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This study aimed to validate body surface colonic mapping (BSCM) through direct correlation with HRCM. Synchronous meal-test recordings were performed in asymptomatic participants with intact colons. A signal processing method for BSCM was developed to detect CMPs. Quantitative temporal analysis was performed comparing the meal responses and motility indices (MI). Spatial heat maps were also compared. Post-study questionnaires evaluated participants\u2019 preference and comfort\/distress experienced from either test. 11 participants were recruited and 7 had successful synchronous recordings (5 females\/2 males; median age: 50\u00a0years [range 38\u201363]). The best-correlating MI temporal analyses achieved a high degree of agreement (median Pearson correlation coefficient (Rp) value: 0.69; range 0.47\u20130.77). HRCM and BSCM meal response start and end times (Rp\u2009=\u20090.998 and 0.83; both p\u2009&lt;\u20090.05) and durations (Rp\u2009=\u20090.85; p\u2009=\u20090.03) were similar. Heat maps demonstrated good spatial agreement. BSCM is the first non-invasive method to be validated by demonstrating a direct spatio-temporal correlation to manometry in evaluating colonic motility.<\/jats:p>","DOI":"10.1038\/s41598-024-54429-7","type":"journal-article","created":{"date-parts":[[2024,2,28]],"date-time":"2024-02-28T07:02:46Z","timestamp":1709103766000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Validation of body surface colonic mapping (BSCM) against high resolution colonic manometry for evaluation of colonic motility"],"prefix":"10.1038","volume":"14","author":[{"given":"Sean H. 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