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Diffusion tensor imaging of the normal prostate at 3 Tesla.

Bengi Gürses1, Neslihan Kabakci, Arzu Kovanlikaya

  • 1Department of Radiology, Yeditepe University Hospital, Kozyatagi, Istanbul, 34752, Turkey. bengur0@yahoo.com

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Summary

This study demonstrates the feasibility of prostate diffusion tensor imaging (DTI) using 3-Tesla MRI. It establishes normative apparent diffusion coefficient (ADC) and fractional anisotropy (FA) values for healthy prostate zones.

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Area of Science:

  • Radiology
  • Medical Imaging
  • Biophysics

Background:

  • Diffusion Tensor Imaging (DTI) offers insights into tissue microstructure.
  • Establishing normative values for prostate DTI parameters is crucial for detecting abnormalities.

Purpose of the Study:

  • To evaluate the feasibility of prostate DTI with a 3-Tesla MRI system.
  • To determine normative fractional anisotropy (FA) and apparent diffusion coefficient (ADC) values for healthy prostate central and peripheral zones.

Main Methods:

  • Utilized a 3-Tesla MRI system with a six-channel phased array coil for prostate imaging.
  • Acquired T2-weighted turbo spin-echo (TSE) and diffusion tensor imaging (DTI) sequences.
  • Measured ADC and FA values in the central and peripheral zones using region of interest (ROI) analysis.

Main Results:

  • Prostate DTI was feasible in 28 healthy volunteers.
  • Mean ADC values were significantly lower in the central gland (1.220 x 10(-3) mm(2)/s) compared to the peripheral gland (1.610 x 10(-3) mm(2)/s).
  • Mean FA values were significantly higher in the central gland (0.26) than in the peripheral gland (0.16).

Conclusions:

  • 3-Tesla MRI facilitates feasible prostate DTI.
  • Normative ADC and FA values for healthy prostate zones were established.
  • Findings correlate with the known microstructural organization of the prostate gland.