Magnetic Resonance Imaging of Pelvic Floor Dysfunction

Department of Radiology, University of Washington, Box 359728, 325 9th Avenue, Seattle, WA 98104-2499, USA. Electronic address: .
Radiologic Clinics of North America (Impact Factor: 1.98). 11/2013; 51(6):1127-39. DOI: 10.1016/j.rcl.2013.07.004
Source: PubMed

ABSTRACT Pelvic floor dysfunction is largely a complex problem of multiparous and postmenopausal women and is associated with pelvic floor or organ descent. Physical examination can underestimate the extent of the dysfunction and misdiagnose the disorders. Functional magnetic resonance (MR) imaging is emerging as a promising tool to evaluate the dynamics of the pelvic floor and use for surgical triage and operative planning. This article reviews the anatomy and pathology of pelvic floor dysfunction, typical imaging findings, and the current role of functional MR imaging.

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    ABSTRACT: The purpose of this study was to determine the value of dynamic pelvic floor MRI relative to standard clinical examinations in treatment decisions made by an interdisciplinary team of specialists in a center for pelvic floor dysfunction. 60 women were referred for dynamic pelvic floor MRI by an interdisciplinary team of specialists of a pelvic floor center. All patients were clinically examined by an urologist, gynecologist, a proctological, and colorectal surgeon. The specialists assessed individually and in consensus, whether (1) MRI provides important additional information not evident by physical examination and in consensus whether (2) MRI influenced the treatment strategy and/or (3) changed management or the surgical procedure. MRI was rated essential to the treatment decision in 22/50 cases, leading to a treatment change in 13 cases. In 12 cases, an enterocele was diagnosed by MRI but was not detected on physical exam. In 4 cases an enterocele and in 2 cases a rectocele were suspected clinically but not confirmed by MRI. In 4 cases, MRI proved critical in assessment of rectocele size. Vaginal intussusception detected on MRI was likewise missed by gynecologic exam in 1 case. MRI allows diagnosis of clinically occult enteroceles, by comprehensively evaluating the interaction between the pelvic floor and viscera. In nearly half of cases, MRI changed management or the surgical approach relative to the clinical evaluation of an interdisciplinary team. Thus, dynamic pelvic floor MRI represents an essential component of the evaluation for pelvic floor disorders.
    Radiological Society of North America 2013 Scientific Assembly and Annual Meeting; 12/2013
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    ABSTRACT: Background: The proper evaluation of the pelvic floor muscles (PFM) is essential for choosing the correct treatment. Currently, there is no gold standard for the assessment of female PFM function. Objective: To determine the correlation between vaginal palpation, vaginal squeeze pressure, and electromyographic and ultrasonographic variables of the female PFM. Method: This cross-sectional study evaluated 80 women between 18 and 35 years of age who were nulliparous and had no pelvic floor dysfunction. PFM function was assessed based on digital palpation, vaginal squeeze pressure, electromyographic activity, bilateral diameter of the bulbocavernosus muscles and the amount of bladder neck movement during voluntary PFM contraction using transperineal bi-dimensional ultrasound. The Pearson correlation was used for statistical analysis (p<0.05). Results: There was a strong positive correlation between PFM function and PFM contraction pressure (0.90). In addition, there was a moderate positive correlation between these two variables and PFM electromyographic activity (0.59 and 0.63, respectively) and movement of the bladder neck in relation to the pubic symphysis (0.51 and 0.60, respectively). Conclusions: This study showed that there was a correlation between vaginal palpation, vaginal squeeze pressure, and electromyographic and ultrasonographic variables of the PFM in nulliparous women. The strong correlation between digital palpation and PFM contraction pressure indicated that perineometry could easily be replaced by PFM digital palpation in the absence of equipment.
    Revista Brasileira de Fisioterapia 10/2014; DOI:10.1590/bjpt-rbf.2014.0038 · 0.94 Impact Factor
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    ABSTRACT: AimsFaecal incontinence (FI) requires careful assessment of the aetiology to determine the most effective treatment. The aims of the study were to evaluate MRI defecography in FI and to compare it with clinical examination combined with rigid rectoscopy in assessing the pelvic floor in patients with FI.Method Consecutive patients with FI referred over a three-year period to our tertiary centre for MRI defecography were retrospectively studied. MRI images of the pelvic floor were compared with clinical examination and anoscopy and rectoscopy.ResultsSeventy-four female patients (mean age 60.5 [30.0-81.0] years) were recruited. MRI defecography showed conditions which often overlapped including internal intussusception in 19 (25.7%) and pelvic floor descent in 24 (32.4%). There was average agreement between MRI and clinical examination for a significant anterior rectocele (k=0.40) and poor agreement between MRI and anoscopy/rectoscopy for intra-rectal (κ =0.06) and intra-anal intussusception (κ=0.11).Conclusion Other than for anterior rectocele, there is poor correlation between MRI defecography and clinical examination with rigid rectoscopy and can detect a variety of abnormal static and dynamic pelvic disorders. This includes enterocele, which could result in a modification of the surgical approach to intussusception and anterior rectocele.This article is protected by copyright. All rights reserved.
    Colorectal Disease 12/2014; 17(3). DOI:10.1111/codi.12889 · 2.35 Impact Factor
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