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Related Concept Videos

Imaging Studies IV: Magnetic Resonance Imaging01:27

Imaging Studies IV: Magnetic Resonance Imaging

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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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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...
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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.
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Computed Tomography (CT) scan:
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Updated: Dec 25, 2025

Use of MRI-ultrasound Fusion to Achieve Targeted Prostate Biopsy
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New prostate MRI techniques and sequences.

Aritrick Chatterjee1,2, Carla Harmath1, Aytekin Oto3,4

  • 1Department of Radiology, University of Chicago, 5841 South Maryland Avenue, Chicago, IL, 60637, USA.

Abdominal Radiology (New York)
|April 6, 2020
PubMed
Summary
This summary is machine-generated.

New prostate MRI techniques enhance cancer diagnosis by improving image quality and enabling quantitative analysis. Advanced methods like MR fingerprinting and microstructure imaging offer detailed insights, aiding in more accurate prostate cancer detection.

Keywords:
Hybrid multi-dimensional MRIHyperpolarized 13C MRILuminal water imagingMR fingerprintingMRIProstate cancerProstatexRestriction spectrum imagingSegmented or multi-shot DWIVERDICT

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Area of Science:

  • Radiology
  • Medical Imaging
  • Oncology

Background:

  • Prostate MRI is increasingly vital for cancer diagnosis.
  • Advancements focus on improving image quality and acquisition speed.
  • New quantitative and AI-driven methods address interpretation subjectivity.

Purpose of the Study:

  • To review novel MRI techniques for prostate cancer (PCa) diagnosis.
  • To highlight advancements in image quality, acquisition speed, and quantitative analysis.
  • To explore new methods providing histological-like information.

Main Methods:

  • Review of techniques including segmented DWI, compressed sensing, k-t-SENSE, and PROPELLER for image quality and speed.
  • Exploration of quantitative methods like MR fingerprinting (T1, T2 mapping).
  • Analysis of microstructure imaging techniques: luminal water imaging (LWI), restriction spectrum imaging (RSI), VERDICT, and hybrid multi-dimensional MRI (HM-MRI).

Main Results:

  • PCa shows lower T1 and T2 values with MR fingerprinting.
  • LWI reveals reduced T2 signal in PCa.
  • RSI and VERDICT indicate increased intracellular water and volume fraction in PCa due to higher cellularity.
  • VERDICT also shows loss of extracellular-extravascular space.
  • HM-MRI quantifies tissue component volumes, with PCa exhibiting reduced lumen/stromal and increased epithelium volumes.

Conclusions:

  • Novel MRI techniques significantly improve prostate cancer diagnosis.
  • Quantitative and microstructure imaging provide detailed tissue characterization, correlating with histology.
  • These advancements mitigate subjective interpretation and enhance diagnostic accuracy.