TY - JOUR
T1 - The assessment of the fetal heart function using two-dimensional speckle tracking with a high frame rate
AU - Ohira, Akiko
AU - Hayata, Kei
AU - Mishima, Sakurako
AU - Tani, Kazumasa
AU - Maki, Jota
AU - Mitsui, Takashi
AU - Eto, Eriko
AU - Masuyama, Hisashi
N1 - Funding Information:
? This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.
PY - 2020/12
Y1 - 2020/12
N2 - Background: Two-dimensional (2D) speckle tracking echography (STE) is a new diagnostic modality that allows for the assessment of myocardial deformation. The present study assessed the feasibility of fetal 2D-STE at a high frame rate and determined the reference values for left ventricular (LV)- and right ventricular (RV)- global longitudinal strain (GLS). Methods: In this prospective study, 109 fetuses with gestational ages ranging from 18 to 38 weeks underwent 2D echocardiography between August 2018 and December 2019. All recordings were performed using the Aplio i800 (CANON Medical Systems Corporation, Tochigi, Japan) and a convex probe (4 MHz) for fetuses. Results: Longitudinal peak systolic strain measurements were obtained in 98 of 109 healthy fetuses (90%). All ultrasound videos were recorded with a median frame rate of 172 (range, 100–274) frames/s. The LV-GLS was almost constant, regardless of the number of weeks since the second trimester (r = −0.0087, p = ns). The RV-GLS decreased significantly with gestational age (r = 0.39, p < 0.01). Conclusions: STE may be useful for quantifying the systolic myocardial function in a fetus.
AB - Background: Two-dimensional (2D) speckle tracking echography (STE) is a new diagnostic modality that allows for the assessment of myocardial deformation. The present study assessed the feasibility of fetal 2D-STE at a high frame rate and determined the reference values for left ventricular (LV)- and right ventricular (RV)- global longitudinal strain (GLS). Methods: In this prospective study, 109 fetuses with gestational ages ranging from 18 to 38 weeks underwent 2D echocardiography between August 2018 and December 2019. All recordings were performed using the Aplio i800 (CANON Medical Systems Corporation, Tochigi, Japan) and a convex probe (4 MHz) for fetuses. Results: Longitudinal peak systolic strain measurements were obtained in 98 of 109 healthy fetuses (90%). All ultrasound videos were recorded with a median frame rate of 172 (range, 100–274) frames/s. The LV-GLS was almost constant, regardless of the number of weeks since the second trimester (r = −0.0087, p = ns). The RV-GLS decreased significantly with gestational age (r = 0.39, p < 0.01). Conclusions: STE may be useful for quantifying the systolic myocardial function in a fetus.
KW - 2D-STE
KW - Fetus
KW - High frame rate
KW - Strain
KW - Two-dimensional speckle tracking echography
UR - http://www.scopus.com/inward/record.url?scp=85089896500&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85089896500&partnerID=8YFLogxK
U2 - 10.1016/j.earlhumdev.2020.105160
DO - 10.1016/j.earlhumdev.2020.105160
M3 - Article
C2 - 32866674
AN - SCOPUS:85089896500
VL - 151
JO - Early Human Development
JF - Early Human Development
SN - 0378-3782
M1 - 105160
ER -