Scintigraphic test of gastric emptying and motility: preliminary results in patients with chronic gastritis View Full Text


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Article Info

DATE

1995-06

AUTHORS

T. Hausmann, W. Müller-Schauenburg, M. Göke, M. Lübeck, K. F. Gratz, P. Meier, M. Manns, H. Hundeshagen

ABSTRACT

To record gastric peristalsis using a conventional scintigraphic gastric emptying test the frame rate was increased to 1 frame per 3 s at 10, 30, and 50 min postprandially. The gastric contraction frequency was obtained from the first harmonic of a Fourier transform of a gastric region of interest (ROI) curve. The propagation of gastric contractions was better revealed from computed functional images of the phase and amplitude distribution as compared with the multiple scintigraphic images. The maximal count-rate changes per pixel were calculated as an estimate of the most prominent regional contractile activity of the gastric wall. Among 12 patients with chronic gastritis the group with more severe dyspeptic complaints (n = 6) had significantly higher count-rate changes per pixel when compared with the group with minor complaints (20.0, 21.1 and 14.2 vs 12.9, 12.0, and 10.4 counts/pixel × s at 10, 30, and 50 min, respectively; p < 0.05). The mean half-times of gastric emptying (61, SD 11 vs 54, SD 13 min) and the mean gastric contraction frequencies (2.99, SD 0.19; 3.09, SD 0.33; 3.07, SD 0.10 vs 3.15, SD 0.15; 3.17, SD 0.13; 3.23, SD 0.20 cycles/min at 10, 30, and 50 min, respectively) did not show significant differences between both groups. Our preliminary results agree with the hypothesis of the occurrence of more powerful, nonexpulsive gastric-wall contractions in patients with more severe dyspeptic complaints. Hence, additional quantification of gastric motility allowed a more detailed evaluation of gastric-motor-activity disorders that were for so long not accessible to conventional gastric-emptying tests. More... »

PAGES

248-254

References to SciGraph publications

  • 1992-09. Scintigraphic quantitation of gastrointestinal motor activity and transport: oesophagus and stomach in EUROPEAN JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING
  • 1993-03. Criteria for labelled meals for gastric emptying studies in nuclear medicine in EUROPEAN JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING
  • 1989-05. Symptomatic, radionuclide and therapeutic assessment of chronic idiopathic dyspepsia in DIGESTIVE DISEASES AND SCIENCES
  • 1979-09. Equilibrium (Gated) radionuclide ventriculography in CARDIOVASCULAR RADIOLOGY
  • 1986-08. Variability of gastric emptying measurements in man employing standardized radiolabeled meals in DIGESTIVE DISEASES AND SCIENCES
  • 1991-07. Response of the electric activity in the human stomach to water and a solid meal in MEDICAL & BIOLOGICAL ENGINEERING & COMPUTING
  • 1984-06. Influence of meal weight and caloric content on gastric emptying of meals in man in DIGESTIVE DISEASES AND SCIENCES
  • 1991-01. Biomedical signal processing (in four parts) in MEDICAL & BIOLOGICAL ENGINEERING & COMPUTING
  • 1990-12. Pyloric deformation from peptic disease in DIGESTIVE DISEASES AND SCIENCES
  • Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1007/bf00185307

    DOI

    http://dx.doi.org/10.1007/bf00185307

    DIMENSIONS

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    33 schema:description To record gastric peristalsis using a conventional scintigraphic gastric emptying test the frame rate was increased to 1 frame per 3 s at 10, 30, and 50 min postprandially. The gastric contraction frequency was obtained from the first harmonic of a Fourier transform of a gastric region of interest (ROI) curve. The propagation of gastric contractions was better revealed from computed functional images of the phase and amplitude distribution as compared with the multiple scintigraphic images. The maximal count-rate changes per pixel were calculated as an estimate of the most prominent regional contractile activity of the gastric wall. Among 12 patients with chronic gastritis the group with more severe dyspeptic complaints (n = 6) had significantly higher count-rate changes per pixel when compared with the group with minor complaints (20.0, 21.1 and 14.2 vs 12.9, 12.0, and 10.4 counts/pixel × s at 10, 30, and 50 min, respectively; p < 0.05). The mean half-times of gastric emptying (61, SD 11 vs 54, SD 13 min) and the mean gastric contraction frequencies (2.99, SD 0.19; 3.09, SD 0.33; 3.07, SD 0.10 vs 3.15, SD 0.15; 3.17, SD 0.13; 3.23, SD 0.20 cycles/min at 10, 30, and 50 min, respectively) did not show significant differences between both groups. Our preliminary results agree with the hypothesis of the occurrence of more powerful, nonexpulsive gastric-wall contractions in patients with more severe dyspeptic complaints. Hence, additional quantification of gastric motility allowed a more detailed evaluation of gastric-motor-activity disorders that were for so long not accessible to conventional gastric-emptying tests.
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