Related Experiment Video
Updated: May 4, 2026

A Novel Use of Three-dimensional High-frequency Ultrasonography for Early Pregnancy Characterization in the Mouse
Published on: October 24, 2017
3rd trimester ultrasound assessment
Cecilia Villalain1, Alberto Galindo1, Enery Gómez-Montes1
1Foetal Medicine Unit. Obstetrics and Gynecology Department. Hospital Universitario 12 de Octubre. Complutense University, Madrid. Instituto de Investigación Del Hospital 12 de Octubre (imas12). Primary Care Interventions to Prevent Maternal and Child Chronic Diseases of Perinatal and Developmental Origin (RICORS Network), RD21/0012/0024, Madrid, Spain.
A systematic third-trimester ultrasound (35-37 weeks) can assess fetal well-being and detect anomalies. This approach aims to reduce perinatal morbidity and mortality through standardized protocols.
Area of Science:
- Maternal-Fetal Medicine
- Diagnostic Imaging
- Obstetrics
Background:
- Third-trimester ultrasound's role in reducing perinatal morbidity and mortality is debated.
- Current recommendations for routine third-trimester scans show significant disparity.
- Recent studies question the clinical utility and impact of these scans.
Purpose of the Study:
- To evaluate the effectiveness of a systematic third-trimester ultrasound protocol.
- To determine the optimal timing for third-trimester scans (35-37 weeks).
- To assess the impact of standardized protocols on maternal and perinatal outcomes.
Main Methods:
- Implementing a systematic scan between 35 weeks + 0 days and 36 weeks + 6 days.
- Assessing estimated fetal weight, fetal Doppler (umbilical and middle cerebral artery), placenta, amniotic fluid, fetal anatomy, and presentation.
- Utilizing pre-defined, evidence-based protocols for anomaly detection.
Main Results:
- The systematic approach includes comprehensive fetal and placental assessments.
- High-risk cases may require additional specialized evaluations.
- Standardized protocols are crucial for managing detected anomalies.
Conclusions:
- A systematic third-trimester ultrasound approach, performed between 35-37 weeks, is proposed.
- This systematic evaluation can aid in reducing perinatal morbidity and mortality.
- Adherence to evidence-based protocols post-anomaly detection is vital for improving outcomes.
Related Concept Videos
Assessing Blood pressure using a doppler ultrasound
Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment:
Ultrasonography
During an ultrasonography procedure, a handheld device called...
Assessment of the Abdomen III: Palpation
Ultrasound II: Endoscopic Ultrasound and FibroScan
Endoscopic Ultrasound (EUS):
Ultrasound I: Abdominal Ultrasonography
Abdominal ultrasonography, commonly known as abdominal ultrasound, is a vital, non-invasive medical imaging technique widely used in healthcare.
Procedure:
This diagnostic tool allows the clinician to visually inspect internal structures within the abdomen, including vital organs such as the liver, gallbladder, pancreas, kidneys, and spleen.
The abdominal ultrasound process begins with applying a special gel to the patient's skin over the abdomen. This gel enhances the...
Imaging Studies II: Ultrasonography

