E-ISSN: 1305-3612
    Comparison of diffusion-weighted MRI acquisition techniques for normal pancreas at 3.0 Tesla
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    Abdominal Imaging - Original Article
    VOLUME: 20 ISSUE: 5
    P: 368-373
    September 2014

    Comparison of diffusion-weighted MRI acquisition techniques for normal pancreas at 3.0 Tesla

    Diagn Interv Radiol 2014;20(5):368-373
    DOI: 10.5152/dir.2014.13454
    Xiu-Zhong Yao,
    Tiantao Kuang,
    Li Wu,
    Hao Feng,
    Hao Liu,
    Wei-Zhong Cheng,
    Sheng-Xiang Rao,
    He Wang,
    Meng-Su Zeng
    1. Department of Radiology, Zhongshan Hospital of Fudan University, Shanghai, China; Department of Medical Imaging, Shanghai Institute of Medical Imaging, Shanghai Medical College of Fudan University, Shanghai, China
    2. Department of General Surgery, Zhongshan Hospital of Fudan University, Shanghai, China
    3. Global Applied Science Laboratory, GE Healthcare, Shanghai, China
    No information available.
    No information available
    Received Date: 22.11.2013
    Accepted Date: 24.02.2014
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    ABSTRACT

    PURPOSE

    We aimed to optimize diffusion-weighted imaging (DWI) acquisitions for normal pancreas at 3.0 Tesla.

    MATERIALS AND METHODS

    Thirty healthy volunteers were examined using four DWI acquisition techniques with b values of 0 and 600 s/mm2 at 3.0 Tesla, including breath-hold DWI, respiratory-triggered DWI, respiratory-triggered DWI with inversion recovery (IR), and free-breathing DWI with IR. Artifacts, signal-to-noise ratio (SNR) and apparent diffusion coefficient (ADC) of normal pancreas were statistically evaluated among different DWI acquisitions.

    RESULTS

    Statistical differences were noticed in artifacts, SNR, and ADC values of normal pancreas among different DWI acquisitions by ANOVA (P < 0.001). Normal pancreas imaging had the lowest artifact in respiratory-triggered DWI with IR, the highest SNR in respiratory-triggered DWI, and the highest ADC value in free-breathing DWI with IR. The head, body, and tail of normal pancreas had statistically different ADC values on each DWI acquisition by ANOVA (P < 0.05).

    CONCLUSION

    The highest image quality for normal pancreas was obtained using respiratory-triggered DWI with IR. Normal pancreas displayed inhomogeneous ADC values along the head, body, and tail structures.

    References

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