2006
DOI: 10.1007/s10620-005-9015-y
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Abstract: Methods based on cross-sectional ultrasound imaging may be valuable for assessment of biomechanical parameters in the duodenum in health and disease. In 12 healthy volunteers a specially designed duodenal bag containing a high-frequency ultrasound probe was inflated until the perception of moderate pain. The ultrasound images and bag pressures were recorded before and after administration of butylscopolamine. The duodenum approached a circular shape as the load was increased (P = 0.01). The tension-strain rela… Show more

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Cited by 26 publications
(7 citation statements)
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References 18 publications
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“…In the former, lumen expansion is opposed by forces that are uniformly distributed around the wall, i.e. hoop stress, while in the latter it is opposed by non‐uniform forces, tension being higher in parts of the wall with low curvature and lower in parts with high curvature . Thus, the degree of resting tone may vary between segments and at different points on the circumference of the intestine.…”
Section: Mechanical Considerationsmentioning
confidence: 99%
“…Each technique has its advantages; however, shortcomings count poor reliability, lack of standardization, limited temporal resolution, difficulties interpreting data, and radiation exposure. Furthermore, other methods like ultrasound of the small bowel and impedance planimetry exist, but are not widely used and will not be addressed in this review . No gold standard or “true motility measure” to validate methods for assessment of gut motility against, exists.…”
Section: Introductionmentioning
confidence: 99%
“…Furthermore, other methods like ultrasound of the small bowel and impedance planimetry exist, but are not widely used and will not be addressed in this review. 4,5 No gold standard or "true motility measure" to validate methods for assessment of gut motility against, exists. Furthermore, no current standardized tool is able to-concurrently-assess transit times and distinguish between motility abnormalities in the various parts of the GI tract.…”
mentioning
confidence: 99%
“…Many ex vivo layer-specific studies have been performed previously while keeping the multi-layer tissue intact. The esophagus [35]–[37] intestines [38], [39], skin [17], [40], [41] and stomach [42], [43] have been tested in detail. However, excising small segments of the organ for inflation, uniaxial or biaxial testing imparts an unknown degree of tissue damage and is still unrepresentative of the in situ state of the organ.…”
Section: Introductionmentioning
confidence: 99%
“…The main disadvantage of scintigraphy is the use of radioactive substances, which may cause negative health effects. Ultrasound produces images of the geometrical shapes of organs and helps assess the motion activity of the GI tract [ 15 , 16 ]. The experimental methods of electrogastrography and magnetogastrography are used to assess the motor function by registering the characteristics of electromagnetic fields around the organs of the digestive tract [ 17 ].…”
Section: Introductionmentioning
confidence: 99%