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Diffusion-weighted imaging in prostate cancer.

Tsutomu Tamada1, Yu Ueda2, Yoshiko Ueno3

  • 1Department of Radiology, Kawasaki Medical School, 577 Matsushima, Kurashiki city, Okayama, 701-0192, Japan. ttamada@med.kawasaki-m.ac.jp.

Magma (New York, N.Y.)
|September 7, 2021
PubMed
Summary
This summary is machine-generated.

Diffusion-weighted imaging (DWI) is crucial for detecting prostate cancer. This review explores optimizing DWI techniques, addressing limitations of current methods, and evaluating quantitative DWI for assessing cancer aggressiveness.

Keywords:
Diffusion-weighted imagingMRIProstate neoplasms

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Area of Science:

  • Radiology and Medical Imaging
  • Oncology
  • Biomedical Engineering

Background:

  • Diffusion-weighted imaging (DWI) is integral to multiparametric MRI (mpMRI) for prostate cancer detection.
  • Prostate Imaging Reporting and Data System (PI-RADS) v2/v2.1 highlights DWI's role in assessing prostate cancer risk.
  • Abbreviated biparametric MRI (bpMRI) shows promise, necessitating DWI advancements.

Purpose of the Study:

  • To review current challenges in standard DWI acquisition.
  • To discuss novel imaging techniques and sequences for DWI improvement.
  • To evaluate quantitative DWI's role in assessing prostate cancer aggressiveness.

Main Methods:

  • Review of existing literature on DWI techniques in prostate MRI.
  • Analysis of single-shot echo-planar imaging (SS-EPI) limitations.
  • Exploration of advanced DWI sequences and quantitative analysis methods.

Main Results:

  • Standard DWI (SS-EPI) faces challenges like susceptibility artifacts and distortion.
  • Emerging techniques offer potential solutions for improved DWI quality.
  • Quantitative DWI shows potential for evaluating tumor aggressiveness.

Conclusions:

  • Optimizing DWI is critical for the clinical adoption of bpMRI in prostate cancer screening.
  • Advanced DWI techniques are essential to overcome current limitations.
  • Quantitative DWI warrants further investigation for precise cancer assessment.