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Updated: May 31, 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

Prostate biopsy tracking with deformation estimation.

Michael Baumann¹, Pierre Mozer, Vincent Daanen

¹Université J. Fourier, TIMC Laboratory, CNRS, UMR 5525, Grenoble, France. michael.baumann@imag.fr

Medical Image Analysis

|June 28, 2011

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This study introduces a 3D ultrasound tracking system to improve prostate cancer diagnosis by accurately mapping biopsy locations. The system enhances precision and overcomes limitations of traditional 2D ultrasound methods.

Area of Science:

Medical Imaging
Surgical Technology
Oncology

Background:

Transrectal biopsies under 2D ultrasound (US) lack sensitivity due to prostate's isoechogenic nature and difficulties in systematic sampling.
Current 2D US-guided biopsies offer poor anatomical localization of samples, hindering accurate diagnosis and treatment planning.
Existing tracking systems aim to improve biopsy quality control and 3D visualization but face challenges with patient motion.

Purpose of the Study:

To develop and validate a volume-swept 3D US-based tracking system for precise prostate tissue motion estimation.
To enhance the accuracy and reliability of prostate biopsy procedures.
To create a biopsy assistance system overcoming the drawbacks of standard 2D US-guided biopsies.

Main Methods:

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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

Related Experiment Videos

Last Updated: May 31, 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

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

An entirely image-based tracking system utilizing a priori rectal probe kinematics model to address patient motion.

Elastic registration employed for accurate estimation of prostate deformations.

System validation through registration failure rates and accuracy assessment using segmented fiducials.

Main Results:

The proposed system demonstrated high robustness with only 17 registration failures (2%) out of 786 biopsy volumes from 47 patients.
Accuracy was evaluated at 0.76±0.52 mm using 687 registered volumes from 40 patients.
A clinical protocol for assisted biopsy acquisition was successfully implemented.

Conclusions:

The volume-swept 3D US tracking system significantly improves the accuracy and reliability of prostate biopsies.
This technology offers enhanced 3D visualization and precise anatomical localization of biopsy cores.
The developed biopsy assistance system addresses critical limitations of the standard 2D US-guided procedure, aiding diagnosis and treatment planning.