Partial Fourier in the presence of respiratory motion in prostate diffusion-weighted echo planar imaging.

ABSTRACT:

Purpose

To investigate the effect of respiratory motion in terms of signal loss in prostate diffusion-weighted imaging (DWI), and to evaluate the usage of partial Fourier in a free-breathing protocol in a clinically relevant b-value range using both single-shot and multi-shot acquisitions.

Methods

A controlled breathing DWI acquisition was first employed at 3 T to measure signal loss from deep breathing patterns. Single-shot and multi-shot (2-shot) acquisitions without partial Fourier (no pF) and with partial Fourier (pF) factors of 0.75 and 0.65 were employed in a free-breathing protocol. The apparent SNR and ADC values were evaluated in 10 healthy subjects to measure if low pF factors caused low apparent SNR or overestimated ADC.

Results

Controlled breathing experim

SUBMITTER: McTavish S 

PROVIDER: S-EPMC11417066 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature