X-ray mammography has been used in the early detection of breast tumors for decades. Related techniques to enhance preventive screenings are still demanding. Since the 1990s, near infrared diffuse optical tomography (NIR DOT), a functional medical imaging modality, is being exploited and developed to reconstruct optical-coefficient images of tissues. Much endeavor to improve the spatial resolution and contrast of DOT images has been exerted for clinic applications in the diagnosis of breast tumors. The study aims at the design, implementation, and verification of a mammography based NIR DOT. This multimodality imaging method is able to provide information that neither X-ray nor diffuse optical tomography can give alone. To this end, a device with multiple-channel switching of NIR sources and translational scanning of out-emitted intensity constructed on a commercialized mammography system is being designed and built up. We employ the mammography image as structure information that is used as an initial guess for the image reconstruction of optical properties of tissues. Preliminary numerical trials are performed using heterogeneous phantoms made of high-scattering Intralipid. Promising results are obtained with various spatial resolutions due to partial NIR detected intensity.
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Breast Tumor Detection Instrument Through Mammography Based NIR DOT
Min-Cheng Pan
Min-Cheng Pan
Tungnan University
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Jun-Yu Chen
National Central University
H.-Z. Jiang
National Central University
L.-Y. Chen
National Central University
Min-Chun Pan
National Central University
Ch.-T. Wu
TaoYuan General Hospital
Min-Cheng Pan
Tungnan University
J. Med. Devices. Jun 2010, 4(2): 027529 (1 pages)
Published Online: August 10, 2010
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Published:
August 10, 2010
Citation
Chen, J., Jiang, H., Chen, L., Pan, M., Wu, C., and Pan, M. (August 10, 2010). "Breast Tumor Detection Instrument Through Mammography Based NIR DOT." ASME. J. Med. Devices. June 2010; 4(2): 027529. https://doi.org/10.1115/1.3443730
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