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Comparison of field-of-view (FOV) optimized and constrained undistorted single shot (FOCUS) with conventional DWI for the evaluation of prostate cancer

  • Zhaoyan Feng
    Affiliations
    Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
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  • Xiangde Min
    Affiliations
    Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
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  • Vivek Kumar Sah
    Affiliations
    Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
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  • Liang Li
    Affiliations
    Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
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  • Jie Cai
    Affiliations
    Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
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  • Ming Deng
    Affiliations
    Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
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  • Liang Wang
    Correspondence
    Corresponding author. Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China. Tel.: +86-27-83663737 (office), +86-13971625289 (mobile).
    Affiliations
    Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
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      Abstract

      Objectives

      Qualitative and quantitative comparison of the application value of diffusion-weighted imaging (DWI) magnetic resonance imaging based on field-of-view (FOV) optimized and constrained undistorted single shot (FOCUS) with the standard single-shot echo-planar imaging (ss-EPI) in patients with prostate cancer.

      Methods

      A total of 28 patients with 33 prostate cancers underwent ss-EPI and FOCUS DWI. Two independent readers assessed image studies.

      Results

      Image qualities of FOCUS were rated superior to ss-EPI (P<.001). The mean apparent diffusion coefficient value of 33 cancers was 974.030×10−6 mm2/s and 941.727×10−6 mm2/s, respectively, and the difference was statistically significant (t=2.579, P=.015).

      Conclusions

      FOCUS as a high-resolution DWI technique has potential clinical utility.

      Keywords

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