A step towards scan time minimisation: simultaneous multislice-accelerated 
diffusion-weighted imaging of the liver

Taron, J; Martirosian, P; Erb, M; Kuestner, T; Weiss, J; Notohamiprodjo, M; Schwenzer, N; Nikolaou, K; Schraml, C

doi:10.1007/s13244-016-0475-8

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Meeting Abstract

A step towards scan time minimisation: simultaneous multislice-accelerated diffusion-weighted imaging of the liver

MPS-Authors

There are no MPG-Authors in the publication available

External Resource

https://link.springer.com/content/pdf/10.1007%2Fs13244-016-0475-8.pdf
(Publisher version)

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

There are no public fulltexts stored in PuRe

Supplementary Material (public)

There is no public supplementary material available

Citation

Taron, J., Martirosian, P., Erb, M., Kuestner, T., Weiss, J., Notohamiprodjo, M., et al. (2016). A step towards scan time minimisation: simultaneous multislice-accelerated diffusion-weighted imaging of the liver. Insights into Imaging, 7(Supplement 1): B-0593, S289.

Cite as: https://hdl.handle.net/21.11116/0000-0003-23B8-6

Abstract

Purpose: To investigate the influence of different gradient preparation schemes and acceleration factors on acqusition time, image quality and quantitative parameters of simultaneous multislice-accelerated diffusion-weighted imaging of the liver in comparison to conventional sequences.
Methods and Materials: Respiratory-triggered simultaneous multislice diffusion-weighted imaging (sms-DWI) of the liver was performed at 1.5 T in ten healthy volunteers using a monopolar (MP) versus a bipolar (BP) gradient preparation with an sms-acceleration factor (AF) of 2 and 3 and compared to conventional diffusion-weighted images (c-DWI). Qualitative image analysis was carried out by two independent readers. Signal-to-noise ratios (SNR) and apparent diffusion coefficient (ADC) values were measured in a region-of-interest analysis. Total scan time was measured. The Kruskal-Wallis test followed by Steel-Dwass comparisons was executed for statistical analysis with p-values < 0.05 considered significant.
Results: Image quality in sms-DWI with AF2 was equivalenty high compared to c-DWI, with a reduction of scan time by 67%. AF3 resulted in only minor additional scan time reduction (by 69%) but was associated with a statistically significant deterioration of image quality. ADC values in sms-DWI were lower, SNR was higher as compared to c-DWI. Image quality was slightly higher using the MP diffusion preparation in sms-DWI and c-DWI.
Conclusion: Sms-DWI with an AF of 2 is a promising approach for scan time minimization while maintaining high image quality in DWI of the liver. The diffusion preparation did not significantly influence image quality in sms-DWI. The lower ADC values in sms-DWI should be considered in diagnostic reading studies.