Prognostic value of elastography in predicting premature delivery

Area of Science:

• Obstetrics and Gynecology
• Medical Imaging
• Perinatology

Background:

• Preterm delivery remains a leading cause of neonatal morbidity and mortality.
• Accurate prediction of preterm birth risk is crucial for timely intervention.
• Current methods for cervical assessment, like vaginal exams and Bishop score, have limitations in objectivity.

Purpose of the Study:

• To evaluate changes in uterine cervical consistency using elastography.
• To correlate elastographic findings with the risk of premature delivery.
• To assess the relationship between cervical elasticity and the time from examination to delivery.

Main Methods:

• Elastography was performed on 44 patients hospitalized for preterm labor before 37 weeks gestation.
• Elastograms were analyzed using the Elastography Index (El), a 0-4 color scale representing tissue hardness.
• Correlations between El of cervical regions, cervical length, preterm delivery, and time to delivery were statistically analyzed.

Main Results:

• A strong correlation was found between the Elastography Index of the internal os and both the risk of preterm birth (p<0.001) and time to delivery (p<0.001).
• Cervical canal length also showed a significant correlation with preterm delivery risk (p=0.001) and time to delivery (p=0.006).
• Twenty-one patients delivered preterm, while 23 delivered at term.

Conclusions:

• Elastography provides an objective measure of cervical elasticity, potentially serving as an alternative to subjective assessments like the Bishop score.
• Objective cervical assessment via elastography can aid in identifying high-risk pregnancies for preterm delivery.
• Improved patient selection may lead to better management decisions, reducing unnecessary interventions and hospitalizations.