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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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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...

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Related Experiment Video

Updated: Apr 30, 2026

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

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

Published on: March 21, 2025

MR imaging-guided prostate biopsy techniques.

Sadhna Verma¹, Anil S Bhavsar¹, James Donovan²

¹Department of Radiology, University of Cincinnati Medical Center, 234 Goodman Street, PO Box 670761, Cincinnati, OH 45267-0761, USA.

Magnetic Resonance Imaging Clinics of North America

|May 6, 2014

Summary

This summary is machine-generated.

Magnetic Resonance (MR) imaging improves prostate biopsy accuracy by enabling targeted lesion detection. This advancement helps accurately grade prostate cancer, guiding treatment decisions for active surveillance and other therapies.

Keywords:

Diagnostic MR imaging MR imaging/ultrasound fusion MR imaging–guided prostate biopsy Prostate cancer Transrectal ultrasound–guided biopsy

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

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Published on: March 21, 2025

Use of MRI-ultrasound Fusion to Achieve Targeted Prostate Biopsy

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Published on: June 6, 2025

Area of Science:

Urology
Radiology
Oncology

Background:

Transrectal ultrasound (TRUS)-guided prostate biopsies often miss suspicious lesions due to limited visualization.
Accurate cancer grading is crucial for managing low-grade prostate cancer, particularly with the rise of active surveillance.

Purpose of the Study:

To evaluate the efficacy of MR imaging-guided and MR/TRUS fusion biopsy techniques for prostate cancer detection and characterization.
To determine if advanced MR imaging can improve the accuracy of prostate biopsy compared to traditional methods.

Main Methods:

Utilizing advances in prostate MR imaging to detect suspicious lesions within the prostate gland.
Performing lesion-directed biopsies using MR guidance or MR imaging/transrectal ultrasound fusion techniques.

Main Results:

MR imaging allows for better visualization and targeting of suspicious prostate lesions.
MR-guided or fusion biopsies accurately identify and characterize prostate cancers.
Improved histological grading enables better patient stratification for therapies like active surveillance.

Conclusions:

MR imaging-guided and fusion biopsy techniques represent a significant advancement over traditional TRUS-guided biopsies.
These MR-based methods enhance the ability to accurately diagnose and stage prostate cancer, optimizing treatment strategies.