TY - JOUR
T1 - Diagnostic accuracy of ultrasound in predicting birth-weight discordance in twin pregnancy: systematic review and meta-analysis
AU - Leombroni, M.
AU - Liberati, M.
AU - Fanfani, Francesco
AU - Pagani, Gabriella
AU - Familiari, Alessandra
AU - Buca, D.
AU - Manzoli, L.
AU - Scambia, G.
AU - Rizzo, G.
AU - D'Antonio, F.
PY - 2017
Y1 - 2017
N2 - Objective: To investigate the diagnostic performance of ultrasound in predicting birth-weight (BW) discordance in twin pregnancy. Methods: Electronic databases PubMed, EMBASE and CINAHL were searched using combinations of MeSH terms â birth weightâ , â discordanceâ , â twinsâ and â ultrasoundâ . Summary estimates of sensitivity, specificity, positive and negative likelihood ratios and diagnostic odds ratios for the predictive accuracy of sonographically estimated fetal-weight (EFW) discordance and abdominal-circumference (AC) discordance in predicting BW discordance were computed using hierarchical summary receiverâ operating characteristics curves. Results: Twenty studies (including 5826 twin pregnancies) were included. EFW discordance â ¥ 20% had a sensitivity of 65.4% and specificity of 90.8% in predicting BW discordance â ¥ 20%. The predictive performance of ultrasound performed within 1 month, 2 weeks and 3 days before birth was 61.4%, 72.3% and 78.9%, respectively. EFW discordance â ¥ 25% had a sensitivity of 57.7% and specificity of 95.2% in predicting BW discordance â ¥ 25%. The sensitivity of EFW discordance â ¥ 25% detected within 1 month, 2 weeks and 3 days before birth was 60.0%, 75.0% and 60.3%, respectively, while the corresponding values for specificity were 97.7%, 96.2% and 87.3%, respectively. In view of the different cut-offs reported among studies, it was not possible to perform comprehensive data synthesis for each AC discordance cut-off. The optimal diagnostic performance of AC discordance was for prediction of BW discordance â ¥ 25%, with a sensitivity of 70.8% and specificity of 86.4%. Conclusion: Ultrasound EFW discordance has an overall moderate accuracy in predicting BW discordance in twin pregnancy. Copyright © 2016 ISUOG. Published by John Wiley & Sons Ltd.
AB - Objective: To investigate the diagnostic performance of ultrasound in predicting birth-weight (BW) discordance in twin pregnancy. Methods: Electronic databases PubMed, EMBASE and CINAHL were searched using combinations of MeSH terms â birth weightâ , â discordanceâ , â twinsâ and â ultrasoundâ . Summary estimates of sensitivity, specificity, positive and negative likelihood ratios and diagnostic odds ratios for the predictive accuracy of sonographically estimated fetal-weight (EFW) discordance and abdominal-circumference (AC) discordance in predicting BW discordance were computed using hierarchical summary receiverâ operating characteristics curves. Results: Twenty studies (including 5826 twin pregnancies) were included. EFW discordance â ¥ 20% had a sensitivity of 65.4% and specificity of 90.8% in predicting BW discordance â ¥ 20%. The predictive performance of ultrasound performed within 1 month, 2 weeks and 3 days before birth was 61.4%, 72.3% and 78.9%, respectively. EFW discordance â ¥ 25% had a sensitivity of 57.7% and specificity of 95.2% in predicting BW discordance â ¥ 25%. The sensitivity of EFW discordance â ¥ 25% detected within 1 month, 2 weeks and 3 days before birth was 60.0%, 75.0% and 60.3%, respectively, while the corresponding values for specificity were 97.7%, 96.2% and 87.3%, respectively. In view of the different cut-offs reported among studies, it was not possible to perform comprehensive data synthesis for each AC discordance cut-off. The optimal diagnostic performance of AC discordance was for prediction of BW discordance â ¥ 25%, with a sensitivity of 70.8% and specificity of 86.4%. Conclusion: Ultrasound EFW discordance has an overall moderate accuracy in predicting BW discordance in twin pregnancy. Copyright © 2016 ISUOG. Published by John Wiley & Sons Ltd.
KW - Nuclear Medicine and Imaging
KW - Obstetrics and Gynecology
KW - Radiological and Ultrasound Technology
KW - Radiology
KW - Reproductive Medicine
KW - twin pregnancy
KW - ultrasound
KW - weight discordance
KW - Nuclear Medicine and Imaging
KW - Obstetrics and Gynecology
KW - Radiological and Ultrasound Technology
KW - Radiology
KW - Reproductive Medicine
KW - twin pregnancy
KW - ultrasound
KW - weight discordance
UR - https://publicatt.unicatt.it/handle/10807/111107
UR - https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85030218676&origin=inward
UR - https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85030218676&origin=inward
U2 - 10.1002/uog.17348
DO - 10.1002/uog.17348
M3 - Article
SN - 0960-7692
VL - 50
SP - 442
EP - 450
JO - Ultrasound in Obstetrics and Gynecology
JF - Ultrasound in Obstetrics and Gynecology
IS - 4
ER -