Quantification of the Regional Properties of Gastric Motility Using Dynamic Magnetic Resonance Images
- Resource Type
- Periodical
- Authors
- Hosseini, S.; Avci, R.; Paskaranandavadivel, N.; Suresh, V.; Cheng, L.K.
- Source
- IEEE Open Journal of Engineering in Medicine and Biology IEEE Open J. Eng. Med. Biol. Engineering in Medicine and Biology, IEEE Open Journal of. 4:38-44 2023
- Subject
- Bioengineering
Components, Circuits, Devices and Systems
Computing and Processing
Stomach
Biomedical engineering
Time-frequency analysis
Time series analysis
Matlab
Gastrointestinal tract
Magnetic resonance imaging
Contraction map
gastric motility index
magnetic resonance imaging
motion correction
- Language
- ISSN
- 2644-1276
Goal : To quantify the regional properties of gastric motility from free-breathing dynamic MRI data. Methods : 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, p