Pelvimetry
• NO IV contrast
• Obtain informed consent
• Supine position
• Body coil
1. SCOUT
2. AXIAL HASTE
3. SAGITTAL HASTE
4. CORONAL OBLIQUE HASTE – plane through pubic symphysis and sacral promontory
MEASUREMENTS:
Midsagittal:
1. Obstetric conjugate – sacral promontory to the top of the symphysis pubis
2. Sagittal outlet – end of the sacrum to the bottom of the inner cortex of the symphysis
Transverse:
1. Interspinous distance – narrowest distance between the ischial spines
2. Intertuberous distance – widest distance between the ischial tubersities
Oblique:
1. Transverse diameter – largest transverse distance of the pelvis