Uploaded May 2026 | Updated September 2026, 2 weeks ago

---

Assessing gestational age is a core skill in early pregnancy ultrasound. In this lesson, learn how to obtain the correct ultrasound views and accurately measure crown-rump length and biparietal diameter to estimate gestational age. You'll see how to identify the fetus in its longest cross-section for crown-rump length measurement and obtain a symmetric fetal skull view for biparietal diameter assessment.
#FirstTrimesterUltrasound #OBGYN #Medmastery

📘 Access the first chapter of our First Trimester Ultrasound Power Hour course for free: bit.ly/first-trimester-ultrasound
🌟 Explore 140+ medical courses and workshops with a trial account bit.ly/4wTqp6n

⏰ In this video:
0:00 Assessment of gestational age using ultrasound
0:43 Identifying the fetus on transabdominal ultrasound
0:51 Measuring crown-rump length
1:20 Obtaining the fetal skull view for biparietal diameter
1:37 Measuring biparietal diameter