R. Mashiach

Accuracy of sonographically estimated fetal weight in 840 women with different pregnancy complications prior to induction of labor

To evaluate the accuracy of sonographically estimated fetal weight (EFW) shortly before induction of labor in the presence of different pregnancy complications, and to define possible variables affecting it.

Prediction of fetal macrosomia: effect of sonographic fetal weight‐estimation model and threshold used

To compare the accuracy of 21 sonographic fetal weight‐estimation models and abdominal circumference (AC) as a single measure for the prediction of fetal macrosomia (> 4000 g) using either fixed or optimal model‐specific thresholds.

Early sonographic detection of recurrent fetal eye anomalies

To determine the possible association between congenital eye anomaly of a previous child in the family and current congenital eye anomaly.

Sonographic estimation of fetal head circumference: how accurate are we?

To assess the accuracy of sonographic estimation of fetal head circumference (HC).

Accuracy of sonographic weight estimation as a function of fetal sex.

To determine whether the accuracy of sonographic fetal weight estimation is related to fetal sex.

Sonographic Evaluation of the Puerperal Uterus: Correlation with Manual Examination

Objectives: To document uterine involution after vaginal delivery and cesarean section by abdominal sonography and to compare the efficacy of manual examination and ultrasonography. Study Design: Postpartum manual and sonographic assessment of uterine involution was performed in 120 patients following vaginal and cesarean delivery with an attempt to build a database of changes in uterine dimensions. The patients’ reports on the intensity of uterine contractions and vaginal bleeding were compared to the results of sonographic imaging. Results: Palpation revealed proper uterine involution in 80 and 25% of patients after vaginal delivery and cesarean section, respectively. It could not be performed in 2.5% after vaginal delivery compared to 50% after cesarean section. Uterine length was found to be significantly greater after cesarean section than after vaginal delivery (p = 0.0001), and the anterior uterine wall was significantly thinner than the posterior wall (p = 0.0001). Uterine length was significantly greater in the presence of blood accumulation in the uterine cavity (20.7 cm), than when the uterus was empty (18.8 cm) (p = 0.001). In correlating between the patient’s report of intense bleeding and the sonographic picture of blood in the uterine cavity sonography had a sensitivity of 0.56 and a specificity of 0.83, whereas the patients’ reports had a positive predictive value of 0.22. The difference in information provided by the patients versus that provided by sonography was highly significant (p = 0.001, χ2 test). Conclusion: Within 3 days after delivery, patients particularly those having had a cesarean section, should undergo uterine sonographic scanning and manual palpation to evaluate involution and presence of blood in the uterine cavity.

Accuracy of sonographic fetal weight estimation: a matter of presentation.

To assess the accuracy of sonographic weight estimation for fetuses in breech presentation, and to determine whether certain sonographic models perform better than others in cases of breech presentation.

Does use of a sex-specific model improve the accuracy of sonographic weight estimation?

To determine whether the use of a sex‐specific sonographic model improves the accuracy of fetal weight estimation.

The 'virtual' cervical internal os: diagnosis during the first trimester of pregnancy

To determine the appropriate time during gestation for assessing the cervix for possible incompetence by ascertaining the gestational week at which the sac reaches the level of the internal os.

Reference values for γ‐glutamyl‐transferase in amniotic fluid in normal pregnancies

Nonvisualization of the fetal gallbladder by ultrasound poses a diagnostic dilemma. The aim of the study was to establish reference values for the hepatobiliary enzyme γ‐glutamyl‐transferase (GGT) in amniotic fluid in normal pregnancies, and to determine the maximal week of gestation in which reference values can be determined.