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Related Concept Videos

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 22, 2026

Transperineal Prostate Biopsy Using a Cone-shaped Double-hole Method with Dual-plane Probe Guidance
05:35

Transperineal Prostate Biopsy Using a Cone-shaped Double-hole Method with Dual-plane Probe Guidance

Published on: June 6, 2025

Imaging-guided prostate biopsy: conventional and emerging techniques.

Joseph H Yacoub1, Sadhna Verma, Jonathan S Moulton

  • 1Department of Radiology, University of Chicago, 5841 S Maryland Ave, MC 2026, Chicago, IL 60637, USA.

Radiographics : a Review Publication of the Radiological Society of North America, Inc
|May 15, 2012
PubMed
Summary
This summary is machine-generated.

Magnetic resonance (MR) imaging improves prostate cancer detection over standard biopsies by directly visualizing lesions. MR imaging-guided biopsies offer higher accuracy, especially after negative conventional biopsies, though they are more time-consuming.

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A Cognitive Fusion-guided Prostate Biopsy Using Multiparametric Magnetic Resonance Imaging and Transrectal Ultrasound
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Last Updated: May 22, 2026

Transperineal Prostate Biopsy Using a Cone-shaped Double-hole Method with Dual-plane Probe Guidance
05:35

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Published on: June 6, 2025

A Cognitive Fusion-guided Prostate Biopsy Using Multiparametric Magnetic Resonance Imaging and Transrectal Ultrasound
06:08

A Cognitive Fusion-guided Prostate Biopsy Using Multiparametric Magnetic Resonance Imaging and Transrectal Ultrasound

Published on: March 21, 2025

Area of Science:

  • Urology
  • Radiology
  • Oncology

Background:

  • Transrectal ultrasonography (US)-guided biopsy is standard for prostate cancer diagnosis.
  • This method has limitations due to the inability to directly visualize and target prostate lesions.
  • Magnetic resonance (MR) imaging offers direct visualization of prostate abnormalities, overcoming these limitations.

Purpose of the Study:

  • To evaluate the role of MR imaging in improving prostate cancer detection and biopsy accuracy.
  • To compare the diagnostic yield of MR imaging-guided biopsy with conventional US-guided biopsy.
  • To explore advanced MR imaging techniques and novel guidance methods for prostate biopsy.

Main Methods:

  • Utilized standard T2-weighted MR imaging combined with advanced techniques like diffusion-weighted imaging, dynamic contrast-enhanced imaging, and MR spectroscopy.
  • Targeted suspicious regions identified on MR images during real-time transrectal US-guided biopsy.
  • Compared detection rates of MR imaging-guided biopsy versus repeat US-guided biopsy in patients with prior negative biopsies.
  • Investigated fused MR imaging-US guidance and robotic-assisted MR imaging-guided biopsy.

Main Results:

  • MR imaging improves prostate cancer detection by directly visualizing abnormalities.
  • MR imaging-guided biopsy shows improved detection rates compared to repeat US-guided biopsy after initial negative results.
  • Fused MR imaging-US guidance shows promise but is limited by prostate deformation.
  • Robotic assistance for MR imaging-guided biopsy is under investigation for improved needle placement accuracy.

Conclusions:

  • MR imaging significantly enhances the accuracy of prostate cancer diagnosis and biopsy.
  • Combining MR imaging with targeted biopsy techniques improves diagnostic yield.
  • Advanced and emerging MR imaging-guided biopsy techniques hold potential for further improving prostate cancer detection and management.