Evaluating 3D Ultrasound for Anal Sphincter Assessment

Use of Three-dimensional Transvaginal Ultrasound for Anal Sphincter Evaluation: "A New Technique"

Observational IRCCS Azienda Ospedaliero-Universitaria di Bologna · NCT06773520

This study is testing new 3D ultrasound techniques to see how well they can check the condition of the anal sphincter in pregnant women and new mothers to better understand related injuries and symptoms.

Quick facts

Study typeObservational
Enrollment200 (estimated)
Ages18 Years to 44 Years
SexFemale
SponsorIRCCS Azienda Ospedaliero-Universitaria di Bologna Academic / other
Locations1 site (Bologna, Bologna)
Trial IDNCT06773520 on ClinicalTrials.gov

What this trial studies

This observational study aims to assess the reproducibility of advanced 3D and 4D ultrasound techniques in evaluating the integrity and thickness of the anal sphincter during pregnancy and immediately postpartum. By utilizing a transvaginal probe, the study seeks to enhance the understanding of obstetric anal sphincter injuries (OASIS) and their impact on women's quality of life. The primary objective is to determine how reliably these new ultrasound methods can measure anal sphincter conditions, while secondary objectives include exploring the correlation between sphincter thickness and postpartum symptoms. The study will involve blinded assessments to minimize bias.

Who should consider this trial

Good fit: Ideal candidates are pregnant nulliparous or primiparous women aged 18 to 44 years.

Not a fit: Patients who are not pregnant or outside the age range of 18 to 44 years may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved diagnostic techniques for anal sphincter injuries, enhancing the quality of life for affected women.

How similar studies have performed: While there is limited research specifically on 3D/4D ultrasound for this purpose, advancements in ultrasound technology have shown promise in related fields.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Pregnant nulliparous or primiparous women;
* Age between 18 and 44 years
* Acquisition of informed consent form

Exclusion Criteria:

None

Where this trial is running

Bologna, Bologna

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Obstetric Anal Sphincter Injury3D untrasound
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.