| Colonic pressure data processing based on independent component analysis. | |
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MedLine Citation:
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PMID: 20836747 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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The Colonic manometry is an important technique to evaluate human colonic motor functions, which are critical for doctors to understand the pathology of intestinal diseases like slow transit constipation (STC) and colonic inertia (CI). However, in the obtained pressure signals, several patterns of colonic motor activities as well as noises mixed together, which made it difficult to observe the information people really needed. In this article, a new method was proposed to extract patterns of colonic motility from the mixed signals, so that researchers could study them thoroughly. Colonic pressure recordings from 26 volunteers were obtained by the water-perfused manometry catheters. Then independent component analysis (ICA) was introduced, which successfully separated colonic motility patterns and noises into four independent components. And according to the rhythm of contractions examined by ICA, subjects' colonic motility could be divided into three types: regular rhythm (12 subjects), slow rhythm (8 subjects) and disordered (6 subjects), which exactly accorded with their original diagnosis. |
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Authors:
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C Pan; S P Tian; G Z Yan; K D Wang |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2010-09-14 |
Journal Detail:
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Title: Journal of medical engineering & technology Volume: 35 ISSN: 1464-522X ISO Abbreviation: J Med Eng Technol Publication Date: 2010 Oct-Nov |
Date Detail:
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Created Date: 2010-10-18 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7702125 Medline TA: J Med Eng Technol Country: England |
Other Details:
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Languages: eng Pagination: 415-21 Citation Subset: IM |
Affiliation:
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Department of Information Measurement Technology and Instruments, Shanghai Jiao Tong University, Shanghai 200240, China. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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