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Related Concept Videos

Imaging Studies IV: Magnetic Resonance Imaging01:27

Imaging Studies IV: Magnetic Resonance Imaging

Introduction:Magnetic Resonance Imaging, or MRI, can include a specialized imaging technique of the urinary system known as Magnetic Resonance Urography (MRU). This radiation-free technique uses strong magnetic fields and radio waves to produce detailed images with the help of a computer. MRU is particularly effective for visualizing fluid-filled structures like the kidneys, ureters, and bladder.Applications of MRI in the Genitourinary SystemKidneys and Ureters: MRI detects tumors, cysts,...
Imaging Studies II: Ultrasonography01:24

Imaging Studies II: Ultrasonography

IntroductionUltrasonography, or renal ultrasound, is a noninvasive medical imaging technique that uses high-frequency sound waves to visualize the kidneys, ureters, bladder, and surrounding tissues.Indications for Urinary System UltrasonographyUrinary system ultrasonography is indicated in various clinical scenarios, such as:Kidney Stones (Urolithiasis): To detect and monitor the size and presence of kidney or urinary tract stones.Hydronephrosis: To assess the dilation of the renal pelvis and...
Magnetic Resonance Imaging01:24

Magnetic Resonance Imaging

Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...
Imaging Studies I: CT and MRI01:14

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Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
Imaging Studies VI: Voiding Cystourethrography and Cystography01:22

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Voiding Cystourethrography (VCUG) and Cystography are specialized radiographic procedures used to examine the structure and function of the bladder and urethra.Voiding Cystourethrography (VCUG)A Voiding Cystourethrogram (VCUG) is a diagnostic imaging procedure that assesses the anatomy and function of the lower urinary tract. It focuses on the bladder, bladder neck, and urethra, helping detect abnormalities such as vesicoureteral reflux (VUR)—the backward or reverse flow of urine into the...
Imaging Studies V: Intravenous Urography and Retrograde Pyelography01:22

Imaging Studies V: Intravenous Urography and Retrograde Pyelography

IntroductionIntravenous Urography (IVU) and Retrograde Pyelography (RP) are important diagnostic imaging techniques used to evaluate the urinary system. These methods help identify structural abnormalities, obstructions, and functional issues in the kidneys, ureters, and bladder. Both procedures use iodine-based contrast media to enhance the visibility of urinary tract structures on X-ray images, though they differ in their methods and indications.1. Intravenous Urography (IVU)Intravenous...

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Related Experiment Video

Updated: May 24, 2026

Quantification of Levator Ani Hiatus Enlargement by Magnetic Resonance Imaging in Males and Females with Pelvic Organ Prolapse
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Dynamic pelvic floor imaging: MRI techniques and imaging parameters.

Caecilia S Reiner1, Dominik Weishaupt

  • 1Institute of Diagnostic and Interventional Radiology, University Hospital Zurich, Raemistrasse 100, 8091, Zurich, Switzerland, caecilia.reiner@gmx.at.

Abdominal Imaging
|February 22, 2012
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Summary

Magnetic resonance imaging (MRI) offers detailed pelvic floor anatomy visualization for assessing disorders. Dynamic MRI sequences capture pelvic floor function during rest, contraction, and straining.

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Area of Science:

  • Radiology
  • Anatomy
  • Medical Imaging

Background:

  • Pelvic floor disorders affect many individuals.
  • Understanding pelvic floor anatomy is crucial for diagnosis.
  • Magnetic Resonance Imaging (MRI) provides detailed anatomical insights.

Purpose of the Study:

  • To review the technical aspects of static and dynamic pelvic floor MRI.
  • To highlight MRI's utility in assessing pelvic floor morphology and function.
  • To explain MRI sequences used for pelvic floor imaging.

Main Methods:

  • Utilizing static T2-weighted sequences for detailed pelvic floor morphology.
  • Employing rapid half-Fourier T2-weighted, balanced steady state free precession, or gradient-recalled echo sequences for dynamic imaging.
  • Acquiring sagittal images during rest, pelvic squeeze, pelvic strain, and evacuation.

Main Results:

  • Static MRI visualizes pelvic floor anatomy in detail.
  • Dynamic MRI sequences assess pelvic floor behavior during various maneuvers.
  • Radiologists use the pubococcygeal line (PCL) to evaluate pelvic floor descent and elevation.

Conclusions:

  • Pelvic floor MRI is a powerful tool for diagnosing and characterizing pelvic floor disorders.
  • Static and dynamic MRI sequences provide comprehensive morphologic and functional assessments.
  • Technical aspects of MRI are key to accurate pelvic floor evaluation.