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MEDAL: MRI to Establish Diagnosis Against Laparoscopy

Can magnetic resonance imaging scan replace or triage the use of laparoscopy in establishing a diagnosis amongst women presenting in secondary care with chronic pelvic pain?

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ISRCTN
Registry ID
ISRCTN13028601
Enrollment
340
Registered
2012-02-20
Start date
2011-12-09
Completion date
Unknown
Last updated
2018-08-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Chronic pelvic pain Signs and Symptoms Pelvic and perineal pain

Interventions

MRI and laparoscopy compared with reference standard. Those who are eligible and consent to participation in the diagnostic study will have a MRI scan scheduled before the diagnostic laparoscopy.

Sponsors

Queen Mary, University of London (UK)
Lead Sponsor

Eligibility

Sex/Gender
Female

Inclusion criteria

Inclusion criteria: 1. Women aged 16 and over 2. Women referred to a gynaecologist with CPP 3. Women who have given written informed consent 4. Need for a laparoscopy is established and the patient wishes to proceed with it

Exclusion criteria

Exclusion criteria: 1. Women who have had a hysterectomy 2. Women who are pregnant 3. Women unable to give consent through incapacity or inability to speak English and lack of suitable interpreter 4. Women who are considered to definitely require an MRI, based on ultrasound and history 5. Women with an identifiable cause of CPP for which treatment can be initiated

Design outcomes

Primary

MeasureTime frame
To assess if MRI can replace or triage the need for laparoscopy in women presenting with Chronic Pelvic Pain (CPP). The trialists will determine the proportion of women for whom MRI is sufficiently accurate to replace laparoscopy following evaluation of presenting characteristics. This will be completed by ascertaining if the 'post-laparoscopy diagnoses' has added any clinical benefit to the 'post MRI diagnoses' (i.e. whether it has diagnosed substantially more pathological conditions) or whether it could have been avoided.

Secondary

MeasureTime frame
1. To compare the diagnostic accuracy of the post-MRI diagnoses and the post-laparoscopy diagnoses for the absence of any pathological cause (i.e. idiopathic) and the main pathological causes of CPP 2. To determine the added value of laparoscopy over MRI and both tests over information collected at baseline (history/clinical examination/ultrasound) 3. To quantify the impact that MRI and laparoscopy have on diagnostic decision-making, and to compare the certainty of the post-MRI diagnoses and the post-laparoscopy diagnoses 4. Estimate the proportion of women for whom a diagnostic and/or therapeutic laparoscopy is indicated 5. To determine, using multiple logistic regression, the presenting characteristics which identify the subgroups who would benefit most from MRI and conversely, those who would not benefit 6. To perform a decision-analytic model based economic evaluation determining the cost-effectiveness of MRI in reducing the need for laparoscopy

Countries

United Kingdom

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 23, 2026