Sigmann M-H, Delabrousse E, Riethmuller D, Runge M, Peyron C, Aubry S
Department of Osteoarticular Imaging, Jean Minjoz Regional University Hospital, 3, boulevard Alexandre-Fleming, 25000 Besançon, France.
Department of Gastrointestinal and Genitourinary Imaging, Jean Minjoz Regional University Hospital, 3, boulevard Alexandre-Fleming, 25000 Besançon, France; Laboratory of nanomedicine EA4662, University of Franche-Comté, Besançon, France.
Diagn Interv Imaging. 2014 Sep;95(9):833-8. doi: 10.1016/j.diii.2014.01.021. Epub 2014 Jun 3.
To demonstrate the reliability of the EOS imaging system in measuring the internal diameters of the bony pelvis.
A prospective study comparing the results of the pelvimetry of 18 dry pelvises carried out on the EOS imaging system to measurements taken manually and using the two current gold standard CT methods. Pelvimetric measurements of each pelvic bone were obtained using four methods and compared: direct manual measurements, spiral and sequential CT pelvimetry, and 2D-3D low-dose biplanar X-rays. The various obstetric diameters were measured to the millimetre and compared.
There was no significant difference in the different diameters assessed, with the exception of the interspinous diameter. There was a highly significant correlation (P < 0.001) between the values measured manually and by EOS for the Magnin index (Pearson = 0.98), the obstetric conjugate diameter (Pearson = 0.99), and the median transverse diameter (Pearson = 0.87).
The EOS imaging system allows for an ex vivo determination of the obstetrical diameters that is reliable enough to estimate obstetric prognosis, producing comparable measurements to CT. In view of concerns about protection from radiation, this low-dose imaging technique could become, after in vivo prospective validation, the new gold standard for pelvimetry and therefore a good alternative to CT.
证明EOS成像系统在测量骨盆内径方面的可靠性。
一项前瞻性研究，将18个干燥骨盆在EOS成像系统上进行骨盆测量的结果与手动测量以及使用当前两种金标准CT方法所获得的测量结果进行比较。使用四种方法获得每个骨盆骨的骨盆测量值并进行比较：直接手动测量、螺旋CT和序列CT骨盆测量以及二维-三维低剂量双平面X线检查。将各种产科径线测量到毫米并进行比较。
除棘间径外，所评估的不同径线之间无显著差异。手动测量值与EOS测量值在Magnin指数（Pearson = 0.98）、产科结合径（Pearson = 0.99）和中横径（Pearson = 0.87）方面存在高度显著相关性（P < 0.001）。
EOS成像系统能够在体外确定产科径线，其可靠性足以估计产科预后，测量结果与CT相当。鉴于对辐射防护的关注，这种低剂量成像技术在经过体内前瞻性验证后，可能会成为骨盆测量的新金标准，因此是CT的一个很好的替代方法。
