Better imaging for bowel endometriosis: could a new ultrasound method reduce unnecessary surgery?
NCT ID NCT07517055
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at two ways to measure endometriosis growths in the bowel before and during surgery. About 98 women will get both a standard vaginal ultrasound before surgery and a special ultrasound during their operation. The goal is to see if the during-surgery ultrasound gives more accurate measurements, which could help doctors plan safer surgeries and avoid removing more bowel than needed.
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Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 98 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Apr 2026
An estimate. Start dates often move.
- Expected to finish
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Jul 2028
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Women with suspected deep infiltrating endometriosis of the posterior compartment involving the rectum or rectosigmoid colon who are scheduled for surgical treatment.
- Ages
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18 to 55 years
- Sex
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Female participants only
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Women aged 18 to 55 years * Clinical and/or imaging suspicion of rectal or rectosigmoid deep infiltrating endometriosis (DIE) * Indication for laparoscopic or robotic surgery for DIE * Ability and willingness to provide written informed consent Exclusion Criteria: * Previous bowel resection for deep infiltrating endometriosis * Active inflammatory bowel disease * Pregnancy * Technical inability to perform transvaginal or intraoperative ultrasound * Refusal or withdrawal of informed consent
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Can Pre-Surgery pelvic floor therapy stop endometriosis pain after the operation?
- Appendix: the hidden driver of endometriosis pain?
- Allergy pill put to the test against endometriosis pain
- Can ultrasound and tissue clues reveal which endometriosis lesions carry cancer risk?
- Can AI personalize exercise to ease pelvic pain?
- Can AI learn to spot endometriosis and fibroids on ultrasound?