Assessment of fetal lung development by quantitative ultrasonic tissue characterization: a methodical study

Prenatal Diagnosis
Ismail TekesinStephan Schmidt

Abstract

This study was performed to evaluate the quantitative ultrasonic tissue characterization of the normal fetal lung development by using acoustic raw data captured after preprocessing. One hundred and sixty-two patients with completed gestational ages between 22 and 37 weeks were enrolled in this study. Longitudinal and transverse sections of the fetal thorax and upper abdomen were imaged. A region of interest of constant size was defined and the tissue-specific gray scale was determined by using an interactive software. A total of 162 patients met the inclusion criteria. The echogenicity of the fetal lung showed a particular changing pattern during pregnancy: the mean gray value of the fetal lung (MGV) is almost the same as the MGV of the fetal liver at 22 and 23 weeks, decreases between 22 and 31 weeks and increases between 31 and 37 weeks. The MGV of the fetal liver decreases significantly from 24 weeks to 31 weeks and increases significantly again toward 37 weeks. We stated that the MGV of the lung is smaller than the MGV of the liver during 31 weeks of gestation and the relation reverses in late gestation. At term, the MGV of the liver is greater than the MGV of the lung. The lung-to-liver ratio is <1 between 24 and 29 weeks...Continue Reading

Citations

Jun 18, 2010·Archives of Gynecology and Obstetrics·Chih-Yen ChenSzu-Yuan Chou
Oct 19, 2010·Ultrasound in Medicine & Biology·Mariko Serizawa, Kazuo Maeda
Oct 23, 2015·Journal of Perinatology : Official Journal of the California Perinatal Association·G A F A MoetyN M El Rifai
Aug 24, 2012·Ultrasound in Obstetrics & Gynecology : the Official Journal of the International Society of Ultrasound in Obstetrics and Gynecology·S GuerrieroL Saba
Jun 13, 2014·Ultrasound in Obstetrics & Gynecology : the Official Journal of the International Society of Ultrasound in Obstetrics and Gynecology·Elisenda Bonet-CarneE Gratacos
Apr 27, 2010·American Journal of Obstetrics and Gynecology·Humberto AzpuruaStephen F Thung
Nov 24, 2012·American Journal of Obstetrics and Gynecology·Montse PalacioEduard Gratacós
Dec 4, 2014·International Journal of Gynaecology and Obstetrics : the Official Organ of the International Federation of Gynaecology and Obstetrics·Mohamed LabanSahar S EzzElarab
Mar 25, 2017·Journal of Ultrasound in Medicine : Official Journal of the American Institute of Ultrasound in Medicine·Sleiman R GhorayebMartin L Lesser
Mar 28, 2017·American Journal of Obstetrics and Gynecology·Montse PalacioUNKNOWN Fetal Lung Texture Team
Nov 26, 2005·Ultrasound in Obstetrics & Gynecology : the Official Journal of the International Society of Ultrasound in Obstetrics and Gynecology·I TekesinS Schmidt
Jul 18, 2008·Prenatal Diagnosis·Harm-Gerd K Blaas, Sturla H Eik-Nes
Sep 1, 2020·Journal of Ultrasound in Medicine : Official Journal of the American Institute of Ultrasound in Medicine·Matthew J BlitzLuis A Bracero
Apr 7, 2020·Ultrasound in Obstetrics & Gynecology : the Official Journal of the International Society of Ultrasound in Obstetrics and Gynecology·Yanran DuYuanyuan Wang
Apr 14, 2005·Prenatal Diagnosis

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