Volume 52, Issue 6 pp. 1852-1858
Original Research

High-Resolution Breast MRI Reconstruction Using a Deep Convolutional Generative Adversarial Network

Kun Sun MD, PhD

Kun Sun MD, PhD

Department of Radiology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China

Department of Radiology and BRIC, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA

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Liangqiong Qu PhD

Liangqiong Qu PhD

Department of Radiology and BRIC, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA

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Chunfeng Lian PhD

Chunfeng Lian PhD

Department of Radiology and BRIC, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA

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Yongsheng Pan PhD

Yongsheng Pan PhD

Department of Radiology and BRIC, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA

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Dan Hu PhD

Dan Hu PhD

Department of Radiology and BRIC, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA

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Bingqing Xia MD

Bingqing Xia MD

Department of Radiology, International Peace Maternity and Child Health Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China

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Xinyue Li MD

Xinyue Li MD

Department of Radiology, Ruijin Hospital Luwan Branch, Shanghai Jiaotong University School of Medicine, Shanghai, China

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Weimin Chai MD, PhD

Weimin Chai MD, PhD

Department of Radiology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China

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Fuhua Yan MD,PhD

Corresponding Author

Fuhua Yan MD,PhD

Department of Radiology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China

Address reprint requests to: Dinggang Shen, Department of Research and Development,Shanghai United Imaging Intelligence Co.,Ltd.,Shanghai,China. E-mail: [email protected]

Fuhua Yan, Department of Radiology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China. E-mail: [email protected]

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Dinggang Shen PhD

Corresponding Author

Dinggang Shen PhD

Department of Research and Development, Shanghai United Imaging Intelligence Co.,Ltd., Shanghai, China

Department of Brain and Cognitive Engineering, Korea University, Seoul 02841, Republic of Korea

Address reprint requests to: Dinggang Shen, Department of Research and Development,Shanghai United Imaging Intelligence Co.,Ltd.,Shanghai,China. E-mail: [email protected]

Fuhua Yan, Department of Radiology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China. E-mail: [email protected]

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First published: 12 July 2020
Citations: 4

# Co-first authors The first two authors contributed equally to this work.

Abstract

Background

A generative adversarial network could be used for high-resolution (HR) medical image synthesis with reduced scan time.

Purpose

To evaluate the potential of using a deep convolutional generative adversarial network (DCGAN) for generating HRpre and HRpost images based on their corresponding low-resolution (LR) images (LRpre and LRpost).

Study Type

This was a retrospective analysis of a prospectively acquired cohort.

Population

In all, 224 subjects were randomly divided into 200 training subjects and an independent 24 subjects testing set.

Field Strength/Sequence

Dynamic contrast-enhanced (DCE) MRI with a 1.5T scanner.

Assessment

Three breast radiologists independently ranked the image datasets, using the DCE images as the ground truth, and reviewed the image quality of both the original LR images and the generated HR images. The BI-RADS category and conspicuity of lesions were also ranked. The inter/intracorrelation coefficients (ICCs) of mean image quality scores, lesion conspicuity scores, and Breast Imaging Reporting and Data System (BI-RADS) categories were calculated between the three readers.

Statistical Test

Wilcoxon signed-rank tests evaluated differences among the multireader ranking scores.

Results

The mean overall image quality scores of the generated HRpre and HRpost were significantly higher than those of the original LRpre and LRpost (4.77 ± 0.41 vs. 3.27 ± 0.43 and 4.72 ± 0.44 vs. 3.23 ± 0.43, P < 0.0001, respectively, in the multireader study). The mean lesion conspicuity scores of the generated HRpre and HRpost were significantly higher than those of the original LRpre and LRpost (4.18 ± 0.70 vs. 3.49 ± 0.58 and 4.35 ± 0.59 vs. 3.48 ± 0.61, P < 0.001, respectively, in the multireader study). The ICCs of the image quality scores, lesion conspicuity scores, and BI-RADS categories had good agreements among the three readers (all ICCs >0.75).

Data Conclusion

DCGAN was capable of generating HR of the breast from fast pre- and postcontrast LR and achieved superior quantitative and qualitative performance in a multireader study.

Level of Evidence

3

Technical Efficacy Stage

2 J. MAGN. RESON. IMAGING 2020;52:1852–1858.

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