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These disorders do not always involve structural abnormalities and since they cannot be diagnosed by routine procedures, electrogastrography (EGG) has been proposed as a diagnostic alternative. However, the method still has not been transferred to clinical practice due to the difficulty of identifying gastric activity because of the low-frequency interference caused by skin\u2013electrode contact potential in obtaining spatiotemporal information by simple procedures. This work attempted to robustly identify the gastric slow wave (SW) main components by applying multivariate variational mode decomposition (MVMD) to the multichannel EGG. Another aim was to obtain the 2D SW vectorgastrogram VGG<jats:sub>SW<\/jats:sub> from 4 electrodes perpendicularly arranged in a T-shape and analyse its dynamic trajectory and recurrence quantification (RQA) to assess slow wave vector movement in healthy subjects. The results revealed that MVMD can reliably identify the gastric SW, with detection rates over 91% in fasting postprandial subjects and a frequency instability of less than 5.3%, statistically increasing its amplitude and frequency after ingestion. The VGG<jats:sub>SW<\/jats:sub> dynamic trajectory showed a statistically higher predominance of vertical displacement after ingestion. RQA metrics (recurrence ratio, average length, entropy, and trapping time) showed a postprandial statistical increase, suggesting that gastric SW became more intense and coordinated with a less complex VGG<jats:sub>SW<\/jats:sub> and higher periodicity. The results support the VGG<jats:sub>SW<\/jats:sub> as a simple technique that can provide relevant information on the \u201cglobal\u201d spatial pattern of gastric slow wave propagation that could help diagnose gastric pathologies.<\/jats:p>","DOI":"10.1007\/s13246-024-01396-y","type":"journal-article","created":{"date-parts":[[2024,3,4]],"date-time":"2024-03-04T12:01:57Z","timestamp":1709553717000},"page":"663-677","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Vectorgastrogram: dynamic trajectory and recurrence quantification analysis to assess slow wave vector movement in healthy subjects"],"prefix":"10.1007","volume":"47","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9362-5055","authenticated-orcid":false,"given":"Gema","family":"Prats-Boluda","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9133-3123","authenticated-orcid":false,"given":"Jose L.","family":"Martinez-de-Juan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0050-9360","authenticated-orcid":false,"given":"Felix","family":"Nieto-del-Amor","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mar\u00eda","family":"Termenon","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cristina","family":"Var\u00f3n","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2929-181X","authenticated-orcid":false,"given":"Yiyao","family":"Ye-Lin","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2024,3,4]]},"reference":[{"issue":"1","key":"1396_CR1","doi-asserted-by":"publisher","first-page":"1","DOI":"10.1186\/s12876-018-0749-3","volume":"18","author":"M Avramidou","year":"2018","unstructured":"Avramidou M, Angst F, Angst J, Aeschlimann A, R\u00f6ssler W, Schnyder U (2018) Epidemiology of gastrointestinal symptoms in young and middle-aged Swiss adults: prevalences and comorbidities in a longitudinal population cohort over 28 years. 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