Comparison of the T2-star Values of Placentas Obtained from Pre- eclamptic Patients with Those of a Control Group: an Ex-vivo Magnetic Resonance Imaging Study

Comparison of the T2-star Values of Placentas Obtained from Pre- eclamptic Patients with Those of a Control Group: an Ex-vivo Magnetic Resonance Imaging Study

Background: Endotel dysfunction, vasoconstriction, and oxidative stress are described in the pathophysiology of pre-eclampsia, but its aetiology has not been revealed clearly. Aims: To examine whether there is a difference between the placentas of pre-eclamptic pregnant women and those of a control group in terms of their T2 star values. Study Design: Case-control study. Methods: Twenty patients diagnosed with pre-eclampsia and 22 healthy controls were included in this study. The placentas obtained after births performed via Caesarean section were taken into the magnetic resonance imaging area in plastic bags within the first postnatal hour, and imaging was performed via modified DIXON-Quant sequence. Average values were obtained by performing T2 star measurements from four localisations on the placentas. Results: T2 star values measured in the placentas of the control group were found to be significantly lower than those in the pre-eclampsia group (p

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  • 1. Roberts JM, Taylor RN, Musci TJ, Rodgers GM, Hubel CA, McLaughlin MK. Preeclampsia: an endothelial cell disorder. Am J Obstet Gynecol 1989;161:1200-4.
  • 2. Lam C, Lim KH, Karumanchi SA. Circulating angiogenic factors in the pathogenesis and prediction of preeclampsia. Hypertension 2005;46:1077- 85.
  • 3. Andrews NC. Disorders of iron metabolism. N Engl J Med 1999;341:1986- 95.
  • 4. Alústiza JM, Artetxe J, Castiella A, Agirre C, Emparanza JI, Otazua P, et al. MR quantification of hepatic iron concentration. Radiology 2004;230:479- 84.
  • 5. Gomori JM, Horev G, Tamary H, Zandback J, Kornreich L, Zaizov R, et al. Hepatic iron overload: quantitative MR imaging. Radiology 1991;179:367- 9.
  • 6. Westphalen AC, Qayyum A, Yeh BM, Merriman RB, Lee JA, Lamba A, et al. Liver fat: effect of hepatic iron deposition on evaluation with opposedphase MR imaging. Radiology 2007;242:450-5.
  • 7. Li TQ, Aisen AM, Hindmarsh T. Assessment of hepatic iron content using magnetic resonance imaging. Acta Radiol 2004;45:119-29.
  • 8. ACOG Committee on Practice Bulletins Obstetrics. ACOG practice bulletin. Diagnosis and management of preeclampsia and eclampsia. Number 33, January 2002. Obstet Gynecol 2002;99:159-67.
  • 9. Chappell LC, Enye S, Seed P, Briley AL, Poston L, Shennan AH. Adverse perinatal outcomes and risk factors for preeclampsia in women with chronic hypertension: a prospective study. Hypertension 2008;51:1002-9.
  • 10. No authors listed. National High Blood Pressure Education Program Working Group Report on High Blood Pressure in Pregnancy. Am J Obstet Gynecol 1990;163:1691-712.
  • 11. Turgal M, Beksac MS. Pathophysiology of Preeclampsia. Turkiye Klinikleri J Gynecol Obst-Special Topics 2012;5:13-6.
  • 12. Brown MA, Wang J, Whitworth JA. The renin-angiotensin-aldosterone system in pre-eclampsia. Clin Exp Hypertens 1997;19:713-26.
  • 13. Matsubara K, Higaki T, Matsubara Y, Nawa A. Nitric oxide and reactive oxygen species in the pathogenesis of preeclampsia. Int J Mol Sci 2015;16:4600-14.
  • 14. Wood JC, Ghugre N. Magnetic resonance imaging assessment of excess iron in thalassemia, sickle cell disease and other iron overload diseases. Hemoglobin 2008;32:85-96.
  • 15. İdilman İS, Akata D, Özmen MN, Karçaaltıncaba M. Different forms of iron accumulation in the liver on MRI. Diagn Interv Radiol 2016;22:22-8.
  • 16. Anderson LJ, Holden S, Davis B, Prescott E, Charrier CC, Bunce NH, et al. Cardiovascular T2-star (T2*) MR for the early diagnosis of myocardial iron overload. Eur Heart J 2001;22:2171-9.
  • 17. Bonkovsky HL, Rubin RB, Cable EE, Davidoff A, Rijcken TH, Stark DD. Hepatic iron concentration: noninvasive estimation by means of MR imaging techniques. Radiology 1999;212:227-34.
  • 18. Gandon Y, Guyader D, Heautot JF, Reda MI, Yaouanq J, Buhé T, et al. Hemochromatosis: diagnosis and quantification of liver iron with gradientecho MR imaging. Radiology 1994;193:533-8.
  • 19. Alexopoulou E, Stripeli F, Baras P, Seimenis I, Kattamis A, Ladis V, et al. R2 relaxometry with MRI for the quantification of tissue iron overload in beta-thalassemic patients. J Magn Reson Imaging 2006;23:163-70.
  • 20. Westwood M, Anderson LJ, Firmin DN, Gatehouse PD, Charrier CC, Wonke B, et al. A single breath-hold multiecho T2* cardiovascular magnetic resonance technique for diagnosis of myocardial iron overload. J Magn Reson Imaging 2003;18:33-9.
  • 21. Berglund J, Ahlström H, Johansson L, Kullberg J. Two-point dixon method with flexible echo times, Magn Reson Med 2011;65:994-1004.
  • 22. Eggers H, Brendel B, Duijndam A, Herigault G. Dual-echo Dixon imaging with flexible choice of echo times. Magn Reson Med 2011;65:96-107.
  • 23. DixonWT. Simple proton spectroscopic imaging.Radiology 1984;153:189- 94.
  • 24. Kukuk GM, Hittatiya K, Sprinkart AM, Eggers H, Gieseke J, Block W, et al. Comparison between modified Dixon MRI techniques, MR spectroscopic relaxometry, and different histologic quantification methods in the assessment of hepatic steatosis. Eur Radiol 2015;25:2869-79.
  • 25. Yu H, Shimakawa A, McKenzie CA, Brodsky E, Brittain JH, Reeder SB. Multiecho water-fat separation and simultaneous R2* estimation with multifrequency fat spectrum modeling. Magn Reson Med 2008;60:1122- 34.
  • 26. Kadoya M, Matsui O, Kitagawa K, Kawamori Y, Yoshikawa J, Gabata T, et al. Segmental iron deposition in the liver due to decreased intrahepatic portal perfusion: findings at MR imaging. Radiology 1994;193:671-6.
  • 27. Austdal M, Thomsen LC, Tangerås LH, Skei B, Mathew S, Bjørge L, et al. Metabolic profiles of placenta in preeclampsia using HR-MAS MRS metabolomics. Placenta 2015;36:1455-62.
  • 28. Huen I, Morris DM, Wright C, Parker GJ, Sibley CP, Johnstone ED, et al. R1 and R2* changes in the human placenta in response to maternal oxygen challenge. Magn Reson Med 2013;70:1427-33.
Balkan Medical Journal-Cover
  • ISSN: 2146-3123
  • Başlangıç: 2015
  • Yayıncı: Erkan Mor
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