Acoustic radiation force impulse (ARFI) elastography to asses maternal and foetal structures in pregnant ewes

Contents The aim of this study was to evaluate the stiffness of foetal lungs, liver, kidneys and placentomes by acoustic radiation force impulse (ARFI) elastography in ovine and to correlate obtained findings with foetal development. Twenty‐four ewes were included, and tissue stiffness of foetal lun...

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Published in:Reproduction in domestic animals 2019-03, Vol.54 (3), p.498-505
Main Authors: Silva, Priscila D. A., Uscategui, Ricardo Andrés R., Santos, Victor J. C., Taira, Augusto R., Mariano, Renata S. G., Rodrigues, Mariana G. K., Simões, Ana Paula R., Maronezi, Marjury C., Avante, Michelle L., Monteiro, Frederico O. B., Vicente, Wilter R. R., Feliciano, Marcus A. R.
Format: Article
Language:English
Subjects:
Elasticity
elastography
Feasibility studies
foetal development
Gestation
Kidneys
Liver
Lungs
ovine
pregnancy
Qualitative analysis
Radiation
S waves
Stiffness
Tissues
ultrasonography
Wave velocity
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Summary:Contents The aim of this study was to evaluate the stiffness of foetal lungs, liver, kidneys and placentomes by acoustic radiation force impulse (ARFI) elastography in ovine and to correlate obtained findings with foetal development. Twenty‐four ewes were included, and tissue stiffness of foetal lung, liver, kidney and placentome was measured beginning with 10th gestational week by qualitative–quantitative ARFI elastography. A total of 33 healthy lambs were born. Qualitative elastographic analysis permitted to classify maternal and foetal tissues elasticity in decreasing order as follows: placentome, kidney, liver and lung. Regarding quantitative ARFI elastography data, shear wave velocity (SWV) of foetal lung and liver varied. The lung SWV decreased gradually from the 16th to the 21st gestational week (R2 = 0.80; p 
ISSN:0936-6768
1439-0531
DOI:10.1111/rda.13384