Obstetric Labor Complications
Conditions
Keywords
technological progress
Brief summary
It is possible to perform a pelvimetry by MRI as a substitute to pelvimetry by CT, hence sparing the patient from a dose of irradiation.
Detailed description
The Principal investigator want to evaluate new MRI sequences offering both an optimal contrast between mineral bone and soft tissues, and a shorter acquisition time. Indeed, the recent developments of specific MRI sequences to preferentially image the mineral bone (namely the ZTE and lavaflex 3D T1-weighted SPGR sequences) allow performing pelvimetry measurements on MR images offering an optimal "pseudo CT" contrast, with an MR acquisition time that is less than 10 minutes. Preliminary tests of these sequences have been carried out in our center in order to be able to implement these sequences on our clinical and research MRI machines. The study team wish to undertake a study to validate the use of this rapid and non-irradiating MRI approach, with the aim to replace a CT pelvimetry by a MRI pelvimetry demonstrated as being as reliable.
Interventions
DEVICEMRI pelvimetry
MRI of the pelvis
Sponsors
Cliniques universitaires Saint-Luc- Université Catholique de Louvain
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE
Intervention model description
Each patients will have a CT scan (classic follow-up) and an MRI (for the study)
Eligibility
Sex/Gender
FEMALE
Age
18 Years to 99 Years
Healthy volunteers
No
Inclusion criteria
* Pregnant woman 33 to 41 week * Woman who gave birth by cesarean section, for whom the obstetrician requests a pelvimetry CT for the next pregnancy * Pelvimetry planned by the obstetrical team outside of "emergency" pathway * Adhere to the study protocol after reading the patient information document have signed the informed consent form to participate in the study
Exclusion criteria
* Usual contraindications to MRI (Pacemaker, Metallic foreign body, Cochlear implant,…) * Severe claustrophobia * uncomfortable back position
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Prove the non-inferiority of MRI compared to CT for pelvimetry. | 30 minutes (duration of the exam+ measurement) | Measurement of pelvic bone diameters in pregnant women |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Evaluate patient convenience for both examinations (CT and MRI) | immediately after both examinations | questionnaire (scale from zero to ten, zero = more pleasant, ten=least pleasant) |
Countries
Belgium
Contacts
CONTACTFrédéric Lecouvet, MD, PhD
PRINCIPAL_INVESTIGATORFrédéric Lecouvet, MD, PhD
Cliniques universitaires Saint-Luc- Université Catholique de Louvain
Outcome results
None listed