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→Measurement: Defined
==Measurement==
{|class="wikitable"
!colspan=2| Parameter !! Image<br>([[maximum intensity projection]])<ref name=Cetin2016/> !! Definition End points !! Normal measures
|-
!rowspan=2| Pelvic inlet
! Obstetric conjugate
| [[File:Low-dose_CT_of_obstetric_conjugate.jpg|120px]] <br>Median plane
| The line between the narrowest bony points formed by the sacral promontory and the inner pubic arch
| 10 to 12 cm.<ref name=Cetin2016/>
|-
! Interspinous distance
| [[File:Low-dose_CT_of_interspinous_diameter.jpg|170px]]
| The line between the narrowest bone points connects of the ischial spines
| 9.5 to 11.5 cm.<ref name="pmid21509231">{{cite journal | vauthors = Gowri V, Jain R, Rizvi S | title = Magnetic resonance pelvimetry for trial of labour after a previous caesarean section | journal = Sultan Qaboos University Medical Journal | volume = 10 | issue = 2 | pages = 210–4 | date = August 2010 | pmid = 21509231 | pmc = 3074700 }}</ref>
|-
! Sagittal pelvic outlet diameter
| [[File:Low-dose_CT_of_sagittal_pelvic_outlet_diameter.jpg|120px]]
| The narrowest bony points formed by the sacral promontory and the middle of the coccyx.<ref>{{cite book|isbn=978-0-443-10281-3|year=2010|publisher=Elsevier Ltd|author=Sara Paterson-Brown, Phillip Bennett, Catherine Williamson|title=Basic Science in Obstetrics and Gynaecology (Fourth Edition) - Obstetric pelvic definitions and dimensions}}</ref> || 9.5 to 11.5 cm.<ref name="pmid21509231"/>
|-
! Intertuberous diameter
| [[File:Low-dose_CT_scan_of_intertuberous_diameter.jpg|150px]]
| The ischial tuberosities || 10 to 12 cm.<ref name="pmid21509231"/>
|}
