- 1、本文档共74页,可阅读全部内容。
- 2、原创力文档(book118)网站文档一经付费(服务费),不意味着购买了该文档的版权,仅供个人/单位学习、研究之用,不得用于商业用途,未经授权,严禁复制、发行、汇编、翻译或者网络传播等,侵权必究。
- 3、本站所有内容均由合作方或网友上传,本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺!文档内容仅供研究参考,付费前请自行鉴别。如您付费,意味着您自己接受本站规则且自行承担风险,本站不退款、不进行额外附加服务;查看《如何避免下载的几个坑》。如果您已付费下载过本站文档,您可以点击 这里二次下载。
- 4、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等,请点击“版权申诉”(推荐),也可以打举报电话:400-050-0827(电话支持时间:9:00-18:30)。
Part 6.Gastrointestinal Motility Gastrointestinal Motility Esophageal motility Gastroesophageal reflux Gastric emptying Intestinal motility 6.1 Esophageal motility 6.1.1 Technique The details of the imaging study vary from department to department. Technetium colloid has been most commonly used as a non-absorbable marker, although other alternatives are equally appropriate, such as 99mTc-DTPA. It is usually given in liquid form (with water) or semi-solid form. 6.1 Esophageal motility 6.1.2 Normal images It is conventional to divide the esophagus into upper, middle, and lower portions. Up to 10% of the bolus may remain normally in the lower esophagus. The remainder of the bolus of colloid should traverse the esophagus in under 15 s. Normal transit for upper, middle, and lower moieties of esophagus is 2, 4, and 6 seconds respectively. Condensed images maybe used to show the progress of activity through esophagus. The x-axis shows time and the y-axis is the spread of activity from mouth to stomach. 6.1 Esophageal motility 6.1.3 Clinical application The diagnosis of esophageal motility disorders is most commonly made with contrast radiography and esophageal manometry. 6.2 Gastroesophageal reflux 6.2.1 Clinical application Gastroduodenal reflux Normal Abnormal 6.3 Gastric emptying 6.3.1 Technique 99mTc or 111In labeled-DTPA may be combined into a meal that has liquid and solid phases. 6.3 Gastric emptying 6.3.2 Clinical application Gastroparesis can be seen as an idiopathic disorder or secondary to many conditions. The autonomic neuropathy of long-standing diabetes mellitus is the most common identifiable cause and develops in about 20%-30% of poorly controlled patients. Neither the type of diabetes nor the age of onset has been shown to predict the risk of developing diabetic gastroparesis. Rapid gastric emptying (dumping) may occur after gastric surgery as a result of altered vagal activity or in the Zollinger-Ellison syndrome as a result of acid hypersecretion
您可能关注的文档
- 3-6岁儿童学习与发展指南健康领域-培训课件.ppt
- baseproject-ACS诊断标准-培训课件.pptx
- BCR-ABL概述-培训课件.pptx
- BIPAP呼吸机的临床应用2.13-培训课件.ppt
- CFDA之医疗器械生产监管-培训课件.pptx
- CHD诊断和治疗的现代观点-培训课件.ppt
- COPD的健康教育-培训课件.pptx
- copd与营养-培训课件.ppt
- COPD诊治指南的解读-培训课件.ppt
- CRRT的护理-培训课件.ppt
- 某年政治会考复习:为人民服务的政府.pptx
- 【课件】离子反应以及其书写++课件高一上学期化学人教版(2019)必修第一册+.pptx
- 【课件】物质的转化+课件高一上学期化学人教版(2019)必修第一册.pptx
- 【课件】有机化合物的同分异构体的书写方法课件高二化学人教版(2019)选择性必修3.pptx
- 【课件】《电解池》课件高二化学人教版(2019)选择性必修1.pptx
- 【课件】金属晶体的原子堆积模型课件高二化学人教版(2019)选择性必修2.pptx
- 【课件】原子结构与元素的性质高一上学期化学人教版(2019)必修第一册.pptx
- 【课件】物质的分类及转化++第四课时高一上学期化学人教版(2019)必修第一册+.pptx
- 【课件】电离平衡课件高二上学期化学人教版(2019)选择性必修1.pptx
- 【课件】金属晶体的原子堆积模型说课课件高二化学人教版(2019)选择性必修2.pptx
文档评论(0)