IEEE Open Journal of Engineering in Medicine and Biology · 2023 · 10 citations · 32 references
MedicinePhysiologyRadiologyBiomedical ImagingDiagnostic ImagingGastroenterologyGastrointestinal ImagingGastrointestinal MotilityGastrointestinal PathophysiologyGastrointestinal PhysiologyGastrointestinal RadiologyMagnetic Resonance ImagingAbdominal Magnetic Resonance ImagingCurvatureGastric AnatomyGastric MorphologyGastrointestinal Motility ImagingRegional Anatomy Of The Gastrointestinal TractSegmental ContractionStomach Anatomy
Goal: To quantify the regional properties of gastric motility from free-breathing dynamic MRI dataMethods: Free-breathing MRI scans were performed on 10 healthy human subjects. Motion correction was applied to reduce the respiratory effect. A stomach centerline was automatically generated and used as a reference axis. Contractions were quantified and visualized as spatio-temporal contraction maps. Gastric motility properties were reported separately for the lesser and greater curvatures in the proximal and distal regions of the stomach.Results: Motility properties varied in different regions of the stomach. The mean contraction frequencies for the lesser and greater curvatures were both 3.1±0.4 cycles per minute. The contraction speed was significantly higher on the greater curvature than the lesser curvature (3.5±0.7 vs 2.5±0.4 mm/s, p2/s) compared to the other regions of the stomach (11.16–14.12 mm2/s).Conclusions: The results showed the effectiveness of the proposed method for visualization and quantification of motility patterns from MRI data.
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Thomas L. Abell, Michael Camilleri, K. J. Donohoe et al. · Journal of Nuclear Medicine Technology · 2008 · 442 citations · Full text
Identification of sub-groups of functional gastrointestinal disorders
D A Drossman, W.G. Thompson, NJ Talley et al. · 1990 · 431 citations