。
Ultrasound Imaging of Various Ingested Foreign Bodies in an Ex Vivo Intestinal Model.
OBJECTIVE
Foreign body ingestion is an increasingly prevalent issue for children who are in the preverbal to early verbal stages of life. Foreign bodies lodged in the gastrointestinal tract can cause issues such as obstruction, perforation, and fistulae. Radiographic imaging can often locate most foreign bodies; however, radiolucent objects may be missed. Ultrasound is an alternative imaging modality that can be used to locate and track foreign objects as they pass through the bowel. The objective of this study was to characterize the sonographic appearance of various ingested foreign bodies of varying characteristics in an ex vivo gastrointestinal tract segment.
METHODS
A GE Logiq 9 ultrasound machine with a linear transducer at a frequency of 15 MHz was used to examine various ingested foreign bodies placed in a segment of pig intestinal tract.
RESULTS
Imaged objects varied in visual appearance from echogenicity, texture, size, and shape; acoustic shadows and reverberation artifacts cast were particularly distinguishing characteristics.
CONCLUSIONS
Ultrasound evaluation to assess foreign body ingestion in the pediatric population may provide a useful alternative or supportive imaging modality in confirming the location and real-time tracking of the ingested item. This may be especially useful for objects of varying radiodensities that cannot always be reliably seen in traditional radiographs.
期刊介绍:
Pediatric Emergency Care®, features clinically relevant original articles with an EM perspective on the care of acutely ill or injured children and adolescents. The journal is aimed at both the pediatrician who wants to know more about treating and being compensated for minor emergency cases and the emergency physicians who must treat children or adolescents in more than one case in there.