Contrast-enhanced microwave imaging of breast tumors: a computational study using 3D realistic numerical phantoms
نویسندگان
چکیده
منابع مشابه
Contrast-enhanced microwave imaging of breast tumors
The detection of early-stage tumors in the breast by microwave imaging is challenged by both the moderate endogenous dielectric contrast between healthy and malignant glandular tissues and the spatial resolution available from illumination at microwave frequencies. The high endogenous dielectric contrast between adipose and fibroglandular tissue structures increases the difficulty of tumor dete...
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PURPOSE Breast density measurement has the potential to play an important role in individualized breast cancer risk assessment and prevention decisions. Routine evaluation of breast density will require the availability of a low-cost, nonionizing, three-dimensional (3-D) tomographic imaging modality that exploits a strong properties contrast between dense fibroglandular tissue and less dense ad...
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We present a technique for fabricating realistic breast phantoms for microwave imaging experiments. Using oil-in-gelatin dispersions that mimic breast tissue dielectric properties at microwave frequencies, we constructed four heterogeneous phantoms spanning the full range of volumetric breast densities. We performed CT scans and dielectric properties measurements to characterize each phantom.
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This work describes a technique which has been developed for the detection and imaging of breast cancer tumours. It describes how 3D images can be reconstructed from 2D scalar intensity patterns, or holograms. An outline of the background theory in described followed by experimental results on paraffin wax breast phantoms Results demonstrate that this technique is capable of determining the loc...
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ژورنال
عنوان ژورنال: Inverse Problems
سال: 2010
ISSN: 0266-5611,1361-6420
DOI: 10.1088/0266-5611/26/7/074009