pISSN 1738-6756   eISSN 2092-9900
Open Access, Peer-reviewed
    J Breast Cancer. 2008 Mar;11(1):40-44. Korean.
    Published online Mar 31, 2008.
    https://doi.org/10.4048/jbc.2008.11.1.40
    Copyright © 2008 Korean Breast Cancer Society
    Original Article

    Synchrotron Radiation Imaging of Female Breast Tissues Using Phase Contrast Technique

    Young Ju Jeong, Jin Gu Bong, Hong Tae Kim,1 Jong Ki Kim,2 Sang Hoon Jheon,3 Hwa Shik Youn,4 and Sung Hwan Park
      • Department of Surgery, College of Medicine, Catholic University of Daegu, Daegu, Korea.
      • 1Department of Anatomy, College of Medicine, Catholic University of Daegu, Daegu, Korea.
      • 2Department of Radiology and Biomedical Engineering, College of Medicine, Catholic University of Daegu, Daegu, Korea.
      • 3Department of Thoracic and Cardiovascular Surgery, College of Medicine, Seoul National University, Seoul, Korea.
      • 4Pohang Accelerator Laboratory, Pohang University of Science and Technology, Pohang, Korea.
    Received November 21, 2007; Accepted January 29, 2008.

    Abstract

    Purpose

    X-ray microscopy with synchrotron radiation might be a useful tool for novel x-ray imaging in the clinical and laboratory settings. This technique provides detailed images of internal structures non-invasively. It also has the potential to resolve some of the limitations of conventional breast imaging. We evaluated high resolution synchrotron imaging of breast tissues from normal breasts and breasts with fibroadenomas and cancer.

    Methods

    A new x-ray microscope was installed on the 1B2 beamline of a Pohang Light Source, at a third generation synchrotron radiation facility in Pohang, Korea. The phase contrast x-ray energy was set at 6.95 keV and the x-ray beam was monochromatized by a W/B4C monochromator. Formalin-fixed or unfixed female breast tissue from normal breast as well as breasts with fibroadenomas and carcinoma were attached onto the Kapton film. The sample was positioned 25 m away from the beam source. The x-ray image of the sample was converted into a visual image on the CsI (TI) scintillation crystal, and magnified 20 times by the microscopic objective lens. After an additional 10 fold digital magnification, this visual image was captured by a full frame CCD camera.

    Results

    The monochromated x-ray microscopic images of female breast tissue from normal breast, fibroadenoma and carcinoma cases were evaluated. The total magnifying power of the microscope was ×200. This synchrotron radiation imaging enabled us to observe detailed structures of breast tissue without sample preparation such as staining or fixation.

    Conclusion

    Using monochromated synchrotron radiation, the x-ray microscopic images of the normal breast and breasts with fibroadenomas and cancer were obtained. From the images obtained, the x-ray microscopic imaging of breast tissue with synchrotron radiation appears to have great potential for clinical and research purposes such as oncology studies, early detection of cancer and as an aid to the pathological diagnosis in the future.

    Keywords
    Breast; Microscopic imaging; Phase contrast imaging; Synchrotron radiation

    Figures

    Fig 1
    The layout of the 1B2 beamline optics. A x-ray microscope was insalled on the 1B2 beamline of a Pohang Light Source, at a third generation synchrotron radiation facility in Pohang, Korea.

    Fig 2
    Normal breast tissue. This is the monochromated synchrotron image of normal breast of premenopausal woman. It shows normal ductal structures (arrows), fat tissue (arrowheads) and supporting fibrous stroma. The specimen is 2.7×1.6 mm in size, 30 µm thick, unfixed.

    Fig 3
    Fibroadenoma. This is the monochromated synchrotron image of fibroadenoma of premenopausal woman. It shows homogeneous densities with characteristic fibrous connective tissues (arrows) and stromal proliferation. The specimen is 1.2×0.4 mm in size, 30 µm thick, unfixed.

    Fig 4
    Breast cancer. This is the monochromated synchrotron image of breast cancer of postmenopausal woman. It shows typical histopathologic findings of breast cancer such as stromal proliferation (arrowhead), loss of ductal structure, infiltrating tumor cells into adjacent fat tissues (arrows). The specimen is 2.3×1.4 mm in size, 10 µm thick, formalin-fixed.

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    MeSH Terms
    Breast
    Early Detection of Cancer
    Female
    Fibroadenoma
    Humans
    Korea
    Light
    Microscopy
    Synchrotrons
    Metrics
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