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Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy

Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy

This lesson explores three gastrointestinal imaging techniques: radionuclide testing, colonic transit studies, and virtual colonoscopy.
Radionuclide Testing
Radionuclide testing is a sophisticated medical technique for assessing gastrointestinal motility. It focuses on gastric emptying and colonic transit time. Radioactive markers track the movement of food through the digestive system, providing insights into gastrointestinal disorders.
In gastric emptying studies, a meal's liquid and...

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Updated: Mar 14, 2026

Bioinspired Soft Robot with Incorporated Microelectrodes

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Published on: February 28, 2020

一个软机器人仿生基板模型用于食道运动模拟.

Seán Kilroy^1,2, Neelesh A Patankar³, Walter W Chan²

¹School of Mechanical & Materials Engineering, UCD Centre for Biomedical Engineering, UCD Conway Institute, University College Dublin, Dublin, Ireland.

Nature communications

|March 13, 2026

概括

一个新的软机器人模型RoboGullet+准确模拟食道运动和吞功能障碍. 这种先进的工具有助于理解阿喀拉西亚,并优化患者的饮食建议.

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Last Updated: Mar 14, 2026

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科学领域:

生物医学工程生物医学工程
胃肠病学胃肠病学
机器人技术机器人技术机器人技术

背景情况:

目前的大型动物和台面模型不充分代表食道环境,不能模拟吞功能障碍 (食道障碍).
局限性阻碍了理解食道运动障碍的进展,如头症和制定基于证据的饮食建议.

研究的目的:

开发和验证RoboGullet+,一个生物模拟软机器人平台,能够模拟正常和患病的食道运动.
评估该平台在评估支架迁移,模拟阿喀拉西亚亚型和分析玻尿酸吞方面的实用性.

主要方法:

开发了RoboGullet,这是一款软机器人模型,具有独立的纵向和周围肌肉启动.
改进了RoboGullet+,结合了猪食道粘膜/下粘膜,以实现生物混合现实主义.
应用测试用于支架迁移,阿喀拉西亚模拟 (I-III类型) 和玻尿酸过境分析.

主要成果:

与周围肌肉运动相比,纵向肌肉运动的支架迁移增加了五倍以上.
粘性非牛顿玻尿酸改善了Achalasia III的高分辨率测量灵敏度,通过增加20.83%的远距离延迟.
与未的酸奶相比,起的希腊式酸奶显著改善了阿喀拉西亚I-II型患者的玻尿酸过渡.

结论:

RoboGullet+提供了食道功能和功能障碍的多功能和现实的模拟.
该平台促进对食道运动障碍和治疗干预的理解.
研究结果支持使用特定的玻尿酸性质和饮食修改来治疗阿喀拉西亚.