Dynamic Magnetic Resonance Imaging of Pelvic Floor Disorders

Dynamic magnetic resonance imaging (MRI) has emerged as a pivotal tool for the assessment of pelvic floor disorders by providing high-resolution, radiation-free visualisation of anatomical structures in motion. Unlike static scans, dynamic MRI acquires images during functional tasks such as straining, squeezing and defecation, enabling simultaneous evaluation of the anterior, middle and posterior compartments. This technique captures organ descent, levator ani function and hiatus dimensions with excellent soft-tissue contrast and multiplanar detail. It informs diagnosis, guides multidisciplinary treatment planning and helps to tailor surgical or conservative interventions. Recent developments have focused on standardising acquisition protocols, refining reference lines and angles for quantification, and exploring upright versus supine imaging to reflect physiological loading conditions. As populations age and the burden of pelvic floor dysfunction rises globally, dynamic MRI offers reproducible metrics for multicompartmental disorders, supports outcome measurement and bridges gaps between radiology, gynaecology and colorectal surgery.

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Dynamic Magnetic Resonance Imaging of Pelvic Floor Disorders publication trend

The graph below shows the total number of articles in dynamic magnetic resonance imaging of pelvic floor disorders across all publications each year (not limited to Nature Index journals).

Technical terms

Dynamic magnetic resonance imaging: Sequential capture of MR images during pelvic floor movements to assess functional and anatomical changes under strain or evacuation.

Pelvic floor compartments: The anterior, middle and posterior divisions of the pelvic floor anatomy, encompassing bladder, uterus/vagina and rectum respectively, evaluated simultaneously in dynamic MRI.

Pubococcygeal line (PCL): A reference line drawn from the inferior border of the pubic symphysis to the last coccygeal joint, used to measure organ descent.

Pelvic organ prolapse quantification (POP-Q): A standardised clinical system that grades prolapse severity by measuring specific vaginal points relative to the hymenal ring.

Pelvic inclination correction system (PICS): An angular adjustment applied to reference lines to account for patient positioning (supine or upright) when quantifying organ descent on MRI.

References

1. Diagnostic Value of Dynamic Magnetic Resonance Imaging (dMRI) of the Pelvic Floor in Genital Prolapses. Biomedicines (2023).
2. Static and Dynamic Magnetic Resonance Imaging in Female Pelvic Floor Dysfunction: Correlation With Pelvic Organ Prolapse Quantification. Cureus (2023).
3. Pelvic inclination correction system for magnetic resonance imaging analysis of pelvic organ prolapse in upright position. International Urogynecology Journal (2022).