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Japanese Journal of Radiology
Published in: Japanese Journal of Radiology 4/2020

01-04-2020 | Magnetic Resonance Imaging | Original Article

Diffusion-weighted imaging with simultaneous multi-slice echo-planar technique for the diagnosis of breast magnetic resonance imaging

Authors: Youichi Machida, Kyoko Nomura, Akiko Shimauchi, Yoshiaki Kato, Machiko Nagatsuka, Eisuke Fukuma

Published in: Japanese Journal of Radiology | Issue 4/2020

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Abstract

Purpose

To evaluate the diagnostic potential of simultaneous multi-slice echo-planar diffusion-weighted imaging (DWI) (SMS-DWI).

Materials and methods

A total of 55 consecutive patients underwent breast magnetic resonance imaging (MRI) between April and September 2018. SMS-DWI and single-shot echo-planar DWI (SS-EPI-DWI) sequences were obtained with the following parameters: b value, 0, 850, and 1200 mm2/s for both; spacing between sections, 2 mm for SMS-DWI and 3 mm for SS-EPI-DWI. Lesion visibility was assessed by two radiologists, and minimal and maximal apparent diffusion coefficients (ADCs) for masses were measured. The Mann–Whitney U test and receiver operating characteristic (ROC) curve analysis were performed.

Results

Of the 55 cases, 23 (41.8%) were malignant and 32 (58.2%) were benign. Visual conspicuity was superior on SMS-DWI in 47.1% (n = 16/34) or 55.9% (n = 19/34) among the lesions visible on DWI and ADC. ROC curve analyses revealed an area under the curve of 0.87 [95% confidence interval (CI) 0.68–1.00], 0.94 (95% CI 0.86–1.00), 0.93 (95% CI 0.84–1.00) and 0.90 (95% CI 0.77–1.00) for minimal and maximal ADC on SMS-DWI and ADC on SS-EPI-DWI, respectively.

Conclusion

Simultaneous multi-slice technique provided breast DWI of better visual conspicuity and comparable diagnostic performance with shorter acquisition time.
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Metadata
Title
Diffusion-weighted imaging with simultaneous multi-slice echo-planar technique for the diagnosis of breast magnetic resonance imaging
Authors
Youichi Machida
Kyoko Nomura
Akiko Shimauchi
Yoshiaki Kato
Machiko Nagatsuka
Eisuke Fukuma
Publication date
01-04-2020
Publisher
Springer Singapore
Published in
Japanese Journal of Radiology / Issue 4/2020
Print ISSN: 1867-1071
Electronic ISSN: 1867-108X
DOI
https://doi.org/10.1007/s11604-020-00919-3

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