Modified Reduced Field-of-View Diffusion-Weighted Magnetic Resonance Imaging of the Prostate: Comparison with Reduced Field-of-View Imaging and Single Shot Echo-Planar Imaging

Eun Ji Lee, Jiyoung Hwang, Yun Woo Chang, Seong Sook Hong, Eunsun Oh, Bo Da Nam, Jae Kon Sung, Benkert Thomas

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Objective The objective of this study was to compare the image quality and apparent diffusion coefficient (ADC) of diffusion-weighted imaging (DWI) with modified reduced field of view (FOV) based on 2-dimensional (2D)-selective radiofrequency excitations by tilting the excitation plane in prostate with reduced FOV using parallel-transmit-accelerated 2D-selective radiofrequency excitation and single-shot echo planar imaging (ssEPI). Methods Fifty patients who underwent multiparametric magnetic resonance imaging including 3 DWIs were included. Two observers independently performed qualitative image analyses using 5-point scale. Apparent diffusion coefficient measurements were performed for quantitative analysis. Results Modified reduced FOV provided the highest qualitative scores for all categories compared with reduced FOV and ssEPI (P < 0.000). Both reduced FOV DWIs showed higher ADC values compared with ssEPI (P < 0.001); however, the ADC ratios between the lesion and peripheral zone were not significantly different (all P > 0.05). Conclusions The modified reduced FOV DWI showed better overall image quality, differentiability of anatomic regions, and lesion conspicuity with fewer artifacts compared with DWI with reduced FOV and ssEPI.

Original languageEnglish
Pages (from-to)367-373
Number of pages7
JournalJournal of Computer Assisted Tomography
Volume45
Issue number3
DOIs
StatePublished - 2021

Bibliographical note

Funding Information:
From the *Department of Radiology, Soonchunhyang University Seoul Hospital; †Siemens Healthineers Ltd, Seoul, Korea; and ‡Siemens Healthcare GmbH, Erlangen, Germany. Received for publication September 15, 2020; accepted January 16, 2021. Correspondence to: Jiyoung Hwang, MD, PhD, Department of Radiology, Soonchunhyang University Hospital, Seoul 59 Daesakwan-ro, Yongsan-ku, Seoul 04401, Korea (e‐mail: jy0707hwang@schmc.ac.kr). This study was funded by Soonchunhyang University Research Fund. The authors declare no conflict of interest. Copyright © 2021 Wolters Kluwer Health, Inc. All rights reserved. DOI: 10.1097/RCT.0000000000001156

Publisher Copyright:
© Wolters Kluwer Health, Inc. All rights reserved.

Keywords

  • 2D-selective radiofrequency excitation
  • diffusion-weighted image
  • MRI
  • prostate cancer
  • reduced field of view

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