Chemical shift-encoded multishot EPI for navigator-free prostate DWI.

ABSTRACT:

Purpose

DWI is an important contrast for prostate MRI to enable early and accurate detection of cancer. This study introduces a Dixon 3-shot-EPI protocol with structured low-rank reconstruction for navigator-free DWI. The aim is to overcome the limitations of single-shot EPI (ssh-EPI), such as geometric distortions and fat signal interference, while addressing the motion-induced phase variations of multishot EPI and simultaneously allowing water/fat separation.

Methods

DWI data were acquired from 7 healthy volunteers using both Dixon 3-shot EPI and standard fat-suppressed ssh-EPI with similar scan times for comparison. Two readers evaluated image quality using a 5-point Likert scale regarding different aspects. The ADC values were quantitatively compared between protocols. T

SUBMITTER: Dong Y 

PROVIDER: S-EPMC11680737 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature