Role of contrast agent in evaluation of periprostatic invasion in prostate cancer

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MR Molecular Imaging of Prostate Cancer with a Small Molecular CLT1 Peptide Targeted Contrast Agent
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MR Molecular Imaging of Prostate Cancer with a Small Molecular CLT1 Peptide Targeted Contrast Agent

Published on: September 3, 2013

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Hüseyin A Kızıloğlu1, Murat Beyhan1, Erkan Gökçe1

  • 1Department of Radiology, Tokat Gaziosmanpaşa University Faculty of Medicine, Tokat, Türkiye.

Cirugia Y Cirujanos
|October 24, 2023
PubMed
Abstract

Insights

Biparametric prostate MRI (bpMRI) effectively detects prostate cancer invasion without contrast agents. This method shows excellent radiologist agreement for staging, simplifying diagnosis.

Area of Science:

  • Radiology
  • Oncology
  • Medical Imaging

Background:

  • Prostate cancer (PCa) staging relies on accurate detection of local invasion.
  • Multiparametric MRI (mpMRI) is standard, but contrast agents add complexity and cost.
  • Biparametric MRI (bpMRI) offers a potentially streamlined approach.

Purpose of the Study:

  • To evaluate the efficacy of biparametric MRI (bpMRI) in detecting periprostatic invasion in prostate cancer patients.
  • To compare the diagnostic performance of bpMRI versus traditional mpMRI for invasion detection.
  • To assess inter-reader agreement for invasion detection using both MRI techniques.

Main Methods:

  • Retrospective analysis of 75 prostate cancer patients with PIRADS 4-5 lesions.
  • Two datasets were created: Dataset-1 (bpMRI) and Dataset-2 (mpMRI).
  • Two radiologists with varying experience independently assessed both datasets for periprostatic invasion.

Main Results:

  • Periprostatic invasion was present in 33 patients.
  • Both radiologists detected 100% of invasion cases using both bpMRI and mpMRI datasets.
  • Excellent inter-reader agreement was observed for both bpMRI and mpMRI.

Conclusions:

  • Contrast-enhanced MRI is not essential for evaluating periprostatic invasion in prostate cancer.
  • bpMRI is a reliable tool for detecting invasion and aiding local staging.
  • This finding supports the potential for simplified MRI protocols in prostate cancer assessment.
Keywords:
BiparametricContrast agentMultiparametricPeriprostatic invasionProstate

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