Obstetric delivery
Conditions
Interventions
Index test:protractiondisorders, 
arrestdisorders, 
Gold Standard:failure to progress in labor without primary uterine inertia
occipitotransverse 
occipitoposterior 
and 
malpresetation
Sponsors
Nanfang Hospital of Southern Medical University
Eligibility
Sex/Gender
Female
Age
19 Years to 41 Years
Inclusion criteria
Inclusion criteria: 1. Women with singleton pregnancy and cephalic fetal presentation at 37-42 weeks gestation; 2. Women who will delivery at our institution; 3. No server complication requiring cesarean section; 4. No contraindication to the use of MRI; 5. Women have the ability to give informed consent.
Exclusion criteria
Exclusion criteria: 1. Women with multiple gestations and malpresentation (ie breech or transverse lie); 2. Major fetal malformations; 3. Women who have the cesarean delivery plan and won't undergo labor trials; 4. Women with pelvic deformity and a history of pelvic surgery or fracture that indications for cesarean delivery; 5. Women with vaginal deformity and a history of cervical surgery that requiring cesarean section.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Evaluation of the predictive value of three-dimensional measurements of pelvic and fetus in the prediction of Cephalic Delivery; | — |
Secondary
| Measure | Time frame |
|---|---|
| the feasibility of three-dimensional reconstruction of pelvis at 37-42 weeks gestation;the feasibility of three-dimensional reconstruction of fetus at 37-42 weeks gestation;the feasibility of three-dimensional reconstruction of pelvis and fetus at 37-42 weeks gestation;The inter- and intra-observer variation of three-dimensional measurements of pelvis and fetus;the difference of pelvic and fetal sizes between spotanous vaginal delivery and dystocia; | — |
Countries
China
Contacts
Public ContactPing Liu
Nanfang Hospital of Southern Medical University
Outcome results
None listed