کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
877080 910883 2009 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Study on gastric interdigestive pressure activity based on phase space reconstruction and FastICA algorithm
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی پزشکی
پیش نمایش صفحه اول مقاله
Study on gastric interdigestive pressure activity based on phase space reconstruction and FastICA algorithm
چکیده انگلیسی

To investigate the features of the gastric interdigestive pressure activity under normal physiological conditions, we have developed the wireless radiotelemetry capsule based on a telemetry technique. Twelve healthy volunteers participated in this study. Pressure activity data which are an important index of gastric motility can be obtained from the wireless radiotelemetry capsule. But the capsule only records single-dimensional pressure time series which may contain a few interdependent components simultaneously. Automated embedding phase space reconstruction algorithm is employed to reconstruct multi-dimensional phase space. Then the dominant and separated component of the gastric contractions is identified using FastICA algorithm. Finally the use of Hilbert Huang transform method for analyzing the characters of gastric motility is investigated. The results show that the proposed method is an effective approach for the analysis of the gastric pressure series.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Medical Engineering & Physics - Volume 31, Issue 3, April 2009, Pages 320–327
نویسندگان
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