Related Experiment Video
Updated: Jun 25, 2026

03:14
Spinal Sonography for Ultrasound-Guided Lumbar Neuraxial Anesthesia
Published on: January 31, 2025
Ultrasound-guided artificial insemination: a randomized controlled trial
Olga Ramón1, Roberto Matorras, Beatriz Corcóstegui
1Human Reproduction Unit, Obstetrics and Gynaecology Department, Hospital de Cruces-Baracaldo, Vizcaya, Spain.
Human Reproduction (Oxford, England)
|February 7, 2009
Summary
Ultrasound guidance during intrauterine insemination (IUI) did not improve pregnancy rates compared to standard methods. This study found similar pregnancy success rates between ultrasound-guided and conventionally performed IUI procedures.
Area of Science:
- Reproductive Medicine
- Infertility Treatments
- Ultrasound Applications in Gynecology
Background:
- Intrauterine insemination (IUI) is a common infertility treatment.
- Optimizing IUI protocols to enhance pregnancy rates (PRs) is an ongoing area of research.
- The role of ultrasound guidance in improving IUI outcomes remains under investigation.
Purpose of the Study:
- To determine if ultrasound guidance during intrauterine insemination (IUI) can significantly increase pregnancy rates (PRs).
Main Methods:
- A randomized study involving 73 couples undergoing 231 IUI cycles.
- Patients were allocated to either ultrasound-guided IUI (n=33) or clinical IUI (n=40).
- Pregnancy rates were compared between the two groups.
Main Results:
- Pregnancy rates per cycle were 16.0% for ultrasound-guided IUI and 16.8% for the control group.
- No statistically significant difference in PRs was observed between the groups (95% CI: -8.8 to 10).
- Similar outcomes were noted for PR per woman, first-cycle PR, and cumulative PR.
Conclusions:
- Ultrasound-guided IUI does not offer superior pregnancy outcomes compared to blind insemination.
- The observed PR per cycle was comparable between both methods.
- The study was terminated early due to futility, indicating no expected benefit from further recruitment.