Methods of examination of the motor function of the gastrointestinal tract (GIT) are of significant diagnostic importance in patients with alimentary system diseases. However, these methods have not yet gained wide recognition because of short supply of high-sensitivity diagnostic devices and difficult interpretation of the results of examination. The last condition can be observed only with accumulation of a sufficient amount of data, skill, and experience.Methods of examination of motor function of GIT are developed most extensively in surgery, because objective evaluation of this parameter provides valuable information for selecting adequate tactics of surgery and monitoring its efficiency.The method of manometry (simultaneous measurement of pressure in various lumen segments of stomach and duodenum) has been practiced at the Hospital Surgery Clinics No. 2, Russian State Medical University since 1968. A classification of ulcerous piloroduodenal stenoses (PDS) was proposed on the basis of significant clinical experience, results of endoscopic examinations, and motor functions of the GIT [1]. According to this classification, there are four stages of PDS development: formation, compensation, subcompensation, and decompensation. Although the manometric method is used in diagnostic examinations of patients, there are serious problems in the interpretation of its results because manual processing of GIT images in patients with PDS is rather ambiguous. Therefore, automation of manometric measurements is an urgent problem.Currently available automatic systems of computer-assisted record and analysis of intracavitary pressure provide only offline data processing with manual rejection of artifacts [2]. In recent years there have been individual reports on the on-line systems of data processing with automatic rejection of artifacts by preset identification characters [3]. However, no automatic systems for comprehensive evaluation of motor functions of the GIT and computer-assisted diagnosis are presently available.The first model of automated diagnostic system for evaluating the motor functions of the GIT and PDS by the method of intracavitary multichannel manometry was developed at the
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