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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,...
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NIRS: Past, Present, and Future in Functional Urology.

Alexander Koven1,2, Sender Herschorn1,3

  • 1Department of Surgery, University of Toronto, Toronto, ON Canada.

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|August 16, 2022
PubMed
Summary

Near infrared spectroscopy (NIRS) offers a non-invasive method to assess lower urinary tract dysfunction (LUTD). While promising for urodynamic insights, NIRS requires larger studies and technological refinement for clinical use.

Keywords:
BladderHemoglobinNear infrared spectroscopyUrodynamicsVoiding dysfunctionWearable technology

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Area of Science:

  • Biomedical Optics
  • Urology
  • Physiology

Background:

  • Near infrared spectroscopy (NIRS) is a non-invasive optical technique for assessing organ oxygenation and hemodynamics.
  • Lower urinary tract dysfunction (LUTD) encompasses various conditions affecting bladder function.
  • Understanding the brain-bladder connection is crucial for managing complex LUTD.

Purpose of the Study:

  • To review the applications of NIRS in the non-invasive assessment of LUTD.
  • To explore NIRS's role in evaluating conditions like bladder outlet obstruction, overactive/underactive bladder, and neurogenic LUTD.
  • To discuss technological advancements and the brain-bladder connection in relation to NIRS.

Main Methods:

  • Literature review of NIRS applications in LUTD.
  • Analysis of NIRS's potential for assessing various lower urinary tract conditions.
  • Discussion of technological progress and limitations.

Main Results:

  • NIRS has demonstrated potential across a spectrum of LUTD, including pediatric cases and pelvic floor dysfunction.
  • Studies often face limitations such as small sample sizes, lack of controls, and motion artifacts.
  • Existing literature may be based on outdated NIRS technology.

Conclusions:

  • NIRS shows promise for non-invasive urodynamic assessment beyond current capabilities.
  • NIRS is not yet ready for routine clinical practice due to limitations.
  • Future development requires larger validation studies, wearable technology integration, and multidisciplinary collaboration.