1 July 2010 Optical tomography method that accounts for tilted chest wall in breast imaging
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Abstract
The chest wall underneath breast tissue distorts light reflection measurements, especially measurements obtained from distant source-detector pairs. For patients with a chest wall located at a shallower depth, the chest-wall effect needs to be considered in the image reconstruction procedure. Following our previous studies, this work systemically evaluates the performance of a two-layer model-based reconstruction using the finite element method, and compares it with the performance of the semi-infinite model. The results obtained from simulations and phantom experiments show that the two-layer model improves the light quantification of the targets. The improvements are attributed to improved background estimation and more accurate weight matrix calculation using a two-layer model compared to the semi-infinite model. Fitted two-layer background optical properties obtained from a group of ten patients with chest walls located less than 2 cm deep are more representative of breast tissue and chest-wall optical properties.
© (2010) Society of Photo-Optical Instrumentation Engineers (SPIE)
Yasaman Ardeshirpour, Quing Zhu, "Optical tomography method that accounts for tilted chest wall in breast imaging," Journal of Biomedical Optics 15(4), 041515 (1 July 2010). https://doi.org/10.1117/1.3449570 . Submission:
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