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Introduction and Hypothesis <p>The objective was to elucidate the clinical utility of two reference lines, the pubosacrococcygeal joint line (PCL<sub>jnt</sub>) and pubococcygeal joint line (PCL<sub>cc</sub>), in the quantitative diagnosis of pelvic organ prolapse (POP) and pelvic floor laxity.</p> Methods <p>A retrospective analysis of magnetic resonance defecography (MRD) in patients with stage II or above POP was conducted. POP and pelvic floor relaxation were quantitatively assessed using both PCL<sub>jnt</sub> and PCL<sub>cc</sub> as reference lines. Further research, point-to-point correlation analysis was performed between the pelvic organ prolapse quantification (POP-Q) system and MRD to investigate the discrepancies between the two reference lines.</p> Results <p>There was no significant statistical difference in the degree of cystocele and H line between the PCL<sub>jnt</sub> and PCL<sub>cc</sub> groups (<i>p</i> &gt; 0.05). Nevertheless, significant differences in the degree of uterine prolapse and M-line between the two groups were observed (<i>p</i> = 0.00). Both the PCL<sub>jnt</sub> and PCL<sub>cc</sub> reference lines demonstrated better correlation with POP-Q, and the PCL<sub>cc</sub> exhibited slightly higher correlation coefficients than the PCL<sub>jnt</sub>.</p> Conclusions <p>The results revealed significant moderate correlations between both reference lines and key POP-Q landmarks. Both PCL<sub>jnt</sub> and PCL<sub>cc</sub> can be utilized for interpreting MRD images and diagnosing POP for anterior wall and uterine prolapse.</p>

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Assessment of Different Pubococcygeal Lines for the Quantitative Diagnosis of Pelvic Organ Prolapse Using Magnetic Resonance Defecography

  • 期刊论文

  • 发表日期：

    2025年1月16日

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  • Min Li,
  • Sumei Wang,
  • Tongtong Liu,
  • Xiao Liu

摘要

Introduction and Hypothesis

The objective was to elucidate the clinical utility of two reference lines, the pubosacrococcygeal joint line (PCLjnt) and pubococcygeal joint line (PCLcc), in the quantitative diagnosis of pelvic organ prolapse (POP) and pelvic floor laxity.

Methods

A retrospective analysis of magnetic resonance defecography (MRD) in patients with stage II or above POP was conducted. POP and pelvic floor relaxation were quantitatively assessed using both PCLjnt and PCLcc as reference lines. Further research, point-to-point correlation analysis was performed between the pelvic organ prolapse quantification (POP-Q) system and MRD to investigate the discrepancies between the two reference lines.

Results

There was no significant statistical difference in the degree of cystocele and H line between the PCLjnt and PCLcc groups (p > 0.05). Nevertheless, significant differences in the degree of uterine prolapse and M-line between the two groups were observed (p = 0.00). Both the PCLjnt and PCLcc reference lines demonstrated better correlation with POP-Q, and the PCLcc exhibited slightly higher correlation coefficients than the PCLjnt.

Conclusions

The results revealed significant moderate correlations between both reference lines and key POP-Q landmarks. Both PCLjnt and PCLcc can be utilized for interpreting MRD images and diagnosing POP for anterior wall and uterine prolapse.