ArticleCanadian Urological Association journal = Journal de l'Association des urologues du Canada
Positional pelvic organ prolapse (POP) evaluation using open, weight-bearing magnetic resonance imaging (MRI).
Article in Canadian Urological Association journal = Journal de l'Association des urologues du Canada. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
8 citing papers in PubMed, 13 citations in OpenAlex.
- The Clinical Significance of Key Pelvic Floor Ultrasound Indicators in POP Management: A Retrospective Study of Diagnostic Accuracy and Therapeutic Intervention.International journal of women's health · 2026Article
- International Urogynecological Consultation Chapter 2.2: Imaging in the Diagnosis of Pelvic Organ Prolapse.International urogynecology journal · 2025Review
- Upright Open MRI (MRO) Evaluation of the Anatomic Effects of Yoga Postures on the Bladder Neck and Urethra.Diagnostics (Basel, Switzerland) · 2025Article
- Pelvic inclination correction system for magnetic resonance imaging analysis of pelvic organ prolapse in upright position.International urogynecology journal · 2022Article
- Standing open magnetic resonance imaging improves detection and staging of pelvic organ prolapse.Canadian Urological Association journal = Journal de l'Association des urologues du Canada · 2022Article
- Pelvic floor morphology in the standing position using upright computed tomography: age and sex differences.International urogynecology journal · 2020Article
- Relevance of open magnetic resonance imaging position (sitting and standing) to quantify pelvic organ prolapse in women.Canadian Urological Association journal = Journal de l'Association des urologues du Canada · 2018Article
- Advances in basic science methodologies for clinical diagnosis in female stress urinary incontinence.Canadian Urological Association journal = Journal de l'Association des urologues du Canada · 2017Review
Corrections and comments
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Authors and funding
4 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionMagnetic resonance imaging (MRI) of patients with pelvic organ prolapse (POP) is completed in the supine position. Open magnetic resonance imaging (MRO) uses vertical magnets, allowing imaging in a variety of upright postures. This pilot study used MRO to evaluate the change of prolapse in different positions compared to non-prolapsed images.
methodsIn total, 11 women (6 POP, 5 controls) aged 24 to 65 years had 12 MRO images (midline sagittal pelvic line) consecutively when supine, sitting and standing with a full and empty bladder. Lengths between the lowest point of the bladder to the pubococcygeal (PC) and pubopromontoreal (PP) lines in each image were compared, and the ratio of bladder area under the PC and PP lines to the total bladder area.
resultsSignificant elongation between the PC line and lowest point of the bladder was evident in subjects with POP comparing supine and standing images (p = 0.03), but not controls (p = 0.07). Similarly, this axis was significantly longer in cystocele subjects versus controls only in the standing position. Bladder area under the PC line was significantly increased between supine and standing positions only among subjects with cystocele (p < 0.01), and significantly larger among the study group in the standing position (p < 0.005), less significant in the supine position (p = 0.015), and not significant in the sitting position (p = 0.3).
conclusionsMRO imaging allows us to investigate the effects of upright position and weight bearing on the staging of POP. Imaging patients when sitting and standing identified that significant changes occur in the maximal descent of the bladder.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.