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Diagnostic Accuracy of a MR Protocol Acquired with and without Endorectal Coil for Detection of Prostate Cancer: A

Borna K Barth1, Niels J Rupp2, Alexander Cornelius3

  • 1Institute of Diagnostic and Interventional Radiology, Zurich.

Current Urology
|May 23, 2019
PubMed
Abstract

Insights

Comparing prostate cancer detection using MRI with and without an endorectal coil (ERC) showed no significant diagnostic accuracy differences. Both multiparametric MRI (mpMRI) protocols demonstrated comparable sensitivity and positive predictive value for identifying index lesions.

Area of Science:

  • Radiology
  • Oncology
  • Medical Imaging

Background:

  • Prostate cancer detection relies on accurate imaging.
  • Multiparametric magnetic resonance imaging (mpMRI) is a key tool.
  • The utility of an endorectal coil (ERC) in prostate mpMRI protocols requires evaluation.

Purpose of the Study:

  • To compare the diagnostic accuracy of prostate cancer detection using mpMRI with and without an ERC.
  • To evaluate sensitivity and positive predictive value of mpMRI protocols with and without ERC.

Main Methods:

  • Retrospective study of 33 patients who underwent 3T prostate-MRI.
  • Images acquired with (mpMRI_ERC) and without (mpMRI_PPA) ERC were analyzed.
  • Two expert readers assigned PI-RADS v2 scores; sensitivity and PPV assessed against histopathology.

Main Results:

  • Cumulative sensitivity ranged from 0.61-0.67 for mpMRI_PPA and 0.76-0.88 for mpMRI_ERC.
  • Cumulative positive predictive value ranged from 0.80-0.81 for mpMRI_PPA and 0.89-0.91 for mpMRI_ERC.
  • No statistically significant differences were found between the two protocols for either reader.

Conclusions:

  • The study suggests no significant difference in prostate cancer detection between mpMRI with and without an ERC.
  • Both imaging protocols demonstrated comparable performance in identifying index lesions.
  • Further research may be warranted to confirm these findings in larger cohorts.
Keywords:
Diagnostic accuracyEndorectal coilIndex lesionProstate MRIProstate cancer

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