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Magnetic Resonance Imaging

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...

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Updated: Mar 29, 2026

Use of MRI-ultrasound Fusion to Achieve Targeted Prostate Biopsy

Use of MRI-ultrasound Fusion to Achieve Targeted Prostate Biopsy

Published on: April 9, 2019

Navigating MRI-TRUS fusion biopsy: optimizing the process and avoiding technical pitfalls.

Kae Jack Tay¹, Rajan T Gupta², Ardeshir R Rastinehad³

¹a Division of Urology , Duke University Medical Center , Durham , NC , USA.

Expert Review of Anticancer Therapy

|December 15, 2015

Summary

This summary is machine-generated.

Multi-parametric MRI (mpMRI) and MRI-trans-rectal ultrasound (TRUS) fusion biopsy enhance prostate cancer detection. Optimizing probe stability and employing a multidisciplinary approach are key to improving biopsy accuracy and outcomes.

Keywords:

MRI-TRUS fusion biopsy mpMRI pitfalls prostate cancer technique

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Quantitative Magnetic Resonance Imaging of Skeletal Muscle Disease

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Published on: December 18, 2016

Area of Science:

Urology
Radiology
Medical Engineering

Background:

Multi-parametric MRI (mpMRI) is crucial for detecting and characterizing clinically significant prostate cancer.
MRI-TRUS fusion biopsy offers targeted histological confirmation of MRI-visible lesions.

Purpose of the Study:

To detail the components of the MRI-TRUS fusion biopsy procedure.
To discuss strategies for optimizing biopsy accuracy and outcomes.

Main Methods:

The process involves acquiring ultrasound (US) images for 3D US model generation.
Registration and fusion of MRI and US data require precise probe positioning and pressure control.

Main Results:

mpMRI interpretation is technical and reader-dependent.
Achieving maximum registration accuracy necessitates stabilizing probe position and pressure.
Real-time error correction is vital for accurate targeting.

Conclusions:

Optimizing targeting accuracy involves environmental, medical, and engineering interventions.
A multidisciplinary team approach is essential for improving all aspects of the fusion biopsy procedure.