TY - JOUR
T1 - Doppler evaluation of the posterior cerebral artery in normally grown and growth restricted fetuses
AU - Benavides-Serralde, Jesus Andres
AU - Hernandez-Andrade, Edgar
AU - Cruz-Martinez, Rogelio
AU - Cruz-Lemini, Mónica
AU - Scheier, Matthias
AU - Figueras, Francesc
AU - Mancilla, Javier
AU - Gratacos, Eduard
PY - 2014/2
Y1 - 2014/2
N2 - Objective: To evaluate Doppler parameters of the two segments of the posterior cerebral artery (PCA) in normally grown and growth restricted (IUGR) fetuses. Methods: Normal reference values of the pulsatility index (PI), peak systolic velocity, end-diastolic velocity, and time-averaged maximum velocity from the two segments of the PCA (segment one, PCA-S1; segment two, PCA-S2) were constructed in 350 pregnant women from 20 to 40weeks of gestation. The association of the two PCA segments with the middle cerebral artery (MCA), and with the umbilical artery was evaluated in 50 IUGR fetuses. Results: In normal fetuses, Doppler parameters from PCA-S1 and PCA-S2 showed similar behavior throughout gestation. In IUGR fetuses, the PI of the two PCA segments was significantly reduced with no differences between them. PCA-S2 PI showed a higher correlation with the MCA-PI (r=0.73) than PCA-S1 PI (r=0.63; p=0.001). IUGR fetuses showed vasodilatation in the PCA earlier than in the MCA disregarding the umbilical artery-PI value. Conclusion: In IUGR fetuses, the two segments of the PCA show signs of vasodilatation earlier than the MCA. As IUGR fetuses deteriorate, the two segments of the PCA and the MCA behave similarly.
AB - Objective: To evaluate Doppler parameters of the two segments of the posterior cerebral artery (PCA) in normally grown and growth restricted (IUGR) fetuses. Methods: Normal reference values of the pulsatility index (PI), peak systolic velocity, end-diastolic velocity, and time-averaged maximum velocity from the two segments of the PCA (segment one, PCA-S1; segment two, PCA-S2) were constructed in 350 pregnant women from 20 to 40weeks of gestation. The association of the two PCA segments with the middle cerebral artery (MCA), and with the umbilical artery was evaluated in 50 IUGR fetuses. Results: In normal fetuses, Doppler parameters from PCA-S1 and PCA-S2 showed similar behavior throughout gestation. In IUGR fetuses, the PI of the two PCA segments was significantly reduced with no differences between them. PCA-S2 PI showed a higher correlation with the MCA-PI (r=0.73) than PCA-S1 PI (r=0.63; p=0.001). IUGR fetuses showed vasodilatation in the PCA earlier than in the MCA disregarding the umbilical artery-PI value. Conclusion: In IUGR fetuses, the two segments of the PCA show signs of vasodilatation earlier than the MCA. As IUGR fetuses deteriorate, the two segments of the PCA and the MCA behave similarly.
UR - http://www.scopus.com/inward/record.url?scp=84895071654&partnerID=8YFLogxK
U2 - 10.1002/pd.4265
DO - 10.1002/pd.4265
M3 - Artículo
SN - 0197-3851
VL - 34
SP - 115
EP - 120
JO - Prenatal Diagnosis
JF - Prenatal Diagnosis
IS - 2
ER -