Abstract
As Walter Cannon published his book entitled The Mechanical Factors of Digestion almost 100 years ago (Cannon, 1911), one might expect the knowledge base about gastrointestinal mechanics to be very large today. Unfortunately, this is not the case. The development in methodology has indeed been slow and unstructured. Today, basic research in gastroenterology and consequently also the diagnostics of “mechanical” diseases suffer greatly from these limitations. Multidisciplinary efforts and use of bioengineering principles are needed to overcome the limitations and to make new progress.
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Literature
The literature list contains papers mentioned in the text as well as other papers of interest.
Andersen, NT, Hobolth, A, Gregersen, H, Væth, M. 2000. Implicitly defined non-linear models of elastic properties of organs. Research Report 2000–4, August. Department of Biostatistics, University of Aarhus, Denmark.
Assentoft, JE, Gregersen, H, O’Brien, WD. 2000. Determination of biomechanical properties in the guinea pig esophagus by means of high-frequency ultrasound and impedance planimetry. Dig Dis Sci, 45,1260–66.
Assentoft, JE, Gregersen, H, O’Brien Jr., WD. 2001. Propagation speed of sound assessment in the layers of the guinea pig esophagus by means of acoustic microscopy. Ultrasonics, 39, 263–8.
Assentoft, JE, Jørgensen, CS, Gregersen, H, Christensen, LL, Djurhuus, JC, O’Brien, WD. 1996. Scanning laser acoustic microscopy as a method for characterizing the acoustic properties of the individual layers of biological tissue. IEEE Eng Med Biol Mag, 15, 42–5.
Axenborg, J. 1979. An electrical impedance method for measurement of aortic cross-sectional area. Part 1: Principles and experimental evaluation. Thesis, Gothenburg University.
Bell, AM, Pemberton, JH, Hanson, RB, Zinsmeister, AR. 1991. Variations in muscle tone of the human rectum: recordings with an electromechanical barostat. Am J Physiol, 260, G17–25.
Briggs, GAD, Wang, J, Gundle, R. 1993. Quantitative acoustic microscopy of individual living human cells. J Microsc, 172, 3–12.
Briggs, GAD. 1992. A little elementary acoustics. In: Acoustic Microscopy, pp. 78–101. Oxford: Clarendon Press.
Cannon, WB. 1911. The Mechanical Factors of Digestion. Oxford.
Chen, CT, Millero, FJ. 1977. Speed of sound in seawater at high pressures. J Acoust Soc Am, 62, 1129–35.
Chuong, CJ, Fung, YC. 1983. Three-dimensional stress distribution in arteries. J Biomech Eng, 105, 268–74.
Chuong, CI, Fung, YC. 1986. On residual stress in arteries. J Biomech Eng, 108, 189–92.
Colstrup, H, Mortensen, SO, Kristensen, JK. 1983. A new method for the investigation of the closure function of the resting female urethra. J Urol, 130, 507–11.
Colstrup, H, Mortensen, SO, Kristensen, JK. 1983. A probe for measurements of related values of cross-sectional area and pressure in the resting female urethra. Urol Res, 11, 139–43.
Colstrup, H. 1984. Rigidity of the resting female urethra. Part I. Static measurements. J Urol, 132, 78–81.
Colstrup, H. 1984. Rigidity of the resting female urethra. Part II. Dynamic measurements. J Urol, 132, 82–6.
Colstrup, H. 1985. Voluntary contractions in the female urethra. J Urol, 134, 902–6.
Dall, FH, Jørgensen, CS, Djurhuus, JC, Gregersen, H. 1991. Biomechanical wall properties of the porcine rectum. A study using impedance planimetry. Dig Dis, 9, 347–53.
Dall, FH, Jørgensen, CS, Houe, D, Gregersen, H, Djurhuus, JC. 1993. Biomechanical wall properties of the human rectum. A study with impedance planimetry. Gut, 34, 1581–6.
Deng, SX, Tomioka, J, Debes, JC, Fung, YC. 1994. New experiments on shear modulus of elasticity of arteries. Am J Physiol, 266, H1–10.
Djurhuus, JC, Constantinou, CE. 1979. Assessment of pyeloureteral function using a flow velocity and cross-sectional diameter probe. Invest Urol, 17, 103–7.
Duch, BU, Petersen, JAK, Gregersen, H. 1998. Luminal cross-sectional area and distensibility in the porcine bile duct. Neurogastroenterol Motil, 10, 203–9.
Duch, BU, Petersen, JAK, Vinter-Jensen, L, Gregersen, H. 1996. Elastic properties in the circumferential direction in isolated rat small intestine. Acta Physiol Scand, 157, 157–63.
Dunn, F, Edmonds, PD, Fry, WJ. 1969. Absorption and dispersion of ultrasound in biological media In: Biological Engineering, ed. Schwan, HP. New York: McGraw Hill.
Dunn, OJ, Clark, VA. 1987. Applied Statistics: Analysis of Variance and Regression. New York: John Wiley.
Elbrønd, H, Tøttrup, A, Forman, A. 1991. Mechanical properties of isolated smooth muscle from rabbit sphincter of oddi and duodenum. Scand J Gastroenterol, 26, 289–94.
Fass, J, Silny, J, Braun, J, Heindrichs, U, Dreuw, B, Schumpelick, V, Rau, G. 1989. Ein neues verfahren zur quantitativen bestimmung oesophagealer motilitätsmuster mittels einer vielfachen impedanzmessung. In: Chirurgiches forum 1989 f experim. u. kliniche forschung, ed. Hamelmann et al. Berlin: SpringerVerlag.
Fisher, MA, Hendrix, TR, Hunt, JN, Murrills, AJ. 1978. Relation between volume swallowed and velocity of the bolus ejected from the pharynx into the esophagus. Gastroenterology, 74, 1238–40.
Flügge, W. 1960. Stresses in Shells. Berlin: Springer-Verlag.
Frøbert, O, Bagger, JP, Gregersen, H, Storkholm, JH. 1995. Methodologies for the measurement of mechanical properties of the aorta and the coronary arteries. Surg Res Comm, 17, 181–99.
Frøbert, O, Gregersen, H, Bagger, JP. 1996. Mechanics of porcine coronary arteries ex vivo employing impedance planimetry: a new intravascular technique. Ann Biomed Eng, 24, 148–55.
Frøbert, O, Schiønning, J, Gregersen, H, Baandrup, U, Petersen, JAK, Bagger, JP. 1997. Impaired human coronary artery distensibility by atherosclerotic lesions. A mechanical and histological investigation. Int JExp Pathol, 78, 421–8.
Frøbert, O, Storkholm, JH, Gregersen, H, Bagger, JP. 1996. In vivo assessment ofluminal cross-sectional areas and circumferential tension-strain relations of the porcine aorta. Scand J Thor Cardiovasc Surg, 30, 11–19.
Frøbert, O, Mikkelsen, EO, Gregersen, H, Nyborg, NCB, Bagger, JP. 1996. Porcine coronary artery pharmacodynamics in vitro evaluated by a new intravascular technique. Relation to axial stretch. J Pharmacol Toxicol Methods, 36, 13–19.
Fung, YC, Liu, SQ, Zhou, JB. 1993. Remodeling of the constitutive equation while a blood vessel remodels itself under stress. J Biomech Eng, 115, 1670–76.
Fung, YC, Liu, SQ. 1995. Determination of the mechanical properties of the different layers of blood vessel in vivo. Proceedings of the National Academy of Sciences of the USA, 92, 2169–73.
Fung. YC. 1984. Biodvnamics. Circulation. New York: Springer-Verlag.
Fung, YC. 1990. A First Course in Continuum Mechanics. Third Edition. New Jersey: Prentice Hall.
Fung, YC. 1990. Biomechanics: Motion, Flow, Stress and Growth. New York: Springer.
Fung, YC. 1993. Biomechanics. Mechanical Properties of Living Tissues. New York: Springer-Verlag.
Goss, SA, O’Brien Jr., W.D. 1979. Direct ultrasonic velocity measurements of mammalian collagen threads. J Acoust Soc Am, 65, 507–11.
Gregersen, H, Andersen, MB. 1991. Impedance measurement system for quantification of cross-sectional area in the gastrointestinal tract. Med Biol Eng Comput, 29, 108–10.
Gregersen, H, Barlow, J, Thompson, DG. 1999. Development of a computer-controlled tensiometer tor realtime measurements of tension in tubular organs. Neurogastroenterol Motil, 11, 109–18.
Gregersen, H, Christensen, LL. 1996. Pressure-cross-sectional area relations and elasticity in the rabbit esophagus. Digestion, 57, 174–9.
Gregersen, H, Djurhuus, JC. 1991. Impedance planimetry. A new approach to biomechanical wall properties in the intestine. Dig Dis, 9, 332–40.
Gregersen, H, Giversen, IM, Rasmussen, LM, Tøttrup, A. 1992. Biomechanical wall properties and collagen content in the partially obstructed opossum esophagus. Gastroenterology, 103, 1547–51.
Gregersen, H, Giversen, IM, Rasmussen, LM, Tøttrup, A. 1992. Biomechanical wall properties and collagen content in the partially obstructed opossum esophagus. Gastroenterology, 103, 1547–51.
Gregersen, H, Jensen, LS, Djurhuus, JC. 1988. Changes in oesophageal wall biomechanics after portal vein banding and variceal sclerotherapy measured by a new technique. An experimental study in rabbits. Gut, 29, 1699–1704.
Gregersen, H, Jørgensen, CS, Dall, FH, Jensen, SL. 1992. Characteristics of spontaneous and evoked motility in the isolated perfused porcine duodenum. JApplied Physiol, 73, 9–19.
Gregersen, H, Jørgensen, CS, Dall, FH, Jensen, SL. 1992. Spontaneous and evoked motility in the isolated perfused porcine duodenum. JApplied Physiol, 73, 9–19
Gregersen, H, Jørgensen, CS, Dall, FH. 1992. Biomechanical wall properties in the isolated perfused porcine duodenum. An experimental study using impedance planimetry. J Gastrointest Motil, 4, 125–35.
Gregersen, H, Kassab, GS, Pallencoea, E, Lee, C, Chien, S, Skalak, R, Fung YC. 1997. Morphometry and strain distribution in guinea pig duodenum with reference to the zero-stress state. Am J Physiol, 273, G865–74.
Gregersen, H, Kassab, GS. 1996. Biomechanics of the gastrointestinal tract. Neurogastroenterol Motil, 8, 277–97
Gregersen, H, Knudsen, L, Eika, B, Frøkiær, J, Djurhuus, JC. 1996. Regional differences exist in elastic wall properties in the ureter. Scand J Urol Nephrol, 30, 343–8.
Gregersen, H, Knudsen, L, Eika, B, Salling Nerstrøm, L, Rasmussen, L, Jensen, LS. 1991. A time-dependent study of passive esophageal wall properties and collagen content in rabbits with esophageal varices. Dig Dis Sci, 36, 1050–56.
Gregersen, H, Kraglund, K, Djurhuus, JC. 1990. Variations in duodenal cross-sectional area during the interdigestive migrating motility complex. Am J Physiol, 259(Gastrointest Liver Physiol, 22, G26–31.
Gregersen, H, Lee, C, Chien, S, Skalak, R, Fung, YC. 1999. Strain distribution in the layered wall of the esophagus. J Biomed Eng, 121, 442–8.
Gregersen, H, Lee, TC, Chien, S, Skalak, R, Fung, YC. 1999. Strain distribution in the layered wall of the esophagus. J Biomech Eng, 121, 442–8.
Gregersen, H, Lundby, L, Overgaard, J. 2002. Early and late effects of irradiation on the morphometry and residual strain of the mouse rectum. Dig Dis Sci, 47, 1472–9.
Gregersen, H, Orvar, K, Christensen, J. 1992. Biomechanical properties of duodenal wall and duodenal tone during phase I and phase II of the MMC. Am J Physiol, 263 (Gastrointest Liver Physiol, 26), G795–801.
Gregersen, H, Orvar, K, Christensen, J. 1992. Biomechanical wall properties and tone during phase I and phase II of the MMC. Am J Physiol, 263, G795–801
Gregersen, H, Stødkilde-Jørgensen, H, Djurhuus, JC, Mortensen, SO. 1988. The four-electrode impedance technique: a method for investigation of compliance in luminal organs. Clin Phys Physiol Meas, 9 (Suppl. A), 61–4.
Gregersen, H, Vinter Jensen, L, Juhl, CO, Dajani, EZ. 1996. Impedance planimetric characterization of the distal oesophagus in the goettingen minipig. J Biomech, 29, 63–8.
Harada, T. 1985. Experimental study on measurements of compliance and cross-sectional area in the urethra through field gradient principle. Jpn J Urol, 76, 360–70.
Harris, JH, Therkelsen, EE, Zinner, NR. 1971. Electrical measurement of ureteral flow. In: Urodynamics, ed. Boyarsky, S, Tanagho, EA, Gottschalk, CW, Zimskind, PD, pp. 465–72. London: Academic Press.
Hausken, T, Ødegaard, S, Matre, K, Berstad, A. 1992. Antroduodenal motility and movements of luminal contents studied by duplex sonography. Gastroenterology, 102, 1583–90.
Jørgensen, CS, Ahrensberg, JM, Gregersen, H, Flyvberg, A. 2001. Tension-strain relations and morphometry of the rat small intestine in experimental diabetes. Dig Dis Sci, 46, 960–7.
Jørgensen, CS, Dall, FH, Jensen, SL, Gregersen, H. 1995. A new combined ultrasound-impedance planimetry measuring system for the quantification of organ wall biomechanics in vivo. J Biomech, 28, 863–7.
Jørgensen, CS, Dall, FH, Jensen, SL, Storkholm, J, Gregersen, H. 1991. Viscoelastic properties of the isolated perfused porcine duodenum. Dig Dis, 9, 401–7.
Jørgensen, CS, Gregersen, H. 1998. Scanning acoustic microscopy in biomedical research. In: Aspects of Biomedical Engineering in Denmark, ed. The Danish Society for Biomedical Engineering Society, pp. 61–9. Copenhagen.
Juhl, CO, Vinter-Jensen, L, Djurhuus, JC, Gregersen, H, Dajani, EZ. 1994. Biomechanical properties of the oesophagus damaged by endoscopic sclerotherapy An impedance planimetric study in minipigs. Scand J Gastroenterol, 29, 867–73.
Kessler, LW, Fields, SI, Dunn, F. 1974. Acoustic microscope of mammalian kidney. J Clin Ultrasound, 2, 317–2n
Kessler, LW, Korpel, A, Palermo, PR. 1972. Simultaneous acoustic and optical microscopy of biological specimens. Nature, 239, 111–12.
Knudsen, L, Gregersen, H, Eika, B, Frøkier, J. 1994. Biomechanical wall properties and collagen content in the ureter. An experimental study in pigs. Neurourol Urodyn, 13, 597–608.
Korpel, A, Kessler, LW, Palermo, PR. 1971. Acoustic microscope operating 100 MHz. Nature, 232, 110–11.
Krogh, K, Ryhammer, AM, Lundby, L, Gregersen, H, Laurberg, TS. 2001. Comparison of methods used for measurement of rectal compliance. Dis Colon Rectum, 44, 199–206.
Lose, G, Colstrup, H, Saksager, K, Kristensen, JK. 1986. A new probe for measurement of related values of cross-sectional area and pressure in a biological tube. Med Biol Eng Comput, 24, 488–92.
Lose, G, Colstrup, H, Saksager, K, Kristensen, JK. 1988. New method for static and dynamic measurement of related values of cross-sectional area and pressure in the female urethra. Neurourol Urodyn, 6, 465–76.
Lose, G, Colstrup, H. 1990. Mechanical properties of the urethra in healthy and stress-incontinent females: dynamic measurements in the resting urethra. J Urol, 144, 1258–62.
Lose, G, Colstrup, H. 1991. Pathophysiologic subdivision of genuine stress incontinence. Neurourol Urodvn, 10, 247–56.
Lose, G, Colstrup, H. 1991. Urethral pressure and power generation during coughing and voluntary contraction of the pelvic floor in healthy females. Br J Urol, 67, 573–9.
Lose, G, Schroeder, T. 1990. Pressure/cross-sectional area probe in the assessment of urethral closure function. Reproducibility of measurement. Urol Res, 18, 143–7.
Lose, G. 1990. Impact on changes in posture and bladder filling on the mechanical properties of the urethra in healthy and stress-incontinent females. Neurourol Urodyn, 9, 459–69.
Lose, G. 1991. Urethral pressure and power generation during coughing and voluntary contraction of the pelvic floor in females with genuine stress incontinence. Br J Urol, 67, 580–5.
Lundby, L, Dall, FH, Gregersen, H, Overgård, J, Laurberg, S. 1999. Distensibility of the mouse rectum. Application of impedance planimetry for studying age-related changes. Int J Colorectal Dis, 1, 34–41.
Meiss, RA. 1971. Some mechanical properties of cat intestinal muscle. Am J Physiol, 220, 2000–7.
Mortensen, SO, Djurhuus, JC, Rask-Andersen, H. 1983. A system for measurements of micturition urethral cross-sectional areas and pressures. Med Biol Eng Comput, 21, 482–8.
Mortensen, SO. 1989. Cross-sectional areas in the normal male urethra during voiding. Thesis. Mortensens Forlag, Charlottenlund, Denmark.
Orvar, KB, Gregersen, H, Christensen, J. 1993. Biomechanical characteristics of the human esophagus. Dig Dis Sci, 38, 197–205.
Pedersen, JAK, Djurhuus, C, Koff, J, Vinter-Jensen, L, Gregersen, H. 1998. Endoscopic sclerotherapy in the porcine esophagus changes the luminal cross-sectional area and wall distensibility in a dose- and timedependent way. Dig Dis Sci, 43, 521–8.
Petersen, JAK, Duch, BU, Gregersen, H. 1999. Luminal cross-sectional area and wall distensibility in the isolated porcine oesophagus in situ. Int J Surg Invest, 1, 23–8.
Pope, II CE. 1967. A dynamic test of sphincter strength: Its application to the lower esophageal sphincter. Gastroenterology, 52, 779–86.
Prescott, J. 1946. Applied Elasticity. New York: Dover Publications.
Price, JM, Patitucci, P, Fung, YC. 1977. Mechanical properties of taenia coli smooth muscle in spontaneous contraction. Am J Physiol, 233, C47–55.
Rao, SSC, Gregersen, H, Hayek, B, Summers, RV, Christensen, J. 1996. Unexplained chest pain: The hypersensitive, hyperreactive and poorly compliant esophagus. Ann Internal Med, 124, 950–8.
Rask-Andersen, H, Djurhuus, JC. 1976. Development of a probe for endoureteral investigation of peristalsis by flow velocity and cross sectional area measurement. Acta Chir Scand, 472, 59–65.
Rasmussen, OØ, Colstrup, H, Lose, G, Christiansen, J. 1990. A technique for the dynamic assessment of anal sphincter function. Int J Colorect Dis, 5, 135–41.
Rouillon, J-M, Azpiroz, F, Malagelada, J-R. 1991. Reflex changes in intestinal tone: relationship to perception. Am J Physiol, 261, G280–6.
Rouillon, J-M, Azpiroz, F, Malagelada, J-R. 1991. Sensorial and intestino-intestinal reflex pathways in the human jejunum. Gastroenterology, 101, 1606–12.
Silny, J. 1991. Intraluminal multiple electric impedance procedure for measurement of gastrointestinal motility. J Gastrointest Motil, 9, 151–62.
Storkholm, JH, Frøbert, O, Gregersen, H. 1997. Static elastic wall properties in the abdominal porcine aorta in vitro and in vivo. Eur J Endovasc Surg, 13, 31–6.
Storkholm, JH, Jørgensen, CS, Dall, FH, Jensen, SL, Gregersen, H. 1994. Differences exist in passive elastic wall properties between segments of isolated guinea pig ileum and duodenum in vitro. J Gastrointest Motil, 6, 21–7.
Storkholm, JH, Villadsen, GE, Krogh, K, Jørgensen, CS, Gregersen, H. 1997. Dimensions and mechanical properties in segments of porcine aorta determined by means of combined impedance planimetry-high-frequency ultrasound. Med Biol Eng Comput, 35, 21–6.
Storkholm, JH, Villadsen, GV, Jensen, SL, Gregersen, H. 1995. Passive elastic wall properties in the isolated guinea pig small intestine. Dig Dis Sci, 40, 976–82.
Storkholm, JH, Villadsen, GV, Jensen, SL, Gregersen, H. 1998. Mechanical properties and collagen content differ between isolated guinea pig duodenum, jejunum and distal ileum. Dig Dis Sci, 43, 2034–41.
Tanko, L, Mikkelsen, EO, Frøbert, O, Bagger, JP, Gregersen, H. 1998. A new method for combined isometric and isobaric pharmacodynamics studies on porcine coronary arteries. Clin Exp Pharmacol Physiol, 25, 919–27.
Tanko, LB, Simonsen, U, Frøbert, O, Gregersen, H, Bagger, JP, Mikkelsen, EO. 2000. Vascular reactivity to nifedipine and Ca++ in vitro. The role ofpreactivation, wall tension and geometry. Eur JPharmacol, 387, 305–14.
Tanko, LB, Simonsen, U, Matrougui, K, Gregersen, H, Frøbert, O, Bagger, JP, Mikkelsen, EO. 2001. Axial stretch modifies contractility of porcine coronary arteries by a protein kinase C-dependent mechanism. Pharmacol Toxicol, 88, 89–97.
Tervola, KMU, Foster, SG, O’Brien Jr., WD. 1985. Attenuation coefficient measurement technique at 100 MHz with the scanning laser acoustic microscope. IEEE Trans Sonics and Ultrasonics, 32, 259–65.
Tervola, KMU, Gummer, MA, Erdman Jr., JW, O’Brien Jr., WD. 1985. Ultrasound attenuation and velocities in rat liver as a function of fat concentration: A study at 100 MHz using a scanning laser acoustic microscope. J Acoust Soc Am, 77, 307–13.
Tervola, KMU, O’Brien Jr., WD. 1985. Spatial frequency domain technique: An approach for analyzing the scanning laser acoustic microscope interferogram images. IEEE Trans Sonics and Ultrasonics, 4, 544–54.
Thind, P, Colstrup, H, Lose, G, Kristensen, JK. 1991. Method for evaluation of the urethral closure mechanism in women during standardised changes of cross-sectional area. Clin Phys Physiol Meas, 12, 163–70.
Thind, P, Lose, G, Colstrup, H, Andersson, K-E. 1992. The effect of alpha-adrenoceptor stimulation and blockade on the static urethral sphincter function in healthy females. Scand J Urol Nephrol, 26, 219–25.
Thind, P, Lose, G, Colstrup, H. 1991. How to measure urethral elastance in a simple way. Urol Res, 19, 241–4.
Thind, P, Lose, G, Colstrup, H. 1992. Resistance to forced opening of the resting urethra in healthy females assessed by experimental simulation of urine ingression. Neurourol Urodyn, 11, 201–8.
Thind, P, Lose, G. 1992. Urethral stress relaxation phenomenon in healthy and stress-incontinent women. Br J Urol, 69, 75–8.
Thind, P. 1992. Stress relaxation phenomenon in the healthy female urethra. Br J Urol, 69, 71–4.
Tøttrup, A, Forman, A, Uldbjerg, N, Funch-Jensen, P, Andersson, KE. 1990. Mechanical properties of isolated human esophageal smooth muscle. Am J Physiol, 258, G338–43.
Valori, RM, Collins, SM, Daniel, EE, Reddy, SN, Shannon, S, Jury, J. 1986. Comparison of methodologies for the measurement of antroduodenal motor activity in the dog. Gastroenterology, 91, 546–53.
Valori, RM, Kumar, D, Wingate, DL. 1986. Effects of different types of stress and of “prokinetic” drugs on the control of the fasting motor complex in humans. Gastroenterology, 90, 1890–900.
Villadsen, GE, Pedersen, JAK, Vinter-Jensen, L, Juhl, CO, Gregersen, H. 1995. Impedance planimetric characterization of the normal and diseased oesophagus. Surg Res Comm, 17, 225–42.
Villadsen, GE, Storkholm, JH, Hendel, L, Vilstrup, H, Gregersen, H. 1997. Impedance planimetric characterization of esophagus in systemic sclerosis patients with severe involvement of esophagus. Dig Dis Sci, 4, 2317–26.
Villadsen, GE, Storkholm, JH, Zachariae, H, Hendel, L, Bendtsen, F, Gregersen, H. 2001. Esophageal pressure-cross-sectional area distributions and secondary peristalsis in relation to subclasification of systemic sclerosis. Neurogastroenterol Motil, 13, 199–210.
Vinter-Jensen, L, Duch, BU, Pedersen, JAK, Ryslev, A, Gregersen, H. 1996. Systemic treatment with epidermal growth factor in the rat. Biomechanical properties of the growing small intestine. RegPeptides, 61,135–42.
Vinter-Jensen, L, Juhl, CO, Eika, B, Gregersen, H, Dajani, EZ. 1995. Epidermal growth factor attenuates the sclerotherapy-induced biomechanical properties of the oesophagus: An experimental study in the Goettingen minipig. Scand J Gastroenterol, 30, 614–19.,
Vinter-Jensen, L, Juhl, CO, Gregersen, H. 1994. Regional differences in biomechanics of the oesophagus. An impedance planimetry study in pigs. J Gastrointest Motil, 6, 233–8.
Vinter-Jensen, L, Juhl, CO, Gregersen, H. 1994. Regional differences in passive elastic wall properties of the esophagus: An impedance planimetric study in pigs. Neurogastroenterol and Motility, 6, 233–8.
Yen, RT, Fung, YC, Bingham, N. 1980. Elasticity of small pulmonary arteries in the cat. J Biomech Eng, 102, 170–77
Yu, Q, Zhou, J, Fung, YC. 1993. Neutral axis location in bending and Young’s modulus of different layers of arterial wall. Am J Physiol, 265, H52–60.
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Gregersen, H. (2003). Biomechanical Methods and Analysis. In: Biomechanics of the Gastrointestinal Tract. Springer, London. https://doi.org/10.1007/978-1-4471-3742-9_4
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