Minimal Elastographic Modeling of Breast Cancer for Model Based Tumour Detection in a Digital Image Elasto Tomography (DIET) System (2011)
Type of ContentConference Contributions - Published
PublisherUniversity of Canterbury. Electrical and Computer Engineering
University of Canterbury. Mechanical Engineering
AuthorsLotz, T., Muller, N., Hann, C.E., Chase, J.G.show all
Digital Image Elasto Tomography (DIET) is a non-invasive breast cancer screening technology that images the surface motion of a breast under harmonic mechanical actuation. A new approach capturing the dynamics and characteristics of tumor behavior is presented. A simple mechanical model of the breast is used to identify a transfer function relating the input harmonic actuation to the output surface displacements using imaging data of a silicone phantom. Areas of higher stiffness cause significant changes of damping and resonant frequencies as seen in the resulting Bode plots. A case study on a healthy and tumor silicone breast phantom shows the potential for this model-based method to clearly distinguish cancerous and healthy tissue as well as correctly predicting the tumor position.
CitationLotz, T., Muller, N., Hann, C.E., Chase, J.G. (2011) Minimal Elastographic Modeling of Breast Cancer for Model Based Tumour Detection in a Digital Image Elasto Tomography (DIET) System. Orlando, FL, USA: SPIE Medical Imaging Conference 2011, 12-17 Feb 2011. 4pp.
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Keywordsbreast cancer; mechanical breast model; transfer function; digital image elasto tomography; elastography
ANZSRC Fields of Research09 - Engineering::0903 - Biomedical Engineering::090303 - Biomedical Instrumentation
11 - Medical and Health Sciences::1103 - Clinical Sciences::110320 - Radiology and Organ Imaging
11 - Medical and Health Sciences::1112 - Oncology and Carcinogenesis::111202 - Cancer Diagnosis