Résumé
This paper introduces a 4-electrode gastric-emptying measurement system using an electrical bio-impedance method by which gastric-emptying experiments of 24 healthy volunteers have been carried out. The test results show that the base impedance is stable, the average GET/2 is 8.78 +/- 1.76 min. The new system provides a new non-invasive measurement method for the clinical study on gastric-emptying functions.
Sujets)
Humains , Consommation alimentaire , Physiologie , Impédance électrique , Vidange gastrique , PhysiologieRésumé
Electrical impedance tomography (EIT) is a novel imaging technology for medical measurements and monitoring. The application technique research of EIT in China may be facing some problems which include electrode performance and evaluation methods, data acquisition and image enhancing, image reconstruction algorithm, characteristic information recognizing and so on. Therefore, some suggestions have also been put forward in the paper to help the designing of a practical EIT system.