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2016 | Vol. 36, no. 1 | 138--144
Tytuł artykułu

A biomechanical comparison between tissue stiffness meter and shore type 00 durometer using fresh human fetal membrane cadavers

Autorzy
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
A manual palpation is traditionally used on soft tissue stiffness evaluation in clinical practices. However, the palpation is a subjective technique, so quantitative tissue stiffness measurement would be a more reliable method on diagnosing disorders instead of a palpation in medicine. The purpose of this study was to emphasize a new medical device that was capable of measuring soft tissue stiffness. An in vitro investigation with a soft tissue stiffness meter (STSM) was presented and it is compared with a shore type 00 durometer in this study. Soft materials were needed for in vitro experiments to show feasibility of the STSM, so fetal membranes were decided to use on experiments. Five fetal membranes undergoing normal birth (NB) (35 samples, 105 measurements) and four fetal membranes undergoing pre-term birth (PRB) (20 samples, 60 measurements) were collected immediately after delivery. Samples were examined on custom designed tissue holder. Resu*lts of the STSM were in correlation with results of the durometer for NB and PRB (r2 = 0.995 and r2 = 0.996 respectively). Moreover, a tissue stiffness difference between NB and PRB was statistically significant by using STSM ( p ≤ 0.001), whereas it was not statistically significant by using durometer ( p = 0.360). In conclusion, newly produced device, STSM is more sensitive than durometer even for very small stiffness differences as between NB and PRB fetal membranes.
Wydawca

Rocznik
Strony
138--144
Opis fizyczny
Bibliogr. 17 poz., rys., tab., wykr.
Twórcy
autor
  • İzmir Katip Çelebi Üniversitesi, Mühendislik ve Mimarlık Fakültesi, Biyomedikal Mühendisliği Bölümü, Balatçık Ana Yerleşkesi, Posta Kodu 35620, Çiğli, İzmir, Turkey, hakanoflaz@gmail.com, hakan.oflaz@ikc.edu.tr
Bibliografia
  • [1] Arokoski JP, Surakka J, Ojala T, Kolari P, Jurvelin JS. Feasibility of the use of a novel soft tissue stiffness meter. Physiol Meas 2005;26(June (3)):215–28.
  • [2] Yen PL. Palpation sensitivity analysis of exploring hard objects under soft tissue, Kobe, Japan; 2003;1102–6.
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  • [7] Jabareen M, Mallik AS, Bilic G, Zisch AH, Mazza E. Relation between mechanical properties and microstructure of human fetal membranes: an attempt towards a quantitative analysis. Eur J Obstet Gynecol Reprod Biol 2009;144(May (Suppl. 1)):S134–41.
  • [8] Fischbach F, Dunning MB. A manual of laboratory and diagnostic tests. 8th ed. Lippincott Williams & Wilkins; 2008.
  • [9] Fisk NM, Ronderos-Dumit D, Tannirandorn Y, Nicolini U, Talbert D, Rodeck CH. Normal amniotic pressure throughout gestation. Br J Obstet Gynaecol 1992;99(January (1)):18–22.
  • [10] Moore RM, Mansour JM, Redline RW, Mercer BM, Moore JJ. The physiology of fetal membrane rupture: insight gained from the determination of physical properties. Placenta 2006;27(November (11–12)):1037–51.
  • [11] Oflaz H, Baran O. A new medical device to measure a stiffness of soft materials. Acta Bioeng Biomech 2014;16 (1):125–31.
  • [12] Severi FM, Bocchi C, Voltolini C, Borges LE, Florio P, Petraglia F. Thickness of fetal membranes: a possible ultrasound marker for preterm delivery. Ultrasound Obstet Gynecol 2008;32(August (2)):205–9.
  • [13] Artal R, Sokol RJ, Neuman M, Burstein AH, Stojkov J. The mechanical properties of prematurely and non-prematurely ruptured membranes. Methods and preliminary results. Am J Obstet Gynecol 1976;125(July (5)):655–9.
  • [14] Artal R, Burgeson RE, Hobel CJ, Hollister D. An in vitro model for the study of enzymatically mediated biomechanical changes in the chorioamniotic membranes. Am J Obstet Gynecol 1979;133(March (6)):656–9.
  • [15] Lavery JP, Miller CE. The viscoelastic nature of chorioamniotic membranes. Obstet Gynecol 1977;50 (October (4)):467–72.
  • [16] Lavery JP, Miller CE. Deformation and creep in the human chorioamniotic sac. Am J Obstet Gynecol 1979;134(June (4)):366–75.
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Uwagi
PL
Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.baztech-e68d97a3-2e81-417c-b7ef-6eb93860bfb7
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