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European Radiology

, Volume 30, Issue 1, pp 308–319 | Cite as

Compressed sensing MRI of different organs: ready for clinical daily practice?

  • Bénédicte Marie Anne DelattreEmail author
  • Sana Boudabbous
  • Catrina Hansen
  • Angeliki Neroladaki
  • Anne-Lise Hachulla
  • Maria Isabel Vargas
Magnetic Resonance
  • 185 Downloads

Abstract

Objectives

The aim was to evaluate the image quality and sensitivity to artifacts of compressed sensing (CS) acceleration technique, applied to 3D or breath-hold sequences in different clinical applications from brain to knee.

Methods

CS with an acceleration from 30 to 60% and conventional MRI sequences were performed in 10 different applications in 107 patients, leading to 120 comparisons. Readers were blinded to the technique for quantitative (contrast-to-noise ratio or functional measurements for cardiac cine) and qualitative (image quality, artifacts, diagnostic findings, and preference) image analyses.

Results

No statistically significant difference in image quality or artifacts was found for each sequence except for the cardiac cine CS for one of both readers and for the wrist 3D proton density (PD)–weighted CS sequence which showed less motion artifacts due to the reduced acquisition time. The contrast-to-noise ratio was lower for the elbow CS sequence but not statistically different in all other applications. Diagnostic findings were similar between conventional and CS sequence for all the comparisons except for four cases where motion artifacts corrupted either the conventional or the CS sequence.

Conclusions

The evaluated CS sequences are ready to be used in clinical daily practice except for the elbow application which requires a lower acceleration. The CS factor should be tuned for each organ and sequence to obtain good image quality. It leads to 30% to 60% acceleration in the applications evaluated in this study which has a significant impact on clinical workflow.

Key Points

• Clinical implementation of compressed sensing (CS) reduced scan times of at least 30% with only minor penalty in image quality and no change in diagnostic findings.

• The CS acceleration factor has to be tuned separately for each organ and sequence to guarantee similar image quality than conventional acquisition.

• At least 30% and up to 60% acceleration is feasible in specific sequences in clinical routine.

Keywords

Magnetic resonance imaging Acceleration Image processing, computer-assisted Data compression 

Abbreviations

3D

Three-Dimensional

BTFE

Balanced turbo field echo

Cine

Cinematic sequence

CNR

Contrast-to-noise ratio

CS

Compressed sensing

FFE

Fast field echo

FLAIR

Fluid-attenuated inversion recovery

FOV

Field of view

mDixon

Multi-echo two-point Dixon

MRCP

Magnetic resonance cholangiopancreatography

MSK

Musculoskeletal

PD

Proton density

SENSE

Sensitivity encoding

SPAIR

Spectral attenuated inversion recovery

TSE

Turbo spin echo

VISTA

Volumetric isotropic T2w acquisition

Notes

Acknowledgments

The authors want to thank Philips for having provided the compressed SENSE option, the whole technician team for their implication in the sequence tuning and acquisition, in particular Ms. Mahjabeen Bontean and M. Cédric Garcia. We also gratefully thank the editor-in-chief Prof. Yves Menu and anonymous reviewers for their helpful comments.

Funding

The authors state that this work has not received any funding.

Compliance with ethical standards

Guarantor

The scientific guarantor of this publication is Prof. Maria Isabel Vargas.

Conflict of interest

The authors of this manuscript declare no relationships with any companies, whose products or services may be related to the subject matter of the article.

Statistics and biometry

No complex statistical methods were necessary for this paper.

Informed consent

Written informed consent was waived by the Institutional Review Board.

Ethical approval

Institutional Review Board approval was obtained (CCER 2016-01821).

Methodology

• retrospective

• cross-sectional study

• performed at one institution

Supplementary material

330_2019_6319_MOESM1_ESM.docx (16 kb)
ESM 1 (DOCX 16 kb)

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Copyright information

© European Society of Radiology 2019

Authors and Affiliations

  1. 1.Division of RadiologyGeneva University HospitalsGeneva 14Switzerland
  2. 2.Division of NeuroradiologyGeneva University Hospitals GenevaSwitzerland

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