Biomaterial Database

Assessment of gastric motor function during the emptying of solid and liquid meals in humans by MRI. 1999

P Kunz, and C Feinle, and W Schwizer, and M Fried, and P Boesiger

Institute of Biomedical Engineering and Medical Informatics, University and ETH Zurich, Switzerland.

Gastric emptying and motility have previously been assessed by magnetic resonance imaging (MRI) using liquid test meals. The aim of this study was to extend the applicability of our MRI method to the assessment of gastric emptying and motility of solid meals. Gastric emptying and motility of a liquid and a solid meal, of similar chemical properties, were studied in eight volunteers. The MRI protocol combined a multislice turbo spin-echo (TSE) sequence (volume scan, resolution: 1.5 mm) and a dynamic FFE sequence (motility scan, 1 sec/image, resolution: 3.1 mm). Gastric emptying of the liquid meal was faster than emptying of the solid meal when considering half-times of emptying. However, during the first 15 minutes after ingestion, the liquid meal emptied more slowly. This was related to reduced motility with the liquid meal. In conclusion, with our MRI method it is feasible to assess gastric emptying and motility of liquid and solid meals.

UI	MeSH Term	Description	Entries
D008279	Magnetic Resonance Imaging	Non-invasive method of demonstrating internal anatomy based on the principle that atomic nuclei in a strong magnetic field absorb pulses of radiofrequency energy and emit them as radiowaves which can be reconstructed into computerized images. The concept includes proton spin tomographic techniques.	Chemical Shift Imaging,MR Tomography,MRI Scans,MRI, Functional,Magnetic Resonance Image,Magnetic Resonance Imaging, Functional,Magnetization Transfer Contrast Imaging,NMR Imaging,NMR Tomography,Tomography, NMR,Tomography, Proton Spin,fMRI,Functional Magnetic Resonance Imaging,Imaging, Chemical Shift,Proton Spin Tomography,Spin Echo Imaging,Steady-State Free Precession MRI,Tomography, MR,Zeugmatography,Chemical Shift Imagings,Echo Imaging, Spin,Echo Imagings, Spin,Functional MRI,Functional MRIs,Image, Magnetic Resonance,Imaging, Magnetic Resonance,Imaging, NMR,Imaging, Spin Echo,Imagings, Chemical Shift,Imagings, Spin Echo,MRI Scan,MRIs, Functional,Magnetic Resonance Images,Resonance Image, Magnetic,Scan, MRI,Scans, MRI,Shift Imaging, Chemical,Shift Imagings, Chemical,Spin Echo Imagings,Steady State Free Precession MRI
D008297	Male		Males
D009942	Organometallic Compounds	A class of compounds of the type R-M, where a C atom is joined directly to any other element except H, C, N, O, F, Cl, Br, I, or At. (Grant & Hackh's Chemical Dictionary, 5th ed)	Metallo-Organic Compound,Metallo-Organic Compounds,Metalloorganic Compound,Organometallic Compound,Metalloorganic Compounds,Compound, Metallo-Organic,Compound, Metalloorganic,Compound, Organometallic,Compounds, Metallo-Organic,Compounds, Metalloorganic,Compounds, Organometallic,Metallo Organic Compound,Metallo Organic Compounds
D003287	Contrast Media	Substances used to allow enhanced visualization of tissues.	Radiopaque Media,Contrast Agent,Contrast Agents,Contrast Material,Contrast Materials,Radiocontrast Agent,Radiocontrast Agents,Radiocontrast Media,Agent, Contrast,Agent, Radiocontrast,Agents, Contrast,Agents, Radiocontrast,Material, Contrast,Materials, Contrast,Media, Contrast,Media, Radiocontrast,Media, Radiopaque
D005260	Female		Females
D005502	Food	Substances taken in by the body to provide nourishment.	Foods
D005682	Gadolinium	An element of the rare earth family of metals. It has the atomic symbol Gd, atomic number 64, and atomic weight 157.25. Its oxide is used in the control rods of some nuclear reactors.
D005746	Gastric Emptying	The evacuation of food from the stomach into the duodenum.	Emptying, Gastric,Emptyings, Gastric,Gastric Emptyings
D005769	Gastrointestinal Motility	The motor activity of the GASTROINTESTINAL TRACT.	Intestinal Motility,Gastrointestinal Motilities,Intestinal Motilities,Motilities, Gastrointestinal,Motilities, Intestinal,Motility, Gastrointestinal,Motility, Intestinal
D006571	Heterocyclic Compounds	Cyclic compounds that include atoms other than carbon in their ring structure.	Heterocyclic Compound,Compound, Heterocyclic,Compounds, Heterocyclic